74HCT164

更新时间： 2024-09-25 22:56:19

品牌	Logo	应用领域
恩智浦 - NXP		移位寄存器
页数	文件大小	规格书
24页	128K
描述
8-bit serial-in, parallel-out shift register

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74HCT164 数据手册

74HC164; 74HCT164

8-bit serial-in, parallel-out shift register

Rev. 03 — 4 April 2005

Product data sheet

1. General description

The 74HC164; 74HCT164 are high-speed Si-gate CMOS devices and are pin compatible

with Low power Schottky TTL (LSTTL). They are speciﬁed in compliance with JEDEC

standard no. 7A.

The 74HC164; 74HCT164 are 8-bit edge-triggered shift registers with serial data entry

and an output from each of the eight stages. Data is entered serially through one of two

inputs (DSA or DSB); either input can be used as an active HIGH enable for data entry

through the other input. Both inputs must be connected together or an unused input must

be tied HIGH.

Data shifts one place to the right on each LOW-to-HIGH transition of the clock (CP) input

and enters into Q0, which is the logical AND of the two data inputs (DSA and DSB) that

existed one set-up time prior to the rising clock edge.

A LOW level on the master reset (MR) input overrides all other inputs and clears the

2. Features

■ Gated serial data inputs

■ Asynchronous master reset

■ Complies with JEDEC standard no. 7A

■ ESD protection:

◆ HBM EIA/JESD22-A114-B exceeds 2000 V

◆ MM EIA/JESD22-A115-A exceeds 200 V.

■ Multiple package options

■ Speciﬁed from −40 °C to +85 °C and −40 °C to +125 °C.

3. Quick reference data

Table 1:

Quick reference data

GND = 0 V; T_amb= 25 °C; t_r= t_f= 6 ns.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Type 74HC164

t_PHL, t_PLH

propagation delay

CP to Qn

C_L= 15 pF;

_CC= 5 V

C_L= 15 pF;

_CC= 5 V

MR to Qn

12 3 4 5 6 7...24

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