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  • 北京元坤伟业科技有限公司

         该会员已使用本站17年以上

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  • 深圳市和诚半导体有限公司

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  • 数量8735 
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  • 数量18355 
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  • 数量9800 
  • 厂家MIC 
  • 封装SOT153 
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  • 数量7512 
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  • 数量5600 
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  • 厂家MICROCHIP-微芯 
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  • 数量30000 
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  • 数量92557 
  • 厂家MIC 
  • 封装SOT153 
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  • 数量5800 
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  • 封装SOT23 
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  • 数量38200 
  • 厂家Microchip(微芯) 
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  • 数量1200 
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  • 数量527 
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  • 封装SOT23-5 
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  • 数量55700 
  • 厂家MICROCHIP TECHNOLOGY 
  • 封装SOT235 
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  • 深圳市亿智腾科技有限公司

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  • 数量18560 
  • 厂家MIC 
  • 封装SOT153 
  • 批号16PB 
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  • 万三科技(深圳)有限公司

     该会员已使用本站2年以上
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  • 数量660000 
  • 厂家MICROCHIP(美国微芯) 
  • 封装SOT-23-5 
  • 批号23+ 
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  • 深圳市深宇芯科技有限公司

     该会员已使用本站12年以上
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  • 数量9885 
  • 厂家Microchip 
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     该会员已使用本站15年以上
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  • 数量30000 
  • 厂家ON 
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  • 数量6500000 
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产品型号TC77-5.0MCTTR的概述

TC77-5.0MCTTR芯片概述 TC77-5.0MCTTR是一款来自Microchip Technology Inc.的高精度数字温度传感器。该芯片设计旨在满足各种工业和消费电子应用的需求,其高精度和低功耗特性使其在温度监测系统中广受欢迎。TC77-5.0MCTTR的工作原理是基于半导体温度传感器技术,能够以数字方式输出温度数据,简化了温度读取和处理的复杂性。该芯片提供了高达±0.5°C的精度,使其在温度控制和监测应用中表现出色。 TC77-5.0MCTTR的详细参数 #### 1. 工作电压范围 TC77-5.0MCTTR的工作电压范围为2.7V至5.5V,这使得该芯片适合与多种电源电压兼容的设备集成设计。 #### 2. 温度测量范围 该芯片的温度测量范围为-40°C至+125°C。这一广泛的测量范围赋予了TC77-5.0MCTTR在不同环境下应用的灵活性,尤其是一些高温和低温...

产品型号TC77-5.0MCTTR的Datasheet PDF文件预览

TC77  
M
Thermal Sensor with SPIInterface  
Features  
Description  
• Digital Temperature Sensing in 5-Pin SOT-23A  
The TC77 is a serially accessible digital temperature  
sensor particularly suited for low cost and small form-  
factor applications. Temperature data is converted from  
the internal thermal sensing element and made avail-  
able at anytime as a 13-bit two’s compliment digital  
word. Communication with the TC77 is accomplished  
via a SPI and MICROWIRE compatible interface. It has  
a 12-bit plus sign temperature resolution of 0.0625°C  
per Least Significant Bit (LSb). The TC77 offers a tem-  
perature accuracy of ±1.0°C (max.) over the tempera-  
ture range of +25°C to +65°C. When operating, the  
TC77 consumes only 250 µA (typ.). The TC77’s Con-  
figuration register can be used to activate the low  
power Shutdown mode, which has a current consump-  
tion of only 0.1 µA (typ.). Small size, low cost and ease  
of use make the TC77 an ideal choice for implementing  
thermal management in a variety of systems.  
and 8-Pin SOIC Packages  
• Outputs Temperature as a 13-Bit Digital Word  
• SPI and MICROWIRE™ Compatible Interface  
• Solid State Temperature Sensing  
• ±1°C (max.) accuracy from +25°C to +65°C  
• ±2°C (max.) accuracy from -40°C to +85°C  
• ±3°C (max.) accuracy from -55°C to +125°C  
• 2.7V to 5.5V Operating Range  
• Low Power  
- 250 µA (typ.) Continuous Conversion Mode  
- 0.1 µA (typ.) Shutdown Mode  
Typical Applications  
• Thermal Protection for Hard Disk Drives and  
Other PC Peripherals  
• PC Card Devices for Notebook Computers  
• Low Cost Thermostat Controls  
• Industrial Control  
• Office Equipment  
• Cellular Phones  
Package Types  
SOT-23-5  
SOIC  
TC77  
VDD  
CS  
1
SI/O  
SCK  
VDD  
CS  
1
VSS  
TC77  
NC  
NC  
NC  
SCK  
SI/O  
• Thermistor Replacement  
VSS  
Block Diagram  
Typical Application  
V
DD  
V
DD  
Internal  
Diode  
TC77  
0.1µF  
Temperature  
Sensor  
V
DD  
®
PICmicro  
MCU  
TC77  
Manufacturer  
ID Register  
13-Bit  
Sigma Delta  
A/D Converter  
CS  
AN0  
SCK  
CS  
Serial  
Port  
SI/O  
SCK  
SI/O  
Interface  
Temperature  
Register  
SCK  
SDI  
V
SS  
V
SS  
Configuration  
Register  
2002 Microchip Technology Inc.  
DS20092A-page 1  
TC77  
PIN FUNCTION TABLE  
1.0  
ELECTRICAL  
CHARACTERISTICS  
Name  
Function  
1.1  
Absolute Maximum Ratings †  
........................................................................6.0V  
SI/O  
SCK  
Serial Data Pin  
Serial Clock  
Ground  
Chip Select (Active-Low)  
No Connection  
V
DD  
V
SS  
All inputs and outputs w.r.t. V ..... -0.3V to VDD +0.3V  
SS  
CS  
NC  
Storage temperature ..........................-65°C to +150°C  
Ambient temp. with power applied .....-55°C to +125°C  
Junction Temperature......................................... 150°C  
ESD protection on all pins:  
V
Power Supply  
DD  
Human Body Model (HBM)..............................>4 kV  
Machine Model (MM)......................................>200V  
† Notice: Stresses above those listed under "Maximum  
Ratings" may cause permanent damage to the device. This is  
a stress rating only and functional operation of the device at  
those or any other conditions above those indicated in the  
operation listings of this specification is not implied. Exposure  
to maximum rating conditions for extended periods may affect  
device reliability.  
