4-Bit MROM Microcontroller, 28-Pin PDIP, Commercial Extended
4-Bit MROM MCU, PDIP28, 4.5MHz, 2.5-5.5V, 22 I/O
4-Bit MROM Microcontroller, 28-Pin PDSO, Commercial Extended
4-Bit MROM MCU, PDSO30, 4.5MHz, 2.5-5.5V, 30-Pin