UMC UM6845B
The CRTC UM6845 family are LSI controllers designed to provide an interface for microcomputers to raster scan type CRT displays.| Part No. | UM6845B |
|---|---|
| Datasheet | UM6845B Download |
| Manufacturer |  UMC |
| Description | CRT Controller |
| Buy | Stock & Price |
FEATURES
●APPLICATIONS
include smart, programmable, intelligent CRT terminals; video games; information display● Alphanumeric, semi-graphic, and full graphic capability
● Fully programmable via processor data bus and can generate timing
●for almost any alphanumeric screen density
● Single +5 volt supply, TTL compatibl-e I/O, NMOS Technology
● Hardware scrolling by page, line or character
● Provides CPU's with synchronous signals to external device
● Programmabfe cursor format
● Light pen registers and input strobe signal to latch the light pen position on screen
● Line buffer-less operation. No external DMA required. Reading screen memory is mutliplexed between CRTC and CPU
● Programmable interlace or non- interlace scan
● 14-bit wide display memory reading address
GENERAL DESCRIPTION
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