HD74LV595A Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD74LV595A

8-bit Shift Registers with 3-state Outputs

Hitachi -> Renesas Electronics 

HD74LV595A

Function Table

Inputs

SER

X

X

X

L

H

X

X

SRCLK SRCLR RCLK

G

X

X

X

H

X

X

X

L

X

L

X

X

↑

H

X

X

↑

H

X

X

↓

H

X

X

X

X

↑

X

X

X

X

↓

X

Note: H:

L:

X:

↑:

↓:

High level

Low level

Immaterial

Low to high transition

High to low transition

Function

Force outputs into high-impedance state

Enable paralle output

Reset shift register

Shift data into shift register

Shift data into shift register

Shift register remains unchanged

Transfer shift register contents to latch

register

Latch register remains unchanged

2

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