产品资讯

HD64645F

型号：HD64645F
品牌：HITACHI

批号：13+
封装：QFP
原价：30
数量：4740
PDF电子文档：

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备注：100% 全新原装 (New and original)

详细描述

HD64645F

LCTC (LCD Timing Controller)

Description

The HD64645/HD64646 LCTC is a control LSI for large size dot matrix liquid crystal displays. The LCTC

is software compatible with the HD6845 CRTC, since its programming method of internal registers and

memory addresses is based on the CRTC. A display system can be easily converted from a CRT to an

LCD.

The HD64646 LCTC is a modified version of the HD64645 LCTC with different LCD interface timing.

The LCTC offers a variety of functions and performance features such as vertical and horizontal scrolling,

and various types of character attribute functions such as reverse video, blinking, nondisplay (white or

black), and an OR function for simple superimposition of character and graphic displays. The LCTC also

provides DRAM refresh address output.

A compact LCD system with a large screen can be configured by connecting the LCTC with the

HD66110ST (column driver) and the HD66113T (common driver) by utilizing 4-bit × 2 data outputs.

Power dissipation has been lowered by adopting the CMOS process.

Features

Software compatible with the HD6845 CRTC

Programmable screen size

 Up to 1024 dots (height)

 Up to 4096 dots (width)

High-speed data transfer

 Up to 20 Mbits/s in character mode

 Up to 40 Mbits/s in graphic mode

Selectable single or dual screen configuration

Programmable multiplexing duty ratio: static to 1/512 duty cycle

Programmable character font

 1-32 dots (height)

 8 dots (width)

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