HD74HCT125 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD74HCT125

Quad. Bus Buffer Gates (with 3-state outputs)

Hitachi -> Renesas Electronics 

HD74HCT125/HD74HCT126

Quad. Bus Buffer Gates (with 3-state outputs)

Description

The HD74HCT125, HD74HCT126 require the 3-state control input C to be taken high to put the output

into the high impedance condition, whereas the HD74HCT125, HD74HCT126 requires the control input to

be low to put the output into high impedance.

Features

• LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility

• High Speed Operation: tpd (A to Y) = 12 ns typ (CL = 50 pF)

• High Output Current: Fanout of 15 LSTTL Loads

• Wide Operating Voltage: VCC = 4.5 to 5.5 V

• Low Input Current: 1 µA max

• Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)

Function Table

Input

C

HCT125

HCT126

A

H

L

X

L

H

L

L

H

H

Notes: X: Irrelevant

Z: Off (High-impedance) state of a 3-state output.

Output Y

HD74HCT125

Z

L

H

HD74HCT126

Z

L

H

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