DC CHARACTERISTICS  
Electrical Specifications: Unless otherwise noted, all parameters apply at V = 2.7V to 5.5V and  
DD  
T = -55°C to +125°C.  
A
Parameters  
Sym  
Min  
Typ  
Max  
Units  
Conditions  
Power Supply  
Operating Voltage Range  
Operating Current  
V
I
2.7  
250  
5.5  
400  
V
µA  
Note 1  
Continuous Temperature  
Conversion Mode  
DD  
DD  
Power-On Reset Threshold  
Standby Supply Current  
V
1.2  
1.6  
0.1  
2.2  
1.0  
V
µA  
VDD falling or rising edge  
Shutdown Mode  
POR  
I
DD-  
STANDBY  
Temperature to Bits Converter  
Resolution  
13  
Bits ADC LSb = 0.0625°C/bit  
(Note 4)  
Temperature Conversion Time  
t
300  
400  
ms  
CT  
Temperature Accuracy  
(Note 1)  
T
-1.0  
-2.0  
-3.0  
+1.0  
+2.0  
+3.0  
°C  
+25°C < T < +65°C  
A
ERR  
-40°C < T < +85°C  
A
-55°C < T < +125°C  
A
TC77-3.3MXX: V = 3.3V  
DD  
TC77-5.0MXX: V = 5.0V  
DD  
Note 1: The TC77-3.3MXX and TC77-5.0MXX will operate from a supply voltage of 2.7V to 5.5V. However, the tem-  
perature accuracy of the TC77-3.3MXX and TC77-5.0MXX is specified at the nominal operating voltages of  
3.3V and 5.0V, respectively. As V varies from the nominal operating value, the accuracy may be  
DD  
degraded (Refer to Figures 2-6 and 2-7).  
2: All time measurements are measured with respect to the 50% point of the signal.  
3: Load Capacitance, C = 80 pF, is used for AC timing measurements of output signals.  
L
13  
4: Resolution = Temperature Range/No. of Bits = (+255°C – -256°C) / (2  
)
Resolution = 512/8192 = 0.0625°C/Bit  
DS20092A-page 2  
2002 Microchip Technology Inc.  
TC77  
DC CHARACTERISTICS (CONTINUED)  
Electrical Specifications: Unless otherwise noted, all parameters apply at V = 2.7V to 5.5V and  
DD  
T = -55°C to +125°C.  
A
Parameters  
Sym  
Min  
Typ  
Max  
Units  
Conditions  
Digital Input/Output  
High Level Input Voltage  
V
0.7 V  
V + 0.3  
DD  
V
V
IH  
DD  
Low Level Input Voltage  
High Level Output Voltage  
Low Level Output Voltage  
Input Current  
V
-0.3  
2.4  
0.3 V  
IL  
DD  
V
V
I
I
= -400 µA  
OH  
OH  
V
0.4  
V
= +2 mA  
OL  
OL  
I
I
-1.0  
-1.0  
+1.0  
+1.0  
µA  
V
V
= GND  
= V  
DD  
IN(0),  
IN(1)  
IN  
IN  
Input Hysteresis  
Pin Capacitance  
0.35  
0.8  
20  
V
SI/O, SCK  
C , C  
pF  
IN  
OUT  
Tri-state Output Leakage  
Current  
I
-1.0  
+1.0  
µA  
V
V
= GND  
O_LEAK  
O
O
= V  
DD  
Serial Port AC Timing (Notes 2, 3)  
Clock Frequency  
f
DC  
7.0  
MHz  
ns  
CLK  
CS Fall to First Rising SCK  
Edge  
t
100  
CS-SCK  
CS Low to Data Out Delay  
SCK Fall to Data Out Delay  
t
70  
ns  
ns  
ns  
CS-SI/O  
t
100  
200  
DO  
CS High to Data Out  
Tri-state  
t
DIS  
SCK High to Data In Hold Time  
t
50  
30  
ns  
ns  
HD  
Data In Set-up Time  
t
SU  
Thermal Package Resistance  
Thermal Resistance, SOT23-5  
θJA  
θJA  
230  
163  
°C/W  
°C/W  
Thermal Resistance, 8L-SOIC  
Note 1: The TC77-3.3MXX and TC77-5.0MXX will operate from a supply voltage of 2.7V to 5.5V. However, the tem-  
perature accuracy of the TC77-3.3MXX and TC77-5.0MXX is specified at the nominal operating voltages of  
3.3V and 5.0V, respectively. As V varies from the nominal operating value, the accuracy may be  
DD  
degraded (Refer to Figures 2-6 and 2-7).  
2: All time measurements are measured with respect to the 50% point of the signal.  
3: Load Capacitance, C = 80 pF, is used for AC timing measurements of output signals.  
L
13  
4: Resolution = Temperature Range/No. of Bits = (+255°C – -256°C) / (2  
)
Resolution = 512/8192 = 0.0625°C/Bit  
2002 Microchip Technology Inc.  
DS20092A-page 3  
TC77  
Data Output Timing  
CS  
tCS-SCK  
1/fCLK  
SCK  
tCS-SI/O  
tDO  
tDIS  
HI-Z  
HI-Z  
LSb  
MSb  
SI/O  
SI/O Data Input Set-up and Hold Timing (Data is clocked on the rising edge of SCK)  
CS  
CS  
SCK  
SCK  
t
t
SU  
t
t
SU  
HD  
HD  
HI-Z  
HI-Z  
SI/O  
SI/O  
FIGURE 1-1:  
Timing Diagrams.  
