HD74HC597P 查看數據表（PDF） - Renesas Electronics

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产品描述 (功能)

生产厂家

HD74HC597P

8-bit Latch / Shift Register

Renesas Electronics 

HD74HC597

Test Circuit

VCC

Input

Pulse Generator

Zout = 50 Ω

Input

Pulse Generator

Zout = 50 Ω

VCC

Output

SCLR

QH'

SLoad

RCK

A to H

SER

SCK

CL = 50pF

Note : 1. CL includes probe and jig capacitance.

Waveforms

• Waveform – 1 (RCK to QH')

tr

tf

90 %

VCC

Input RCK

50 % 50 %

50 %

10 %

tw(H)

10 %

tw(L)

0V

tPLH

tPHL

90 %

90 %

VOH

Output QH'

50 %

50 %

10 %

10 %

VOL

tTLH

tTHL

Note : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, tr ≤ 6 ns, tf ≤ 6 ns

• Waveform – 2 (RCK to Q)

tr

tf

90 %

VCC

Input SCK

50 % 50 %

50 %

10 %

tw(H)

10 %

tw(L)

0V

tPLH

tPHL

90 %

90 %

VOH

Output QH'

50 %

50 %

10 %

10 %

VOL

tTLH

tTHL

Note : 1. Input waveform : PRR ≤ 1 MHz, duty cycle 50%, tr ≤ 6 ns, tf ≤ 6 ns

Rev.2.00 Mar 30, 2006 page 5 of 9

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