UM6845EA

(l)UMC UM6845£/UM6845£A/UM6845£B CRT Controller Features Single + 5 volt (± 5%) power supply Alphanumeric and limited graphics capabilities Fully programmable display (rows, columns, blanking, etc.). Interlaced or non-interlaced scan 50/60 Hz operation Fully programmable cursor External light pen capability Capable of addressing up to 16K character Video Display RAM No DMA required Pin-compatible with MC6845R Row/Column or straight-binary' addressing for Video Display RAM Video Display RAM may be configured as part of microprocessor memory field or independently slaved to 6845 Internal status register 3.7 MHz character clock Transparent address mode General Description The UM6845E is a CRT Controller intended to provide capability for interfacing and 8 or 16 bit microprocessor family to CRT or TV-type raster scan displays. A unique feature is the inclusion of several modes of operation, so that the system designer can con...