Overview

The LC75863E and LC75863W are 1/3 duty LCD display drivers that can directly drive up to 75 segments and can control up to four general-purpose output ports. These products also incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.

特性 Features

? Key input function for up to 30 keys (A key scan is

performed only when a key is pressed.)

? 1/3duty - 1/2bias and 1/3duty - 1/3bias drive schemes

can be controlled from serial data (up to 75 segments).

? Sleep mode and all segments off functions that are

controlled from serial data.

? Segment output port/general-purpose output port

function switching that is controlled from serial data.

? Serial data I/O supports CCB format communication

with the system controller.

? Direct display of display data without the use of a

decoder provides high generality.

? Independent VLCD for the LCD driver block (VLCD can

be set to in the range VDD-0.5 to 6.0 volts.)

? Provision of an on-chip voltage-detection type reset

circuit prevents incorrect displays.

? RC oscillator circuit.