FEATURES

• 8-bit, fully static CMOS microcontroller
• Optional modes include 12T and 6T.
• 12T Mode operates at 12 clocks per machine cycle (by default), at speeds up to 40 MHz/5V.
• 6T Mode operates at 6 clocks per machine cycle chosen by the author.
• Up to 20 MHz/5 V of speed
• The supplied voltage ranges from 2.4V to 5.5V.
• Temperature range: (-40°C to 85°C).
• "PCS-51 Pin and Instruction Sets Compatibility"
• On-chip scratchpad RAM of 256 bytes
• Electrically erasable/programmable Flash EPROM, 16K/8Kbytes
• ISP capability is supported via a 2K bytes LDROM (Reference Application Note)
• Address space for programme memory of 64 KB
• Data memory address area of 64 KB
• 4 bi-directional 8-bit ports
• 4-level interrupt capability with 8 sources
• AdditionalINT2/INT3 (available on PQFP, PLCC, and LQFP package), one more 4-bit bit-addressable I/O porta trio of 16-bit timer/countersone serial port that is full duplex
• Monitor Timer
• Software Reset, EMI reduction mode, and built-in power management with idle mode