4-Bit MROM Microcontroller, PQFP-44, 8.5MHz, 5V, 35 I/O
4-Bit Microcontroller, OTPROM, 42-Pin DIP, 8.5MHz, 2.7-5.5V
44-Pin Quad Flat Pack Microcontroller, Commercial Extended, 2.7-5.5V, 4MHz
32-Pin QFP CMOS IC, 2.7V to 5.5V, 3V Nominal, Commercial Extended
4-BIT, Otprom, 4.2MHZ
