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(l)UMC
UM6845/UM6845A/UM6845B
CRT Controller
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.
UM6845A Datasheet
