HV232GA 参数 Datasheet PDF下载

HV232

Truth Table

D0

L

H

L

H

L

H

L

H

L

H

L

H

L

H

L

H

X

X

D1

D2

D3

D4

D5

D6

D7

LE

L

L

L

L

L

L

L

L

L

L

L

L

L

L

L

L

H

X

CL

L

L

L

L

L

L

L

L

L

L

L

L

L

L

L

L

L

H

SW0 SW1 SW2 SW3 SW4 SW5 SW6 SW7

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

HOLD PREVIOUS STATE

OFF OFF OFF OFF OFF OFF OFF OFF

X

X

Notes:

X

X

X

X

X

X

X

X

X

X

X

X

1. The eight switches operate independently.

2. Serial data is clocked in on the L→ H transition CLK.

3. The switches go to a state retaining their present condition at the rising edge of LE. When LE is low the shift

register data flows through the latch.

4. D

OUT

is high when switch 7 is on.

5. Shift register clocking has no effect on the switch states if LE is H.

6. The clear input overrides all other inputs.

7