M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP REJ.
Renesas
M37221M4H-XXXFP - Single-Chip 8-Bit CMOS Microcomputer
M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP REJ03B0134-0100Z SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER Rev.1.00 with ON-SCREEN .