DS20092A-page 4  
2002 Microchip Technology Inc.  
TC77  
2.0  
TYPICAL PERFORMANCE CURVES  
Note: The graphs and tables provided following this note are a statistical summary based on a limited number of  
samples and are provided for informational purposes only. The performance characteristics listed herein  
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified  
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.  
Note: Unless otherwise indicated, all parameters apply at VDD = 3.3V for the TC77-3.3MXX and VDD = 5.0V for the TC77-  
5.0MXX, and T = -55°C to +125°C. The TC77-3.3MXX and TC77-5.0MXX will operate from a supply voltage of 2.7V  
A
to 5.5V. However, the temperature accuracy of the TC77-3.3MXX and TC77-5.0MXX is specified at the nominal oper-  
ating voltages of 3.3V and 5.0V, respectively.  
3.5  
3
2.5  
2
0.3  
Upper Specification Limit  
1.5  
1
0.5  
0
-0.5  
-1  
-1.5  
-2  
Mean  
0.2  
0.1  
0.0  
Mean + 3V  
TC77-5.0MXX  
VDD = 5.0 V  
TC77-3.3MXX  
VDD = 3.3 V  
Mean - 3V  
-2.5  
-3  
-3.5  
Lower Specification Limit  
-55  
-25  
5
35  
65  
95  
125  
-55 -35 -15  
5
25 45 65 85 105 125  
Reference Temperature (°C)  
Temperature (°C)  
FIGURE 2-1:  
Accuracy vs. Temperature  
FIGURE 2-4:  
Shutdown Current vs.  
(TC77-XXMXX).  
Temperature.  
250  
240  
230  
220  
210  
200  
2.5  
2.0  
1.5  
1.0  
0.5  
TA = +25°C  
TA = -55°C  
TA = +125°C  
0.0  
-55  
-25  
5
35  
65  
95  
125  
2.7  
3.1  
3.5  
3.9  
4.3  
4.7  
5.1  
5.5  
Temperature (°C)  
Supply Voltage (V)  
FIGURE 2-2:  
Supply Current vs. Supply  
FIGURE 2-5:  
Power-On Reset Voltage vs.  
Voltage (TC77-XXMXX).  
Temperature (TC77-XXMXX).  
0.4  
0.3  
0.2  
0.1  
0
-0.1  
-0.2  
-0.3  
-0.4  
400  
TC77-3.3MXX  
TC77-5.0MXX  
VDD = 5.0 V  
350  
300  
250  
200  
150  
100  
50  
TA = +25°C  
TA = +85°C  
TC77-3.3MXX  
VDD = 3.3 V  
TA = -25°C  
0
-55  
-25  
5
35  
65  
95  
125  
3
3.1  
3.2  
3.3  
3.4  
3.5  
3.6  
Temperature (°C)  
Supply Voltage (V)  
FIGURE 2-3:  
Supply Current vs.  
FIGURE 2-6:  
Temperature Accuracy vs.  
Temperature.  
Supply Voltage (TC77-3.3MXX).  
2002 Microchip Technology Inc.  
DS20092A-page 5  
TC77  
50  
45  
40  
35  
30  
25  
20  
15  
10  
5
0.4  
Sample Size = 108  
TA = +25°C  
TC77-5.0MXX  
TA = +25°C  
0.3  
0.2  
0.1  
0
-0.1  
-0.2  
-0.3  
-0.4  
TA = +85°C  
TA = -25°C  
0
-1 -0.75 -0.5 -0.25  
0
0.25 0.5 0.75  
1
4.5 4.6 4.7 4.8 4.9  
5
5.1 5.2 5.3 5.4 5.5  
Supply Voltage (V)  
Temperature Error (°C)  
FIGURE 2-7:  
Temperature Accuracy vs.  
FIGURE 2-10:  
Histogram of Temperature  
Supply Voltage (TC77-5.0MXX).  
Accuracy at +25 Degrees C (TC77-XXMXX).  
35  
50  
45  
Sample Size = 108  
Sample Size = 108  
TA = +65°C  
30  
25  
20  
15  
10  
5
T
A = -55°C  
40  
35  
30  
25  
20  
15  
10  
5
0
0
-3 -2.5 -2 -1.5 -1 -0.5  
0
0.5  
1
1.5  
2
2.5  
3
-1 -0.75 -0.5 -0.25  
0
0.25 0.5 0.75  
1
Temperature Error (°C)  
Temperature Error (°C)  
FIGURE 2-8:  
Histogram of Temperature  
FIGURE 2-11:  
Histogram of Temperature  
Accuracy at -55 Degrees C (TC77-XXMXX).  
Accuracy at +65 Degrees C (TC77-XXMXX).  
40  
90  
Sample Size = 108  
80  
Sample Size = 108  
35  
T
A = +85°C  
T
A = -40°C  
70  
60  
50  
40  
30  
20  
10  
0
30  
25  
20  
15  
10  
5
0
-2  
-1.5  
-1  
-0.5  
0
0.5  
1
1.5  
2
-2  
-1.5  
-1  
-0.5  
0
0.5  
1
1.5  
2
Temperature Error (°C)  
Temperature Error (°C)  
FIGURE 2-9:  
Histogram of Temperature  
FIGURE 2-12:  
Histogram of Temperature  
Accuracy at -40 Degrees C (TC77-XXMXX).  
Accuracy at +85 Degrees C (TC77-XXMXX).  
