HD6845SP Renesas Electronics America, HD6845SP Datasheet

HD6845SP

Manufacturer Part Number

HD6845SP

Description

CRT Controller

Manufacturer

Renesas Electronics America

Datasheets

1.HD6845SP.pdf (43 pages)

2.HD6845SP.pdf (20 pages)

Specifications of HD6845SP

Power Supply Type

Analog

Typical Operating Supply Voltage

5 V

Minimum Operating Supply Voltage

4.75 V

Maximum Operating Supply Voltage

5.25 V

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

HD6845SP

Manufacturer:

Quantity:

9 416

Company:

Meier Automation Equipment Co., Limited

Part Number:

HD6845SP

Manufacturer:

HITACHI/日立

Quantity:

20 000

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HD6845R/HD6845S - CRT Controller (CRTC)

The CRTC is a LSI controller which is designed to provide an interface to microcomputers to raster scan type CRT

displays. The CRTC belongs to the HD6800 family LSI family and has full compatibility with MPU in both data lines and

control lines. Its primary function is to generate timing signal which is necessary for raster scan type CRT display

according to the specification programmed by MPU. The CRTC is also designed as a programmable controller, so

applicable to wide-range CRT display from small low-functioning character display up to raster type full graphic display

as well as large high-functioning limited graphic display.

* FEATURES

* SYSTEM BLOCK DIAGRAM

* PIN ARRANGEMENT

Hitachi HD6845 Cathode Ray Tube Controller

http://andercheran.aiind.upv.es/~amstrad/docs/hd6845s/hd6845sp.htm (1 of 20)4/15/2004 11:36:03 AM

Number of Displayed Characters on the Screen, Vertical Dot Format of One Character, Horizontal and Vertical

Sync Signal, Display Timing Signal are programmable

3.7Mhz High Speed Display Operation (HD6845S)

3.0Mhz High Speed Display Operation (HD6845R)

Line Buffer-Less refreshing

14-bit Refresh Memory Address Output (16k Words max access)

Programmable Interlace/Non-Interlace Scan Mode

Built-in Cursor Control Function

Programmable Cursor Height and its Blink

Paging and Scrolling Capability

TTL compatible

Single +5V Power Supply

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