HD74HC323 Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD74HC323

8-bit Universal Shift/Storage Register (with 3-state Outputs)

Hitachi -> Renesas Electronics 

HD74HC323

Function Table

Inputs

Function Output

Select Control

Serial Inputs/Outputs

Outputs

Mode Clear S1 S0 G1† G2† Clock SL SR A/QA B/QB C/QC D/QD E/QE F/QF G/QG H/QH QA’ QH’

Clear L

XL L L

XXL L L L L L L L L L

L

L XL L

XXL L L L L L L L L L

Hold H

LLLL X

X X QA0 QB0 QC0 QD0 QE0 QF0 QG0 QH0 QA0 QH0

H

XXL L L

X X QA0 QB0 QC0 QD0 QE0 QF0 QG0 QH0 QA0 QH0

Shift H

L HL L

XHH

QAn QBn QCn QDn QEn QFn QGn H

QGn

Right H

L HL L

XL L

QAn QBn QCn QDn QEn QFn QGn L

QGn

Shift H

HL L L

H X QBn QCn QDn QEn QFn QGn QHn H

QBn H

Left H

HL L L

L X QBn QCn QDn QEn QFn QGn QHn L

QBn L

Load H

HHXX

XXa b c d e f

gh ah

a ... h = the level of the steady-state input at A through H, respectively. These data are loaded into the flip-

flops while the flip-flop outputs are isolated from the input/output terminals.

Pin Arrangement

S0 1

Output G1 2

controls G2 3

G/QC 4

E/QE 5

C/QC 6

A/QA 7

QA' 8

Clear 9

GND 10

S0 S1

G

SL

G/QC QH

E/QE H/QH

C/QC F/QF

A/QA D/QD

QA

B/QB

ClearSR CK

(Top view)

20 VCC

19 S1

18

Shift left

SL

17 QH'

16 H/QH

15 F/QF

14 D/QD

13 B/QB

12 Clock

11

Shift right

SR

2

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