Princeton Technology Corp.
VFD Driver/Controller IC
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT6312
DESCRIPTION
PT6312 is a Vacuum Fluorescent Display (VFD) Controller driven on a 1/4 to 1/11 duty factor. Eleven
segment output lines, 6 grid output lines, 5 segment/grid output drive lines, one display memory, control
circuit, key scan circuit are all incorporated into a single chip to build a highly reliable peripheral device
for a single chip micro computer. Serial data is fed to PT6312 via a three-line serial interface. It is
housed in a 44-pin plastic QFP or LQFP Package and is functionally compatible with uD16312.
FEATURES
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CMOS Technology
Low Power Consumption
Key Scanning (6 x 4 matrix)
Multiple Display Modes: (11 segments, 11 digits to 16 segments, 6 digits)
8-Step Dimming Circuitry
LED Ports Provided (4 channels, 20 mA max.)
4- Bits General Purpose Input Ports Provided
Serial Interface for Clock, Data Input, Data Output, Strobe Pins
No External Resistors Needed for Driver Outputs
Functional Compatibility with uD16312
Available in 44-pin, QFP or LQFP Package
APPLICATION
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Micro-computer Peripheral Device
PT6312 v1.8
Page 1
Updated Sept. 2000
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