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

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

Micro-computer Peripheral Device