Features • 80C51 Core – 12 or 6 Clocks per Ins.
ATMEL Corporation
AT85C5121 - 8-bit Microcontroller
Features • 80C51 Core – 12 or 6 Clocks per Instruction (X1 and X2 Modes) – 256 Bytes Scratchpad RAM – Dual Data Pointer – Two 16-bit Timer/Counters: T.