DS20092A-page 6  
2002 Microchip Technology Inc.  
TC77  
60  
50  
40  
30  
20  
10  
0
Sample Size = 108  
A = +125°C  
T
-3 -2.5 -2 -1.5 -1 -0.5  
0
0.5  
1
1.5  
2
2.5  
3
Temperature Error (°C)  
FIGURE 2-13:  
Histogram of Temperature  
Accuracy at +125 Degrees C (TC77-XXMXX).  
2002 Microchip Technology Inc.  
DS20092A-page 7  
TC77  
3.0  
FUNCTIONAL DESCRIPTION  
The TC77 consists of a band-gap type temperature  
sensor, a 12-bit plus sign (13-bit) Sigma-Delta Analog-  
to-Digital Converter (ADC), an internal conversion  
oscillator (~30 kHz) and a serial input/output port.  
These devices feature a three-wire serial interface that  
is fully compatible with SPI and MICROWIRE specifica-  
tions and, therefore, allows simple communications  
with common microcontrollers and processors. The  
Shutdown mode can be used to reduce supply current  
for power sensitive applications. A Manufacturer’s ID  
register identifies the TC77 as a Microchip Technology  
product.  
Output  
Code  
0+0111 1101 0000  
+25°C  
+0.0625°C  
0+0001 1001 0000  
0+0000 0000 0001  
0+0000 0000 0000  
Temp  
-55°C  
0°C  
Temp  
+125°C  
1+1111 1111 1111  
1+1110 0111 0000  
-0.0625°C  
-25°C  
1+1100 1001 0000  
FIGURE 3-1:  
Temperature To Digital Transfer Function (Non-linear Scale).  
DS20092A-page 8  
2002 Microchip Technology Inc.  
TC77  
3.1  
Temperature Data Format  
3.3  
Serial Bus Interface  
A 13-bit two’s complement digital word is used to rep-  
resent the temperature. The Least Significant Bit (LSb)  
is equal to 0.0625°C. Note that the last two LSb bits (Bit  
0 and 1) are tri-stated and are represented as a logic ‘1’  
in the table. Bit 2 is set to logic ‘1’ after the completion  
of the first temperature conversion following a power-  
up or voltage reset event.  
The serial interface consists of the Chip Select (CS),  
Serial Clock (SCK) and Serial Data (SI/O) signals. The  
TC77 meets the SPI and MICROWIRE bus specifica-  
tions, with the serial interface designed to be compati-  
®
ble with the Microchip PICmicro  
microcontrollers.  
family of  
The CS input is used to select the TC77 when multiple  
devices are connected to the serial clock and data  
lines. The CS line is also used to synchronize the data,  
which is written to, or read from, the device when CS is  
equal to a logic ‘0’ voltage. The SCK input is disabled  
when CS is a logic ‘1’. The falling edge of the CS line  
initiates communication, while the rising edge of CS  
completes the communication.  
The SCK input is provided by the external microcontrol-  
ler and is used to synchronize the data on the SI/O line.  
The Temperature and Manufacturer ID registers are  
read only while the Configuration register is a read/  
write register.  
Figure 3-2 provides a timing diagram of a read opera-  
tion of the Temperature register. Communication with  
the TC77 is initiated when the CS goes to a logic ‘0’.  
The Serial I/O signal (SI/O) then transmits the first bit of  
data. The microcontroller serial I/O bus master clocks  
the data in on the rising edge of SCK. The falling edge  
of SCK is then used to clock out the rest of the data.  
After 14 bits of data (thirteen temperature bits and Bit 2)  
have been transmitted, the SI/O line is then tri-stated.  
TABLE 3-1:  
Temperature  
TC77 OUTPUT  
Binary  
Hex  
MSB / LSB  
+125°C  
+25°C  
+0.0625°C  
0°C  
-0.0625°C  
-25°C  
-55°C  
0011 1110 1000 0111 3E 87h  
0000 1100 1000 0111 0B 87h  
0000 0000 0000 1111 00 0Fh  
0000 0000 0000 0111 00 07h  
1111 1111 1111 1111 FF FFh  
1111 0011 1000 0111 F3 87h  
1110 0100 1000 0111 E4 87h  
An over-temperature condition can be determined by  
reading only the first few Most Significant Bits (MSb) of  
the temperature data. For example, the microproces-  
sor could read only the first four bits of the Temperature  
register in order to determine that an over-temperature  
condition exists.  
3.2  
Power-Up And Power-Down  
Note that CS can be taken to a logic ‘1’ at any time dur-  
ing the data transmission if only a portion of the temper-  
ature data information is required. The TC77 will  
complete the conversion, and the output shift register  
will be updated, if CS goes to the inactive state while in  
the middle of a conversion.  
Figure 3-3 provides a timing diagram of a multi-byte  
communication operation consisting of a read of the  
Temperature Data register, followed by a write to the  
Configuration register. The first 16 SCK pulses are  
used to transmit the TC77's temperature data to the  
microcontroller. The second group of 16 SCK pulses  
are used to receive the microcontroller command to  
place the TC77 either in Shutdown or Continuous Tem-  
perature Conversion mode. Note that the TC77 is in the  
Continuous Temperature Conversion mode at power-  
up.  
The data written to the TC77’s Configuration register  
should be either all 0’s or all 1’s, corresponding to  
either the Continuous Temperature Conversion or  
Shutdown mode, respectively. The TC77 is in Shut-  
down mode when Bits C0 to C7 are all equal to 1’s. The  
TC77 will be in the Continuous Conversion mode if a ‘0’  
in any bit location from C0 to C7 is written to the  
Configuration register.  
The TC77 is in the Continuous Temperature Conver-  
sion mode at power-up. The first valid temperature con-  
version will be available approximately 300 ms (refer to  
Temperature to Bits Converter” section listed in the DC  
characteristics table) after power-up. Bit 2 of the Tem-  
perature register is set to a logic ‘1’ after the completion  
of the first temperature conversion following a power-  
up or voltage reset event. Bit 2 is set to logic ‘0’ during  
the time needed to complete the first temperature con-  
version. Thus, the status of bit 2 can be monitored to  
indicate the completion of the first temperature conver-  
sion.  
