LS80C52 CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
LS80C52-1 CHMOS single-chip 8-bit microcontroller with burn-in. 3.5 MHz to 16 MHz, 5 V, ROM 8 Kbytes, RAM 256 bytes
LS80C52-24 CHMOS single-chip 8-bit microcontroller with burn-in. 3.5 MHz to 24 MHz, 5 V, ROM 8 Kbytes, RAM 256 bytes