MC68B02

MC6802 MC6808 MC6802NS MICROPROCESSOR WITH CLOCK AND OPTIONAL RAM The MC6802 is a monolithic 8-bit microprocessor that contains all the registers and accumulators of the present MC~OO plus an internal clock oscillator and driver on the same chip. In addition, the MCW02 has 128 bytes of on-board RAM located at hex addresses $~ to $O07F. The first 32 bytes of RAM, at hex addresses $~ to $001 F, may be retained in a low power mode by utilizing VCC standby; thus, facilitating memory ietention during a power-down situation. The MC6802 is completely software compatible with the MC68W as well as the entire M~W family of parts. Hence, the MC6802 is expand- able to WK words. The MC6802NS is identical to the MC6802 without standby RAM feature. The MC6808 is identical to the MC6802 without on-board RAM, q On-Chip Clock Circuit q 128x8 Bit On-Chip RAM ~>,,~ q 32 Bytes of RAM are Retainable ;.\!J$;~: ,~: q Software-Compatible with the MC68~ q Expandable to 64K Words q Standard TTL-Compatible Inputs and Outputs q 8-Bit Word Size ~\R,!. t *$\i, ~....,,.W~,~.:..;;‘.,,$,,‘~.>$~~$!..,‘~\~iM., .*.:X l~,o,?, .f+.1$,.>t~,*,,,,.$.t.,.,~.$ . 16-8it Memory Addressing q Interrupt Capability ~:t ,,.,,),? ,.,.. .,,$. .$.\.,!..,\.\, +$,;{,, ~.$. >&, ~y,,$,’\\,..,.:‘,.Js:..~$4i,.:>.,/....,~b~,$, >.>l,i,y. .,,.,{+? ,, “ ‘,{$;:,~?s.~:.$q~:,i$~ .,,. a:.,,3,, ,~,,i..>~.,.~’:,>\\.)~t.’ ,,.,,a+, :>‘~.,.-’ ?;:<, \%:>.~t ,~ ~,,,,)~.$t~~;~,,.r>.,!..K.,,?t.,,c.,K.,,..,.,.*!,....