General Description

The NT3881D is a dot matrix LCD controller and driver LSI that can operate with either a 4-bit or an 8-bit microprocessor (MPU). NT3881D receives control character codes from the MPU, stores them in an internal RAM (up to 80 characters), transforms each character code into a 5 X 7, 5 X 8, or 5 X 10 dot matrix character pattern, and then displays the codes on the LCD panel. The built-in Character Generator ROM consists of 256 different character patterns.

Features

● Internal LCD drivers

16 common signal drivers

40 segment signal drivers

(can be externally extended to 400 segments using NT3882)

● Maximum display dimensions

40 characters * 2 lines or

80 characters * 1 line

● Interfaces with 4-bit or 8-bit MPU

● Versatile display functions provided on chip:

Display Clear, Cursor Home, Display ON/OFF, Cursor ON/OFF, Character Blinking, Cursor Shift, and Display Shift

● Three duty factors, selected by PROGRAM: 1/8, 11/11, and 1/16

● Displays Data RAM (DD RAM): 80 X 8 bits (displays up to 80 characters)

● Character Generator RAM (CG RAM): 64 X 8 bits for general data, 8 5 X 8 programmable dot patterns, or 4 5 X 10 programmable dot patterns

● Low voltage reset

● NOVATEK Identification code

● Bonding option for A-type and B-type waveform