Contextual Info: DATA SHEET MOS INTEGRATED CIRCUIT ¿iPD75237 4-BIT SINGLE-CHIP MICROCOMPUTER DESCRIPTION T h e /¿PD75237 is a m ic ro c o m p u te r w ith a CPU c a p a b le o f 1-, 4 -, and 8 -b it-w is e data p ro ces sin g , a R O M , a R A M , I/O p orts, a flu o re s c e n t d is p la y tu b e FIP