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  Microchip Technology Semiconductor Electronic Components Datasheet  

HV5812 Datasheet

20-Channel Serial-Input Vacuum Fluorescent Display Driver

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HV5812
20-Channel Serial-Input Vacuum Fluorescent Display Driver for Anode or Grid
Features
• HVCMOS® Technology for High Performance
• Operating Voltage of up to 80V
• High-speed Source Driver
• 5V CMOS Logic Circuitry
• Up to 5 MHz Data Input Rate
• Excellent Noise Immunity
• Flexible High-voltage Supplies
Applications
• Display Driver
General Description
The HV5812 is a 20-channel serial-input vacuum
fluorescent display driver. It combines a 20-bit CMOS
shift register, data latches and control circuitry with
high-voltage MOSFET outputs. The HV5812 is
primarily designed for vacuum fluorescent displays.
The CMOS shift register and latches allow direct
interfacing with microprocessor-based systems. Data
input rates are typically over 5 MHz with 5V logic
supply. Especially useful for interdigit blanking, the
blanking input disables the output source drives and
turns on the sink drivers. Using with TTL may require
external pull-up resistors to ensure an input logic high.
Package Types
28-lead PDIP
(Top view)
1 28
28-lead PLCC
(Top view)
4 1 28 26
28-lead SOW
(Top view)
1 28
See Table 2-1 for pin information.
2016 Microchip Technology Inc.
DS20005629A-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

HV5812 Datasheet

20-Channel Serial-Input Vacuum Fluorescent Display Driver

No Preview Available !

HV5812
Functional Block Diagram
BL
STROBE
VDD
DATA IN
CLK
DATA OUT
GND
20-bit
Shift
Register
20-bit
Latch
VPP
HVOUT1
HVOUT2
HVOUT3
HVOUT20
DS20005629A-page 2
2016 Microchip Technology Inc.


Part Number HV5812
Description 20-Channel Serial-Input Vacuum Fluorescent Display Driver
Maker Microchip
Total Page 16 Pages
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