A supply voltage lower than 1.6V (typ.) is considered a  
power-down state for the TC77. The device will reset  
itself and continue its normal Continuous Conversion  
mode of operation when the supply voltage rises above  
the nominal 1.6V. A minimal supply voltage of 2.7V is  
required in order to ensure proper operation of the  
device.  
2002 Microchip Technology Inc.  
DS20092A-page 9  
TC77  
CS  
tCS-SCK  
CLK  
SI/O  
1
8
13  
HI-Z  
HI-Z  
T
T
9
T
8
T
7
T
6
T
T
4
T
3
T
2
T
1
T
T
T
12 11 10  
5
0
FIGURE 3-2:  
Temperature Read Timing Diagram - (Reading only the first 13 Bits of the  
Temperature Register).  
CS  
tCS-SCK  
CLK  
1
8
1
8
1
8
1
8
HI-Z  
HI-Z  
HI-Z  
T
T
T
T
9
T
8
T
7
T
6
T
5
T
T
3
T
2
T
1
T
0
BIT  
2
C
C
C
C
C
C
C
9
C
8
C
7
C
6
C
5
C
4
C
3
C
2
C
1
C
0
SI/O  
12 11 10  
4
15 14 13 12 11 10  
TEMPERATURE REGISTER  
CONFIGURATION REGISTER  
Notes:  
Notes:  
1. Bit 2 = 0 during power-up for the first  
1. XX00 = Continuous Conversion Mode  
2. XXFF = Shutdown Mode  
temperature conversion.  
2. Bit 2 =1 after the completion of the first tem-  
perature conversion following power-up or a  
reset event.  
3. Bits 1 and 0 are “DON”T CARES”.  
FIGURE 3-3:  
Temperature Read Followed By A Write To The Configuration Register Timing.  
Diagram.  
It is recommended that the user write all ‘0’s or all ‘1’s  
to the Configuration register. While the following codes  
can be transmitted to the TC77, any other code may  
put the TC77 into a test mode reserved by Microchip for  
calibration and production verification tests.  
The following communication steps can be used to  
obtain the Manufacturer's ID and put the device into the  
Continuous Conversion mode. The Manufacturer’s ID  
register is only accessible for a read operation, if the  
TC77 is in Shutdown mode.  
• 00 hex  
• 01 hex  
• 03 hex  
• 07 hex  
• 0F hex  
• 1F hex  
• 3F hex  
• 7F hex  
• FF hex  
1. CS goes low to initiate the communication cycle.  
2. Read 16 bits of temperature data from the  
Temperature register.  
3. Write 16 bits of data (i.e. XXFF hex) to the Con-  
figuration register to enter Shutdown mode.  
4. Read the 16 bits from the Manufacturer's ID reg-  
ister (C15:C8 = 54 hex) to verify that the sensor  
is a Microchip device.  
5. Write 8 to 16 bits of data (00 or 0000 hex) to  
enter Continuous Conversion Mode.  
6. Return CS high to terminate the communication  
cycle.  
The time between a complete temperature conversion  
and data transmission is approximately 300 msec.  
DS20092A-page 10  
2002 Microchip Technology Inc.  
TC77  
4.0  
INTERNAL REGISTER  
STRUCTURE  
The TC77 Internal register structure consists of three  
registers. The Temperature and Manufacturer’s Identi-  
fication registers are read only, while the Configuration  
register is write only.  
TABLE 4-1:  
REGISTERS FOR TC77  
Bit  
Bit  
Bit  
Bit  
Bit  
Bit  
Bit Bit Bit Bit Bit Bit Bit Bit Bit Bit  
Name  
Value at Powerup/Reset  
15  
14  
13  
12  
11  
10  
9
8
7
6
5
4
3
2
1
0
CONFIG  
TEMP  
M_ID  
C15 C14 C13 C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 XXXX/XXXX 0000/0000  
T12 T11 T10  
T9  
1
T8  
0
T7  
1
T6  
0
T5  
0
T4  
0
T3  
0
T2  
0
T1  
0
T0  
0
*
x
x
x
x
1111/1111 0000/0*XX  
0
1
0
0
0101/0100 0000/00XX  
* Bit 2 = 0 during power-up; otherwise, bit 2 =1  
4.1  
Configuration Register (CONFIG)  
4.2  
Temperature Register (TEMP)  
The Configuration register is write only. This register  
selects either Shutdown, Continuous Conversion or  
Test modes:  
• C15:C0 = XXXX/XXXX 1111/1111(Shutdown  
mode)  
The Temperature register is read only and holds the  
temperature conversion data. Bits 0 and 1 are unde-  
fined and will be tri-state outputs during a read  
sequence. Bit 2 is set to a logic ‘1’ after completion of  
the first temperature conversion following a power-up  
or reset event. Bit 2 is set to a logic ‘0’ during the time  
needed to complete the first temperature conversion.  
Therefore, the status of bit 2 can be monitored to indi-  
cate that the TC77 has completed the first temperature  
conversion. Bits 15:3 contain the 13 bit two’s comple-  
ment data from the temperature conversion.  
• C15:C0 = XXXX/XXXX 0000/0000(Continuous  
Conversion mode)  
• The TC77 is in Shutdown mode when bits C0 to  
C7 are all equal to ‘1’s. The TC77 will be in the  
Continuous Conversion mode if a ‘0’ in any bit  
location from C0 to C7 is written to the Configura-  
tion register. The TC77 is in the Continuous  
Conversion mode at power-up.  
