Product Summary

The HD63645F is a control LSI for large size dot matrix liquid crystal displays. The HD63645F is software compatible with the HD6845 CRTC, since its programming method of internal registers and memory address is based on the CRTC. A display system can be easily converted from a CRT to an LCD. The HD63645F 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, non-display, and an OR function for simple superimposition of character and graphic displays.

Parametrics

HD63645F absolute maximum ratings: (1)Place of Origin: Texas, United States; (2)Brand Name: HITACHI RENESAS; (3)Model Number: HD63645F; (4)Type: ICs; (5)Application: all; (6)Supply Voltage: 2.5V to 3.6V; (7)Operating Temperature -20℃ to 125℃ ; (8)Package Type: SMD or DIP; (9)Date code: 10+; (10)Quantity: TR; (11)Type: Ics; (12)MADE: USA; (13)Description: E-components ICs; (14)E-components Type: Integrated Circuits (ICs).

Features

HD63645F features: (1)Software compatible with the HD6845 CRTC; (2)Programmable screen size: Up to 1024 dots (height), Up to 4096 dots (Width); (3)high-speed data transfer: up to 20Mbits/sec in character mode, up to 40Mbits/sec in graphic mode; (4)Selectable single or dual screen configuration; (5)programmable multiplexing duty ratio: static to 1/512 duty cycle; (6)OR function: superimposing character and graphic display; (7)Cursor with programmable height, blink rate, display position, and on/off switch; (8)Vertical smooth scrolling and horizontal scrolling by the character; (9)Refresh address output for dynamic RAM.

Diagrams

HD63645F block diagram

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