Datasheet Summary
87C51 80C51BH 80C31BH CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER mercial Express
87C51 80C51BH 80C51BHP 80C31BH See Table 1 for Proliferation Options
High Performance CHMOS EPROM 24 MHz Operation Improved Quick-Pulse Programming Algorithm 3-Level Program Memory Lock Boolean Processor 128-Byte Data RAM 32 Programmable I O Lines Two 16-Bit Timer Counters Extended Temperature Range ( b 40 C to a 85 C)
5 Interrupt Sources Programmable Serial Port TTL- and CMOS-patible Logic Levels 64K External Program Memory Space 64K External Data Memory Space ONCE Mode Facilitates System Testing Power Control Modes Idle Power Down
Y Y Y Y Y Y
MEMORY ORGANIZATION
PROGRAM MEMORY Up...