4.3  
Manufacturer’s ID Register (M_ID)  
The Manufacturer’s Identification code is contained in  
this read only register. The Manufacturer ID register is  
only available for a read operation when the TC77 is in  
Shutdown mode. The Manufacturer’s ID code is con-  
tained in bits 15:8 and is equal to 54 hex to indicate a  
Microchip device. Bits 1:0 are undefined and will be tri-  
state outputs during a read sequence, while bits 7:2 are  
set to ‘0’.  
It is recommended that the user write all ‘0’s or all ‘1’s  
to the Configuration register because other bit codes  
may put the TC77 in a test mode used for calibration  
and production verification tests. Section 3.3 lists the  
Configuration register bit codes that can be written to  
the TC77 without having the device enter a production  
test mode.  
During Shutdown mode, the serial bus is still active.  
The current consumption of the TC77 will be less than  
1 µA during the time between serial communication.  
2002 Microchip Technology Inc.  
DS20092A-page 11  
TC77  
5.0  
APPLICATION INFORMATION  
The TC77 does not require any additional components  
in order to measure temperature. However, it is recom-  
mended that a decoupling capacitor of 0.1 µF to 1 µF  
be provided between the V and V (Ground) pins (a  
DD  
SS  
high frequency ceramic capacitor should be used). It is  
necessary for the capacitor to be located as close as  
possible to the integrated circuit (IC) power pins in  
order to provide effective noise protection to the TC77.  
The TC77 measures temperature by monitoring the  
voltage of a diode located on the IC die. A low-imped-  
ance thermal path between the die and the printed cir-  
cuit board (PCB) is provided by the IC pins of the TC77.  
Therefore, the TC77 effectively monitors the tempera-  
ture of the PCB board. The thermal path between the  
ambient air is not as efficient because the plastic IC  
housing package functions as a thermal insulator.  
Thus, the ambient air temperature (assuming that a  
large temperature gradient exists between the air and  
PCB) has only a small effect on the temperature  
measured by the TC77.  
A potential for self-heating errors can exist if the TC77  
SPI communication lines are heavily loaded. Typically,  
the self-heating error is negligible because of the rela-  
tively small current consumption of the TC77. A tem-  
perature accuracy error of approximately 0.5°C will  
result from self-heating if the SPI communication pins  
sink/source the maximum current specified for the  
TC77. Therefore, to maximize the temperature accu-  
racy, the output loading of the SPI signals should be  
minimized.  
DS20092A-page 12  
2002 Microchip Technology Inc.  
TC77  
6.0  
6.1  
PACKAGING INFORMATION  
Package Marking Information  
Example:  
5-Lead SOT-23  
TC77-3.3MCTTR = CN  
TC77-5.0MCTTR = CP  
XXNN  
CP57  
8-Lead SOIC (150 mil)  
Example:  
TC77-33  
XXXXXXXX  
XXXXYYWW  
I/SN0222  
NNN  
057  
Legend: XX...X Customer specific information*  
Y
Year code (last digit of calendar year)  
Year code (last 2 digits of calendar year)  
Week code (week of January 1 is week ‘01’)  
Alphanumeric traceability code  
YY  
WW  
NNN  
Note: In the event the full Microchip part number cannot be marked on one line, it will  
be carried over to the next line thus limiting the number of available characters  
for customer specific information.  
*
Standard marking consists of Microchip part number, year code, week code, and traceability code.  
Please check with your Microchip Sales Office.  
2002 Microchip Technology Inc.  
DS20092A-page 13  
TC77  
5-Lead Plastic Small Outline Transistor (OT) (SOT23)  
E
E1  
p
B
p1  
D
n
1
α
c
A
A2  
φ
A1  
L
β
Units  
Dimension Limits  
INCHES*  
NOM  
MILLIMETERS  
MIN  
MAX  
MIN  
NOM  
5
MAX  
n
p
p1  
A
A2  
A1  
E
E1  
D
Number of Pins  
Pitch  
Outside lead pitch (basic)  
Overall Height  
Molded Package Thickness  
5
.038  
.075  
.046  
.043  
.003  
.110  
.064  
.116  
.018  
5
0.95  
1.90  
.035  
.035  
.000  
.102  
.059  
.110  
.014  
0
.057  
0.90  
0.90  
1.18  
1.10  
0.08  
2.80  
1.63  
2.95  
0.45  
5
1.45  
.051  
.006  
.118  
.069  
.122  
.022  
10  
.008  
.020  
10  
1.30  
0.15  
3.00  
1.75  
3.10  
0.55  
10  
0.20  
0.50  
10  
Standoff  
§
0.00  
2.60  
1.50  
2.80  
0.35  
0
Overall Width  
Molded Package Width  
Overall Length  
Foot Length  
Foot Angle  
Lead Thickness  
Lead Width  
L
φ
c
.004  
.014  
0
.006  
.017  
5
0.09  
0.35  
0
0.15  
0.43  
5
B
α
β
Mold Draft Angle Top  
Mold Draft Angle Bottom  
0
5
10  
0
5
10  
* Controlling Parameter  
§ Significant Characteristic  
Notes:  
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed  
.010” (0.254mm) per side.  
