DESCRIPTION

PT6311B is a Vacuum Fluorescent Display (VFD)

Controller driven on a 1/8 to 1/16 duty factor housed in

52-pin plastic LQFP Package. Twelve segment output

lines, 8 grid output lines, 8 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 PT6311B via a

three-line serial interface.

APPLICATION

• Microcomputer Peripheral Devices

Features

• CMOS Technology

• Low Power Consumption

• Key Scanning (12 x 4 matrix)

• Multiple Display Modes: (12 segments, 16 digits to

20 segments, 8 digits)

• 8-Step Dimming Circuitry

• LED Ports Provide (5 channels, 20mA 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

• Available in 52 pins LQFP