描述 Description

High-Performance Silicon-Gate CMOSThe MC74HC164A is identical in pinout to the LS164. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.The MC74HC164A is an 8-bit, serial-input to parallel-output shift register. Two serial data inputs, A1 and A2, are provided so that one input may be used as a data enable. Data is entered on each rising edge of the clock. The active-low asynchronous Reset overrides the Clock and Serial Data inputs.

特性 Features

? Output Drive Capability: 10 LSTTL Loads
? Outputs Directly Interface to CMOS, NMOS, and TTL
? Operating Voltage Range: 2 to 6 V
? Low Input Current: 1 mA
? High Noise Immunity Characteristic of CMOS Devices
? In Compliance with the Requirements Defined by JEDEC Standard No. 7A
? Chip Complexity: 244 FETs or 61 Equivalent Gates
? Pb-Free Packages are Available

簡(jiǎn)介

MC74HC164A屬于集成電路（IC）的移位寄存器。由制造生產(chǎn)的MC74HC164A移位寄存器移位寄存器是低級(jí)邏輯器件，通常用于在串行和并行方式之間轉(zhuǎn)換數(shù)字邏輯信號(hào)形式的數(shù)據(jù)，或在數(shù)字字內(nèi)移動(dòng)數(shù)據(jù)位的位置。移位寄存器通常使用集成到一個(gè)設(shè)備中的一組觸發(fā)器來(lái)實(shí)現(xiàn)，常用于集成度更高的邏輯器件，但仍可用于 I/O 擴(kuò)展等應(yīng)用，在這些應(yīng)用中離散形式的函數(shù)可能會(huì)非常有用。