HV9408_13 Datasheet, PDF (1/7 Pages) Supertex, Inc – 32-Channel Serial to Parallel Converter With High Voltage Push-Pull Outputs

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 V_PP 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. HV_OUT1 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
V_PP
HV_OUT1
HV_OUT2
•
•
•
32 Outputs Total
•
•
•
HV_OUT31
HV_OUT32
Doc.# DSFP-HV9408
B072213
Supertex inc.
www.supertex.com