HV9708 데이터 시트보기 (PDF) - Supertex Inc

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HV9708

32-Channel Serial To Parallel Converter With High Voltage Push-Pull Outputs

Supertex Inc 

Functional Block Diagram

VPP

Polarity

Blanking

Latch Enable

Data Input

Clock

Data Out

32-Bit

Shift

Register

Latch

Latch

Latch

Latch

HV9708/HV9808

HVOUT1

HVOUT2

(Outputs 3 to 30

not shown)

HVOUT31

HVOUT32

Function Table

Inputs

Function

Data

CLK

LE

BL

All on

X

X

X

L

All off

X

X

X

L

Invert mode

X

X

L

H

Load S/R

H or L

↑

L

H

Load

latches

X

H or L

↑

H

X

H or L

↑

H

Transparent

L

↑

H

H

latch mode

H

↑

H

H

Notes:

H = high level, L = low level, X = irrelevant, ↑ = low-to-high transition.

* = dependent on previous stage’s state before the last CLK or last LE high.

POL

L

H

L

H

H

L

H

H

Shift Reg

1 2…32

* *…*

* *…*

* *…*

H or L *…*

* *…*

* *…*

L *…*

H *…*

Outputs

HV Outputs

1 2…32

H H…H

L

L…L

*

*…*

*

*…*

*

*…*

*

*…*

L

*…*

H

*…*

Data Out

*

*

*

*

*

*

*

*

*

4

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