400400014-bit Microprocessor 404000014-bit Microprocessor 800800018-bit Microprocessor 808000108-bit Microprocessor 808500108-bit Microprocessor 5V 40010012256-byte ROM 4002000140-byte RAM 4003002010-bit Shift register 400800108-bit address latch 40090010I/O access converter 41010010256 x 4-bit Static RAM 42010010Clock Generator 82240010Clock generator 42070010G/P 8-bit Output port 42090010G/P 8-bit Input port 42110010G/P 8-bit I/O port 42690010Pgmable keyboard/display 42890010Memory interface 42890010Std Memory Interface 430800101K x 8-bit ROM + I/O 321600104-bit parallel bus drivr 431600102K x 8-bit ROM 47020010256 x 8-bit EPROM 82280010System controller 82380010System controller 82510010Communication controller 82530020Interval timer 82550010Peripheral interface 82570080DMA controller 42650010General-purpose I/O