4-Bit MROM MCU, 4.5MHz, 5V, 34 I/O, SDIP42
4-BIT, MROM, MICROCONTROLLER, PDIP42, DP-42S
42-Pin Commercial Extended Temperature Microcontroller
MCU 4-Bit HMCS400 CISC 8KB OTP 5V 42-Pin SDIP
MCU 4-bit HMCS400 CISC 8KB EPROM 5V 42-Pin SDIP
HD404418S