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ELM382SM 参数 Datasheet PDF下载

ELM382SM图片预览
型号: ELM382SM
PDF下载: 下载PDF文件 查看货源
内容描述: 50 Hz时长间隔计数器 [50 Hz Long Interval Counter]
分类和应用: 计数器
文件页数/大小: 4 页 / 34 K
品牌: ELM [ ELM ELECTRONICS ]
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ELM382  
Absolute Maximum Ratings  
Storage Temperature....................... -65°C to +150°C  
Note:  
Stresses beyond those listed here will likely damage  
the device. These values are given as a design  
guideline only. The ability to operate to these levels  
is neither inferred nor recommended.  
Ambient Temperature with  
Power Applied....................................-40°C to +85°C  
Voltage on VDD with respect to VSS............0 to +7.5V  
Voltage on any other pin with  
respect to VSS........................... -0.6V to (VDD + 0.6V)  
Electrical Characteristics  
All values are for operation at 25°C and a 5V supply, unless otherwise noted. For further information, refer to note 1 below.  
Characteristic  
Minimum Typical  
Maximum Units  
Conditions  
Supply Voltage, VDD  
VDD rate of rise  
3.0  
5.0  
5.5  
V
V/ms  
mA  
KW  
µs  
see note 2  
VDD = 5V  
0.05  
Average Supply Current, IDD  
Internal pullup resistance  
Reset Pulse Width  
Operating Frequency  
Input current  
1.0  
2.4  
300  
10  
500  
600  
Pin 4 (reset) – see note 3  
0
50  
10K  
+0.5  
Hz  
mA  
V
Clock input only – see note 4  
-0.5  
Input low voltage  
VSS  
0.15 VDD  
VDD  
Input high voltage  
Output low voltage  
Output high voltage  
0.85 VDD  
V
0.6  
V
Current (sink) = 8.7mA  
VDD - 0.7  
V
Current (source) = 5.4mA  
Notes:  
1. This integrated circuit is produced with a Microchip Technology Inc.’s PIC12C5XX as the core embedded  
microcontroller. For further device specifications, and possibly clarification of those given, please refer to the  
appropriate Microchip documentation.  
2. This specification must be met in order to ensure that a correct power on reset occurs. It is quite easily  
achieved using most common types of supplies, but may be violated if one uses a slowly varying supply  
voltage, as may be obtained through direct connection to solar cells, or some charge pump circuits.  
3. The value of the internal pullup resistance is both supply and temperature dependent.  
4. This refers to the current flowing through the protection diodes when large voltages are applied to the clock  
input (pin 5) through a current limiting resistance. Currents quoted are the maximum continuous.  
3 of 4  
ELM382DSA  
Elm Electronics – Circuits for the Hobbyist  
< http://www.elmelectronics.com/ >