Wuxi I-CORE Electronics Co., Ltd. AIP31621

Address: 2F Building 9, 100Di cui Road, LiYuan Development Zone, Wuxi, jiangsu, China PC: 214072

http://www.i-core.cn

RAM Mapping 32

4 LCD Controller for I/O

General Description

The AIP31621 is a 128 pattern (32×4), memory mapping, and multi-function LCD driv er.

The S/W configuration feature of the AIP31621 makes it suitable for multiple LCD

applications including LCD modules and display subsystems. Only three or four lines are

required for the interface between the host controller and the AIP31621. The AIP31621

contains a power down command to reduce power consumption.

Features

 Operating voltage: 2.4V~5.2V

 Built-in 256kHz RC oscillator

 External 32.768kHz crystal or 256kHz frequency source input

 Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications

 Internal time base frequency sources

 Two selectable buzzer frequencies (2kHz/4kHz)

 Power down command reduces power consumption

 Built-in time base generator and WDT

 Time base or WDT overflow output

 8 kinds of time base/WDT clock sources

 32×4 LCD driver

 Built-in 32×4 bit display RAM

 3-wire serial interface

 Internal LCD driving frequency source

 Software configuration feature

 Data mode and command mode instructions

 R/W address auto increment

 Three data accessing modes

 VLCD pin for adjusting LCD operating voltage

Block Diagram

Note: CS: Chip selection

BZ, BZ: Tone outputs

WR, RD, DATA: Serial interface

COM0~COM3, SEG0~SEG31: LCD outputs

IRQ: Time base or WDT overflow output