JEDEC Equivalent: MO-178  
Drawing No. C04-091  
DS20092A-page 14  
2002 Microchip Technology Inc.  
TC77  
8-Lead Plastic Small Outline (SN) – Narrow, 150 mil (SOIC)  
E
E1  
p
D
2
B
n
1
h
α
45°  
c
A2  
A
φ
β
L
A1  
Units  
INCHES*  
NOM  
MILLIMETERS  
Dimension Limits  
MIN  
MAX  
MIN  
NOM  
8
MAX  
n
p
A
A2  
A1  
E
E1  
D
Number of Pins  
Pitch  
Overall Height  
8
.050  
.061  
.056  
.007  
.237  
.154  
.193  
.015  
.025  
4
1.27  
.053  
.069  
1.35  
1.32  
1.55  
1.42  
0.18  
6.02  
3.91  
4.90  
0.38  
0.62  
4
1.75  
Molded Package Thickness  
Standoff  
.052  
.004  
.228  
.146  
.189  
.010  
.019  
0
.061  
.010  
.244  
.157  
.197  
.020  
.030  
8
1.55  
0.25  
6.20  
3.99  
5.00  
0.51  
0.76  
8
§
0.10  
5.79  
3.71  
4.80  
0.25  
0.48  
0
Overall Width  
Molded Package Width  
Overall Length  
Chamfer Distance  
Foot Length  
Foot Angle  
h
L
φ
c
Lead Thickness  
Lead Width  
.008  
.013  
0
.009  
.017  
12  
.010  
.020  
15  
0.20  
0.33  
0
0.23  
0.42  
12  
0.25  
0.51  
15  
B
α
β
Mold Draft Angle Top  
Mold Draft Angle Bottom  
0
12  
15  
0
12  
15  
* Controlling Parameter  
§ Significant Characteristic  
Notes:  
Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed  
.010” (0.254mm) per side.  
JEDEC Equivalent: MS-012  
Drawing No. C04-057  
2002 Microchip Technology Inc.  
DS20092A-page 15  
TC77  
NOTES:  
DS20092A-page 16  
2002 Microchip Technology Inc.  
TC77  
ON-LINE SUPPORT  
Microchip provides on-line support on the Microchip  
World Wide Web site.  
SYSTEMS INFORMATION AND  
UPGRADE HOT LINE  
The Systems Information and Upgrade Line provides  
system users a listing of the latest versions of all of  
Microchip's development systems software products.  
Plus, this line provides information on how customers  
can receive the most current upgrade kits.The Hot Line  
Numbers are:  
1-800-755-2345 for U.S. and most of Canada, and  
1-480-792-7302 for the rest of the world.  
The web site is used by Microchip as a means to make  
files and information easily available to customers. To  
view the site, the user must have access to the Internet  
®
®
and a web browser, such as Netscape or Microsoft  
Internet Explorer. Files are also available for FTP  
download from our FTP site.  
ConnectingtotheMicrochipInternetWebSite  
The Microchip web site is available at the following  
URL:  
092002  
www.microchip.com  
The file transfer site is available by using an FTP ser-  
vice to connect to:  
ftp://ftp.microchip.com  
The web site and file transfer site provide a variety of  
services. Users may download files for the latest  
Development Tools, Data Sheets, Application Notes,  
User's Guides, Articles and Sample Programs. A vari-  
ety of Microchip specific business information is also  
available, including listings of Microchip sales offices,  
distributors and factory representatives. Other data  
available for consideration is:  
• Latest Microchip Press Releases  
Technical Support Section with Frequently Asked  
Questions  
• Design Tips  
• Device Errata  
• Job Postings  
• Microchip Consultant Program Member Listing  
• Links to other useful web sites related to  
Microchip Products  
• Conferences for products, Development Systems,  
technical information and more  
• Listing of seminars and events  
2002 Microchip Technology Inc.  
DS20092A-page 17  
TC77  
READER RESPONSE  
It is our intention to provide you with the best documentation possible to ensure successful use of your Microchip prod-  
uct. If you wish to provide your comments on organization, clarity, subject matter, and ways in which our documentation  
can better serve you, please FAX your comments to the Technical Publications Manager at (480) 792-4150.  
Please list the following information, and use this outline to provide us with your comments about this document.  
To:  
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Reader Response  
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RE:  
From:  
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Telephone: (_______) _________ - _________  
FAX: (______) _________ - _________  
Application (optional):  
Would you like a reply?  
Y
N
Literature Number:  
DS20092A  
Device:  
TC77  
Questions:  
1. What are the best features of this document?  
2. How does this document meet your hardware and software development needs?  
3. Do you find the organization of this document easy to follow? If not, why?  
4. What additions to the document do you think would enhance the structure and subject?  
5. What deletions from the document could be made without affecting the overall usefulness?  
6. Is there any incorrect or misleading information (what and where)?  
7. How would you improve this document?  
DS20092A-page 18  
2002 Microchip Technology Inc.  
TC77  
PRODUCT IDENTIFICATION SYSTEM  
To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office.  
Examples:  
PART NO.  
Device  
-X.X  
X
XX  
a)  
b)  
c)  
d)  
e)  
f)  
TC77-3.3MOA: 3.3V Thermal Sensor in  
Supply Temperature Package  
SOIC package.  
Voltage Range  
TC77-5.0MOA: 5.0V Thermal Sensor in  
SOIC package.  
TC77-3.3MOATR: 3.3V Thermal Sensor in  
SOIC package, Tape and Reel.  
TC77-5.0MOATR: 5.0V Thermal Sensor in  
SOIC package, Tape and Reel.  
TC77-3.3MCTTR: 3.3V Thermal Sensor in  
SOT-23 package, Tape and Reel.  
Device:  
TC77: Thermal Sensor with SPI Interface  
Supply Voltage:  
3.3  
5.0  
=
=
VDD = Accuracy optimized for 3.3V  
DD = Accuracy optimized for 5.0V  
V
Temperature Range:  
Package:  
M
=
-55°C to +125°C  
TC77-5.0MCTTR: 5.0V Thermal Sensor in  
SOT-23 package, Tape and Reel.  
CTTR  
OA  
=
Plastic Small Outline Transistor (SOT-23),  
5-lead (Tape and Reel only)  
=
Plastic SOIC, (150 mil Body), 8-lead  
Sales and Support  
Data Sheets  
Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recom-  
mended workarounds. To determine if an errata sheet exists for a particular device, please contact one of the following:  
1. Your local Microchip sales office  
2. The Microchip Corporate Literature Center U.S. FAX: (480) 792-7277  
3. The Microchip Worldwide Site (www.microchip.com)  
Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using.  
