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SN74CBT3257PWR 参数 Datasheet PDF下载

SN74CBT3257PWR图片预览
型号: SN74CBT3257PWR
PDF下载: 下载PDF文件 查看货源
内容描述: 4位1 - OF- 2 FET复用器/解复用器 [4-BIT 1-OF-2 FET MULTIPLEXER/DEMULTIPLEXER]
分类和应用: 解复用器
文件页数/大小: 12 页 / 360 K
品牌: TI [ TEXAS INSTRUMENTS ]
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ꢀꢁ ꢂꢃ ꢄꢅ ꢆꢇ ꢈꢉ ꢂ  
ꢃ ꢊꢅꢋ ꢆ ꢌ ꢊꢍ ꢎꢊ ꢈ ꢎ ꢏꢆ ꢐ ꢑꢒꢆ ꢋꢓ ꢒꢏ ꢔꢏꢕꢖ ꢗꢏꢐ ꢑꢒꢆꢋ ꢓ ꢒꢏ ꢔꢏ ꢕ  
SCDS017M − MAY 1995 − REVISED JANUARY 2004  
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)  
Supply voltage range, V  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V  
CC  
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V  
I
Continuous channel current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA  
Input clamp current, I (V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −50 mA  
K
I/O  
Package thermal impedance, θ (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W  
JA  
(see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C/W  
(see Note 2): DBQ package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90°C/W  
(see Note 2): PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108°C/W  
(see Note 3): RGY package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39°C/W  
Storage temperature range, T  
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C  
stg  
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and  
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not  
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.  
NOTES: 1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.  
2. The package thermal impedance is calculated in accordance with JESD 51-7.  
3. The package thermal impedance is calculated in accordance with JESD 51-5.  
recommended operating conditions (see Note 4)  
MIN  
4
MAX  
UNIT  
V
V
V
V
Supply voltage  
5.5  
CC  
IH  
IL  
High-level control input voltage  
Low-level control input voltage  
Operating free-air temperature  
2
V
0.8  
85  
V
T
A
−40  
°C  
NOTE 4: All unused control inputs of the device must be held at V  
or GND to ensure proper device operation. Refer to the TI application report,  
CC  
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.  
electrical characteristics over recommended operating free-air temperature range (unless  
otherwise noted)  
PARAMETER  
TEST CONDITIONS  
I = −18 mA  
MIN TYP  
MAX  
−1.2  
1
UNIT  
V
V
V
V
V
V
= 4.5 V,  
= 5.5 V,  
= 5.5 V,  
= 5.5 V,  
IK  
CC  
CC  
CC  
CC  
I
I
I
V = 5.5 V or GND  
I
µA  
µA  
mA  
pF  
I
I
O
= 0,  
V = V  
I CC  
or GND  
3
CC  
§
I  
CC  
Control inputs  
One input at 3.4 V,  
Other inputs at V  
CC  
or GND  
2.5  
C
Control inputs V = 3 V or 0  
I
3.5  
6.5  
4
i
A port  
C
V
O
= 3 V or 0,  
pF  
OE = V  
CC  
io(OFF)  
B port  
V
= 4 V,  
CC  
V = 2.4 V,  
I
I = 15 mA  
I
14  
20  
TYP at V  
= 4 V  
CC  
I = 64 mA  
I
5
5
7
7
r
on  
V = 0  
I
I = 30 mA  
I
V
CC  
= 4.5 V  
V = 2.4 V,  
I
I = 15 mA  
I
10  
15  
§
All typical values are at V  
CC  
= 5 V (unless otherwise noted), T = 25°C.  
This is the increase in supply current for each input that is at the specified TTL voltage level, rather than V  
A
or GND.  
CC  
Measured by the voltage drop between the A and the B terminals at the indicated current through the switch. On-state resistance is determined  
by the lowest voltage of the two (A or B) terminals.  
3
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