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in t e l
87C52/80C52/80C32
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
WITH 8 KBYTES INTERNAL PROGRAM MEMORY
87C52/80C52/80C32â3.5 MHz to 12 MHz, Vc c = 5V ±20%
87C52-1/80C52-1/80C32-1â3.5 MHz