upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 809

Manufacturer Part Number

upd70f3422gj-gae-qs-ax

32-bit Single-chip Microcontroller

Manufacturer

Renesas Electronics Corporation.

Chapter 22 LCD Controller/Driver (LCD-C/D)

The LCD Controller/Driver is provided with the µPD70(F)3420, µPD70(F)3421,

µPD70(F)3422 and µPD70F3423 microcontrollers only.

This LCD Controller/Driver is suitable for LC displays with up to 160 segments.

The supported addressing method of the LCD is multiplex addressing.

22.1 Overview

The LCD Controller/Driver generates the signals that are necessary for driving

an LCD panel.

Features summary

The LCD Controller/Driver provides:

• Maximum of 40 segment signal outputs (SEG0 to SEG39)

• 4 common signal outputs (COM0 to COM3)

• Display mode: 1/4 duty (1/3 bias)

• Wide range of selectable frame frequencies

• Edge enhancement

Preliminary User’s Manual U17566EE1V2UM00