HV57708DG Supertex Inc, HV57708DG Datasheet - Page 4

• Manufacturer Part Number: HV57708DG
• Description: 32 MHz/ 64-Channel Serial To Parallel Converter With Push-Pull Outputs
• Manufacturer: Supertex Inc

Functional Block Diagram
Note: Each SR (shift register) provides 16 outputs. SR1 supplies every fourth output starting with 1; SR2 supplies every fourth output with 2, etc.
Function Table
Note:
All O/P High
All O/P Low
O/P Normal
O/P Inverted
Data Stored/
Latches Loaded
Data Falls
Through
(Latches
Transparent)
I/O Relation
Function
*
= dependent on previous stage’s state. See Pin configuration for D
D
D
D
D
I/O
I/O
I/O
I/O
Data
X
X
X
X
H
H
X
X
L
L
1-4A
1-4A
1-4B
1-4B
CLK
DIR
CLK
X
X
X
X
↑
↑
X
X
↑
↑
↑
↑
↑
↑
D 1
D 4
D 4
D 1
SR4
O
O
I
I
D 2
D 3
D 3
D 2
SR3
O
O
I
I
LE
X
X
X
H
H
H
H
H
H
X
L
L
L
L
D 3
D 2
D 2
D 3
Inputs
SR2
O
I
O
I
D 4
D 1
D 1
D 4
SR1
O
I
O
I
BL
H
H
H
H
H
H
H
H
H
H
H
H
L
L
V
DD
IN
and D
LE
OUT
POL
4
GND
H
H
H
H
H
H
H
H
H
L
L
L
L
L
pin designation for CW and CCW shift.
BL
DIR
H
H
X
X
X
X
X
X
X
X
X
X
L
L
POL
Q
Q
Shift Reg
Q
Q
n
n
n
n
→ Q
→ Q
→ Q
→ Q
H
H
L
L
*
*
V
PP
n +1
n +1
n -1
n -1
HV
HV
HV
HV
HV
HV
HV
HV
HV Outputs
No inversion
Stored Data
Stored Data
Inversion of
New H or L
New H or L
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
Inversion
Previous
Previous
Outputs
10
11
12
H or L
H or L
61
62
63
64
1
5
9
•
•
•
2
6
•
•
•
3
7
•
•
•
4
8
•
•
•
H
H
H
L
L
L
D
D
D
D
Data Out
I/O
I/O
I/O
I/O
1 – 4B
1 – 4B
1 – 4A
1 – 4A
HV57708