Mitsubishi M38B54E4-XXFS
RAM size 640 bytes; single-chip 8-bit CMOS microcomputer

Mitsubishi M38B54E4-XXXFP
RAM size 640 bytes; single-chip 8-bit CMOS microcomputer

RENESAS[Renesas Technology Corp] M38B54E4XXXFP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

RENESAS[Renesas Technology Corp] M38B54E4XXXFS
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER