HD74HC257 查看數據表（PDF） - Hitachi -> Renesas Electronics

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产品描述 (功能)

生产厂家

HD74HC257

Quad. 2-to-1-line Data Selectors/Multiplexers (with noninverted 3-state outputs)

Hitachi -> Renesas Electronics 

HD74HC257

Pin Arrangement

Select 1

1A 2

1B 3

1Y 4

2A 5

2B 6

2Y 7

GND 8

S

1A OC

1B 4A

1Y 4B

2A 4Y

2B 3A

2Y 3B

3Y

(Top view)

16 VCC

15

Output

control

14 4A

13 4B

12 4Y

11 3A

10 3B

9 3Y

Absolute Maximum Ratings

Item

Supply voltage range

Input voltage

Output voltage

DC current drain per pin

DC current drain per VCC, GND

DC input diode current

DC output diode current

Power dissipation per package

Storage temperature

Symbol

VCC

VIN

VOUT

I OUT

ICC, IGND

I IK

I OK

PT

Tstg

Rating

–0.5 to +7.0

–0.5 to VCC + 0.5

–0.5 to VCC + 0.5

±35

±75

±20

±20

500

–65 to +150

Unit

V

V

V

mA

mA

mA

mA

mW

°C

2

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