C51 Family

· 8-bit CPU optimized for control applications
· Extensive boolean processing (single-bit logic) capabilities
· 64 K Program Memory address space
· 64 K Data Memory address space
· 4 K bytes of on chip Program Memory
· 128 bytes of on chip data RAM
· 32 bidirectionnal and individually addressable I/O lines
· two 16-bit timers/counters
· Full duplex UART
· 6 sources / 5-vector interrupt structure with 2 priority levels
· on chip clock oscillators