74HC7597 데이터 시트보기 (PDF) - Philips Electronics

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74HC7597

8-bit shift register with input latches

Philips Electronics 

Philips Semiconductors

8-bit shift register with input latches

Product specification

74HC/HCT7597

FUNCTION TABLE

LE SHCP PL MR

LX

XX

HX

XX

FUNCTION

data enabled to input latches (transparent)

data stored into latches (non-transparent)

XX

LH

data transferred from input latches to shift register

XX

XX

X↑

LL

HL

HH

invalid logic, state of shift register indeterminate when signals removed

shift register cleared

shift register clocked Qn = Qn-1, Q0 = DS

Notes

1. H = HIGH voltage level

L = LOW voltage level

X = don’t care

↑ = LOW-to-HIGH CP transition

Fig.4 Functional diagram.

December 1990

4

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