HV57708
Function Table
Inputs
LE
Outputs
Function
Data
CLK
BL
POL
DIR
Shift Reg
HV Outputs
Data Out
All O/P high
All O/P low
O/P normal
O/P inverted
X
X
X
X
L
X
X
X
X
X
X
X
X
H
H
H
H
L
L
L
L
H
H
L
X
X
X
X
X
X
X
X
X
-
-
H
-
-
-
-
-
-
-
-
-
L
H
H
H
H
H
H
H
-
No inversion
-
Inversion
_
_↑
H
H
L
L
H
L
H
*
L
Data falls
through
_
H
L
_↑
H
_
(latches
_↑
H
transparent)
_
H
X
_↑
L
L
X
X
H
Stored Data
Data stored/
latches loaded
Inversion of
stored data
X
L
H
L
X
*
-
_
DI/O1-4A
DI/O1-4A
DI/O1-4B
DI/O1-4B
_↑
H
L
H
H
H
H
H
H
H
H
H
H
L
Qn→Qn+1
Qn→Qn+1
Qn→Qn-1
Qn→Qn-1
New H or L
Previous H or L
Previous H or L
New H or L
DI/O1-4B
DI/O1-4B
DI/O1-4A
DI/O1-4A
_
_↑
I/O relation
_
_↑
L
_
_↑
H
L
Note:
* = data at the last CLK ↑
Shift Register Operation
HVOUT 32
HOUT33
DIR = H; CW (HVOUT1 → HVOUT64)
DIR = L; CCW (HVOUT64 → HVOUT1)
•
•
•
•
•
•
•
•
•
•
DIR = H
1
DIR = L
4
SR1
SR2
SR3
2
3
4
3
2
1
SR4
HVOUT2
HVOUT1
HOUT63
HOUT64
Pin
25 26 27 28
36 37 38 39
5
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