GENERAL DESCRIPTION

The W66880CF is a VFD (Vacuum Fluorescent Display) controller/ driver. It can be programmed to drive a VFD with 4 grids by 16 segments to 8 grids by 14 segments. The W66880CF also includes a 24-key key scan circuit and four LED ports and four general purpose input ports. Data communication with the W66880CF is via a serial interface.

FEATURES

• Flexible display modes (4 to 8 grids)

- 4 grids x 16 segments to 8 grids x 14 segments

• 6 x 4 matrix key scanning

• 8 steps dimming circuit

• High voltage output (VDD - VEE = 30V max)

• Four 15 mA LED ports

• Four general-purpose input port

• Internal driver output pull-down resisters

• Only one external resister is needed for the on chip oscillator

• Simple serial interface

• 44-pin plastic QFP package

APPLICATIONS

VFD display driving and panel function control