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Part Name
Description
HV5812P View Datasheet(PDF) - Supertex Inc
Part Name
Description
Manufacturer
HV5812P
20-Channel Serial-Input Vacuum-Fluorescent Display Driver for Anode/Grid
Supertex Inc
HV5812P Datasheet PDF : 6 Pages
1
2
3
4
5
6
Timing Diagram
CLK
t
pwclk
50%
Data In
t
su
t
pwd
t
h
Strobe
t
cks
50%
t
pws
HV5812
Blanking
HV
OUT
Block Diagram
Blanking
Strobe
V
DD
Data In
Clock
Data Out
GND
20-bit
Shift
Register
50%
t
PHL
t
PLH
t
sto
90% 90% 50%
10%
10%
t
r
t
f
20-bit
Latch
V
PP
HV
OUT
1
HV
OUT
2
HV
OUT
3
HV
OUT
20
Function Table
Serial
Data
Input
H
L
X
Clock
Input
L to H
L to H
H to L
Note:
L = Low Logic Level
Shift Register Contents
I
1
I
2
H R
1
L R
1
RR
1
2
XX
P
1
P
2
I
3
... I
N-1
R
2
... R
N-2
R
2
... R
N-2
R ... R
3
N-1
X ... X
I
N
R
N-1
R
N-1
R
N
X
P
3
... P
N-1
P
N
Serial
Data
Output
R
N-1
R
N-1
R
N
X
P
N
Strobe
Input
L
H
Latch Content
I
1
I
2
I
3
... I
N-1
I
N
R
1
R
2
R
3
... R
N-1
R
N
P
1
P
2
P
3
... P
N-1
P
N
X X X ... X X
H = High Logic Level
X = Irrelevant
P= Present State
R = Previous State
4
Blanking
Output Content
I
1
I
2
I
3
... I
N-1
I
N
L
P
1
P
2
P
3
... P
N-1
P
N
H
L L L ... L L
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