New Customer Notification System  
Register on our web site (www.microchip.com/cn) to receive the most current information on our products.  
2002 Microchip Technology Inc.  
DS20092A-page19  
TC77  
NOTES:  
DS20092A-page 20  
2002 Microchip Technology Inc.  
Information contained in this publication regarding device  
applications and the like is intended through suggestion only  
and may be superseded by updates. It is your responsibility to  
ensure that your application meets with your specifications.  
No representation or warranty is given and no liability is  
assumed by Microchip Technology Incorporated with respect  
to the accuracy or use of such information, or infringement of  
patents or other intellectual property rights arising from such  
use or otherwise. Use of Microchip’s products as critical com-  
ponents in life support systems is not authorized except with  
express written approval by Microchip. No licenses are con-  
veyed, implicitly or otherwise, under any intellectual property  
rights.  
Trademarks  
The Microchip name and logo, the Microchip logo, KEELOQ,  
MPLAB, PIC, PICmicro, PICSTART and PRO MATE are  
registered trademarks of Microchip Technology Incorporated  
in the U.S.A. and other countries.  
FilterLab, microID, MXDEV, MXLAB, PICMASTER, SEEVAL  
and The Embedded Control Solutions Company are  
registered trademarks of Microchip Technology Incorporated  
in the U.S.A.  
dsPIC, dsPICDEM.net, ECONOMONITOR, FanSense,  
FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP,  
ICEPIC, microPort, Migratable Memory, MPASM, MPLIB,  
MPLINK, MPSIM, PICC, PICDEM, PICDEM.net, rfPIC, Select  
Mode and Total Endurance are trademarks of Microchip  
Technology Incorporated in the U.S.A. and other countries.  
Serialized Quick Turn Programming (SQTP) is a service mark  
of Microchip Technology Incorporated in the U.S.A.  
All other trademarks mentioned herein are property of their  
respective companies.  
© 2002, Microchip Technology Incorporated, Printed in the  
U.S.A., All Rights Reserved.  
Printed on recycled paper.  
Microchip received QS-9000 quality system  
certification for its worldwide headquarters,  
design and wafer fabrication facilities in  
Chandler and Tempe, Arizona in July 1999  
and Mountain View, California in March 2002.  
The Company’s quality system processes and  
procedures are QS-9000 compliant for its  
®
PICmicro 8-bit MCUs, KEELOQ® code hopping  
devices, Serial EEPROMs, microperipherals,  
non-volatile memory and analog products. In  
addition, Microchip’s quality system for the  
design and manufacture of development  
systems is ISO 9001 certified.  
2002 Microchip Technology Inc.  
DS20092A - page 21  
M
WORLDWIDE SALES AND SERVICE  
Japan  
AMERICAS  
ASIA/PACIFIC  
Microchip Technology Japan K.K.  
Benex S-1 6F  
Corporate Office  
Australia  
2355 West Chandler Blvd.  
Microchip Technology Australia Pty Ltd  
Suite 22, 41 Rawson Street  
Epping 2121, NSW  
3-18-20, Shinyokohama  
Kohoku-Ku, Yokohama-shi  
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Tel: 81-45-471- 6166 Fax: 81-45-471-6122  
Chandler, AZ 85224-6199  
Tel: 480-792-7200 Fax: 480-792-7277  
Technical Support: 480-792-7627  
Web Address: http://www.microchip.com  
Australia  
Tel: 61-2-9868-6733 Fax: 61-2-9868-6755  
Korea  
Rocky Mountain  
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Microchip Technology Consulting (Shanghai)  
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Tel: 82-2-554-7200 Fax: 82-2-558-5934  
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Room 701, Bldg. B  
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Batiment A - ler Etage  
Microchip Technology Inc.  
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Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79  
Germany  
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Toronto  
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India  
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Microchip Technology Inc.  
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Italy  
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Berkshire, England RG41 5TU  
Tel: 44 118 921 5869 Fax: 44-118 921-5820  
08/01/02  
DS20092A-page 22  
2002 Microchip Technology Inc.  
配单直通车
TC77-5.0MCTTR产品参数
型号:TC77-5.0MCTTR
是否无铅: 不含铅
是否Rohs认证: 符合
生命周期:Active
IHS 制造商:MICROCHIP TECHNOLOGY INC
零件包装代码:SOT-23
包装说明:SOT-23, 5 PIN
针数:5
Reach Compliance Code:compliant
ECCN代码:EAR99
HTS代码:8542.39.00.01
Factory Lead Time:10 weeks
风险等级:1.34
Samacsys Confidence:3
Samacsys Status:Released
Samacsys PartID:160704
Samacsys Pin Count:5
Samacsys Part Category:Integrated Circuit
Samacsys Package Category:SOT23 (5-Pin)
Samacsys Footprint Name:5-Lead (OT) SOT-23-new
Samacsys Released Date:2015-04-16 09:48:08
Is Samacsys:N
最大精度(摄氏度):3 Cel
主体宽度:1.63 mm
主体高度:1.45 mm
主体长度或直径:2.95 mm
外壳:PLASTIC
JESD-609代码:e3
安装特点:SURFACE MOUNT
位数:13
端子数量:5
最大工作电流:0.4 mA
最高工作温度:125 °C
最低工作温度:-55 °C
输出接口类型:3-WIRE INTERFACE
封装主体材料:PLASTIC/EPOXY
封装等效代码:TSOP5/6,.11,37
封装形状/形式:RECTANGULAR
传感器/换能器类型:TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
最大供电电压:5.5 V
最小供电电压:2.7 V
表面贴装:YES
端子面层:Matte Tin (Sn)
端接类型:SOLDER
Base Number Matches:1
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