HV518
32-Channel Vacuum-Fluorescent
Display Driver
Features
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32 output lines
90V output swing
Active pull-down
Latches on all outputs
Up to 6MHz @ V
DD
= 5.0V
-40°C to +85°C operation
General Description
The HV518 is designed for vacuum fluorescent or DC plasma
applications, where it can serve as a segment, digit or matrix
display driver. Each device has 32 outputs, 32 latches and a
32-bit cascadable shift register.
Serial data enters the shift register on the LOW-to-HIGH
transition of the clock input. With latch enable (LE) HIGH,
parallel data is transferred to the output buffers through a
32-bit latch. When LE is low the data is stored in the latch.
When STROBE is LOW, all outputs are enabled; if STROBE
is HIGH, all outputs are LOW.
Applications
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Vacuum flourescent displays
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DC plasma displays
Block Diagram
LE
STB
VPP
HVOUT1
DIN
CLK
DOUT
HVOUT32
32-Bit
Shift
Register
Latches
1
SUPERTEX [ Supertex, Inc ]
