MC74HC589A(2000) 查看數據表（PDF） - ON Semiconductor

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MC74HC589A
(Rev.:2000)

8-Bit Serial or Parallel-Input/Serial-Output Shift Register with 3-State Output

ON Semiconductor 

OUTPUT ENABLE 10

SA 14

SHIFT CLOCK 11

SERIAL SHIFT/ 13

PARALLEL LOAD

LATCH CLOCK 12

A 15

B1

PARALLEL

DATA

INPUTS

C2

D3

E4

F5

G6

H7

MC74HC589A

LOGIC DETAIL

DQ

C

DQ

C

STAGE A

STAGE B

DQ

C

STAGE C*

STAGE D*

STAGE E*

STAGE F*

STAGE G*

STAGE H

*NOTE: Stages C thru G (not shown in detail) are identical to stages A and B above.

S

D

CQ

R

DS

CQ

R

DS

CQ

R

VCC

9

QH

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9

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