描述 Description

The 74HC164 is identical in pinout to the LS/ALS164. The Device inputs are compatible with standard CMOS outputs, with pullup resistors, they are compatible with LS/ALSTTL outputs.The 74HC164 is an 8-bit, serial-itnput oparallel-output shift register. Two serial data inputs, A1 and A2, are provided so that one input May be used as a data enab le. Data is entered on each rising Edge of the clock. The activelow asynchronous Reset overrides the Clock and Serial Data inputs.

特性 Features

? Outputs DirectlyInterface to CMOS, NMOS, and TTL

? Operating Voltage Range: 2.0 to 6.0 V

? LowInput Current: 1.0μA

? High Noise Immunity Characteristic of CMOS Devices