Datasheet > 74HC594BQ

74HC594BQ

更新时间： 2023-09-03 20:31:03

品牌	Logo	应用领域
安世 - NEXPERIA		/
页数	文件大小	规格书
23页	342K
描述
8-bit shift register with output registerProduction

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74HC594BQ 数据手册

Nexperia

74HC594; 74HCT594

8-bit shift register with output register

6.2. Pin description

Table 2. Pin description

Symbol

Description

Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7

15, 1, 2, 3, 4, 5, 6, 7

parallel data output

ground (0 V)

GND

Q7S

SHR

SHCP

STCP

STR

serial data output

shift register reset (active LOW)

shift register clock input

storage register clock input

storage register reset (active LOW)

serial data input

V_CC

supply voltage

7. Functional description

Table 3. Function table

H = HIGH voltage level; L = LOW voltage level; ↑ = LOW-to-HIGH transition; X = don’t care.

Function

Input

SHR STR SHCP STCP DS

Clear shift register

↑

Clear storage register

Load DS into shift register stage 0, advance previous stage data to the next stage

Transfer shift register data to storage register and outputs Qn

Shift register one count pulse ahead of storage register

H or L

↑

74HC_HCT594

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Product data sheet

Rev. 7 — 20 October 2022

5 / 23

1 2 3 456 7 8...23

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