HD64646

更新时间： 2024-01-14 04:34:07

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HD64646 数据手册

HD64645/HD64646

LCTC (LCD Timing Controller)

ADE-207-276(Z)

'99.9

Rev. 0.0

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)

12 3 4 5 6 7...50

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型号	品牌	获取价格	描述	数据表
HD64646F	ETC	获取价格	Peripheral IC
HD64646FP	ETC	获取价格	LCD Controller
HD64646FS	HITACHI	获取价格	LCTC (LCD Timing Controller)
HD647180	HITACHI	获取价格	ELECTRICAL CHARACTERISTICS
HD647180X	ETC	获取价格	8-Bit Microcontroller
HD647180X-4	HITACHI	获取价格	ELECTRICAL CHARACTERISTICS
HD647180X-6	HITACHI	获取价格	ELECTRICAL CHARACTERISTICS
HD647180X-8	HITACHI	获取价格	ELECTRICAL CHARACTERISTICS
HD647180XCG-4	HITACHI	获取价格	8-BIT, UVPROM, 4MHz, MICROCONTROLLER, CQCC84, GLASS SEALED, CERAMIC, LCC-84
HD647180XCG-6	ETC	获取价格	8-Bit Microcontroller