MC74HC589ADT View Datasheet(PDF) - ON Semiconductor

Part Name

Description

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MC74HC589ADT

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

ON Semiconductor 

OUTPUT 10

ENABLE

SA 14

SHIFT

CLOCK

11

SERIAL SHIFT/ 13

PARALLEL

LOAD

12

LATCH

CLOCK

A 15

B1

PARALLEL

DATA

INPUTS

C2

D3

E4

F5

G6

H7

MC74HC589A

DQ

C

STAGE A

DQ

C

STAGE B

DQ

C

STAGE C*

STAGE D*

STAGE E*

STAGE F*

STAGE G*

STAGE H

S

D

CQ

R

S

D

CQ

R

S

D

CQ

R

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

Figure 13. Logic Detail

VCC

9

QH

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10

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