TECHNICAL DATA

Rev. 00

8-Bit Serial-Input/Serial or

Parallel-Output Shift Register

with Latched 3-State Outputs

High-Performance Silicon-Gate CMOS

The IN74HC595A is identical in pinout to the LS/ALS595. The device

inputs are compatible with standard CMOS outputs; with pullup resistors,

they are compatible with LS/ALSTTL outputs.

The IN74HC595A consists of an 8-bit shift register and an 8-bit D-

type latch with three-state parallel outputs. The shift register accepts serial

data and provides a serial output. The shift register also provides parallel

data to the 8-bit latch. The shift register and latch have independent clock

inputs. This device also has an asynchronous reset for the shift register.

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Outputs Directly Interface to CMOS, NMOS, and TTL

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Operating Voltage Range: 2.0 to 6.0 V

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Low Input Current: 1.0 µA

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High Noise Immunity Characteristic of CMOS Devices

IN74HC595A

ORDERING INFORMATION

IN74HC595AN Plastic

IN74HC595AD SOIC

PIN ASSIGNMENT

LOGIC DIAGRAM

PIN 8 = GND