hv57908 Supertex, Inc., hv57908 Datasheet - Page 5

• Manufacturer Part Number: hv57908
• Description: 8mhz, 64-channel Serial To Parallel Converter With Push-pull Outputs
• Manufacturer: Supertex, Inc.

Function Table
Shift Register Operation
Note:
latches loaded
O/P inverted
transparent)
Data stored/
All O/P high
O/P normal
All O/P low
I/O relation
* = dependent upon previous stage’s state
Function
Data falls
through
(latches
Data
D
D
H
H
X
X
X
X
X
X
L
L
I/OA
I/OB
CLK
HVOUT32
HVOUT2
HVOUT1
_↑
_↑
_↑
_↑
_↑
_↑
X
X
X
X
X
X
_
_
_
_
_
_
•
•
•
•
•
Pin
LE
DIR = H; CW (HVOUT 1 → HVOUT64)
DIR = L; CCW (HVOUT64 → HVOUT1)
H
H
H
H
X
X
X
X
X
X
L
L
Inputs
DIOA
25
BL
H
H
H
H
H
H
H
H
X
X
DIR = H
L
L
POL
SR
5
H
H
H
H
H
X
X
L
L
L
L
L
DIR = L
DIR
X
X
X
X
X
X
X
X
X
X
H
L
DIOB
39
Shift Reg
Q
Q
n
n
→Q
→Q
H
H
L
L
*
*
-
-
-
-
HVOUT33
HVOUT63
HVOUT64
n+1
n-1
•
•
•
•
•
No inversion
HV Outputs
Stored Data
Inversion of
stored data
Inversion
Outputs
H
H
H
L
L
L
-
-
HV57908
Data Out
D
D
I/OB
-
-
-
-
-
-
-
-
-
-
I/OA