CD74HC164集成电路（IC）的移位寄存器规格书PDF中文资料

CD74HC164属于集成电路（IC）的移位寄存器。由德州仪器制造生产的CD74HC164移位寄存器移位寄存器是低级逻辑器件，通常用于在串行和并行方式之间转换数字逻辑信号形式的数据，或在数字字内移动数据位的位置。移位寄存器通常使用集成到一个设备中的一组触发器来实现，常用于集成度更高的逻辑器件，但仍可用于 I/O 扩展等应用，在这些应用中离散形式的函数可能会非常有用。

1 Features

• Buffered inputs

• Asynchronous reset

• Typical fMAX = 60MHz at VCC = 5V, CL = 15pF,

TA = 25°C

• Fanout (overtemperature range)

– Standard Outputs: 10 LSTTL loads

– Bus driver outputs: 15 LSTTL loads

• Wide operating temp range: – 55°C to 125°C

• Balanced propagation delay and transition times

• Significant power reduction compared to LSTTL

logic ICs

• HC types

– 2V to 6V operation

– High noise immunity: NIL = 30%, NIH = 30% of

VCC at VCC = 5V

• HCT types

– 4.5V to 5.5V operation

– Direct LSTTL input logic compatibility, VIL =

0.8V (Max), VIH = 2V (Min)

– CMOS input compatibility, II ≤ 1μA at VOL, VOH

2 Description

The ’HC164 and ’HCT164 are 8-bit, serial-in, parallelout,

shift registers with asynchronous reset. Data is

shifted on the positive edge of Clock (CLK). A LOW

on the RESET (CLR) pin resets the shift register and

all outputs go to the LOW state regardless of the

input conditions. Two Serial Data inputs (A and B) are

provided, either one can be used as a data enable

control.