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PDF HV9408 Data sheet ( Hoja de datos )
| Número de pieza | HV9408 | |
| Descripción | 32-Channel Serial to Parallel Converter | |
| Fabricantes | Supertex Inc | |
| Logotipo |  |
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Supertex inc.
HV9408
32-Channel Serial to Parallel Converter
With High Voltage Push-Pull Outputs
Features
►►Processed with HVCMOS® technology
►►Low power level shifting
►►Shift register speed 8.0MHz
►►Latched data outputs
►►5.0V CMOS compatible inputs
►►Diode to VPP allows efficient power recovery
General Description
The HV9408 is a low voltage serial to high voltage parallel
converter with push-pull outputs. This device has been designed
for use as a driver for AC-electroluminescent displays. It can also
be used in any application requiring multiple output, high voltage
current sourcing and sinking capabilities such as driving plasma
panels, vacuum fluorescent, or large matrix LCD displays.
This device consists of a 32-bit shift register, 32 latches, and
control logic to enable outputs. HVOUT1 is connected to the first
stage of the shift register through the Output Enable logic. Data
is shifted through the shift register on the low to high transition of
the clock. The HV9408 shifts in the counter-clockwise direction
when viewed from the top of the package. A data output buffer is
provided for cascading devices. This output reflects the current
status of the last bit of the shift register (32). Operation of the shift
register is not affected by the LE (latch enable) or the OE (output
enable) inputs. Transfer of data from the shift register to the latch
occurs when the LE input is high. The data in the latch is retained
when LE is low.
Block Diagram
Output Enable
Latch Enable
DATA INPUT
CLOCK
32 bit
Static Shift
Register
32 Latches
DATA OUT
VPP
HVOUT1
HVOUT2
•
•
•
32 Outputs Total
•
•
•
HVOUT31
HVOUT32
Doc.# DSFP-HV9408
B072213
Supertex inc.
www.supertex.com
1 page  
Function Tables
Data Input
H
L
X
CLK
No
= low to high level transition.
Data Output
H
L
No change
Data Input
X
X
H
L
LE
X
L
H
H
HV9408
OE HV Output
L All HVOUT = low
H Previous latched data
HH
HL
Pin Description
Pin Function
1 HVOUT16
2 HVOUT17
3 HVOUT18
4 HVOUT19
5 HVOUT20
6 HVOUT21
7 HVOUT22
8 HVOUT23
9 HVOUT24
10 HVOUT25
11 HVOUT26
12 HVOUT27
13 HVOUT28
14 HVOUT29
15 HVOUT30
16 HVOUT31
17 HVOUT32
18 Data Out
19 N/C
20 N/C
21 N/C
22 CLK
23 GND
24 VPP
25 VDD
Description
High voltage outputs.
High voltage push-pull outputs, which, depending on controlling low voltage data, can drive
loads either to a GND, or to VPP rail levels.
Serial data output
Data output for cascading to the data input of the next device.
No connect.
Data shift register clock.
Input are shifted into the shift register on the positive edge of the clock.
Logic and high voltage ground.
High voltage power rail.
Low voltage logic power rail.
Doc.# DSFP-HV9408
B072213
Supertex inc.
5 www.supertex.com
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet HV9408.PDF ] | |
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