FEATURES

- 80C51 CPU core

- 3.0 ~ 3.6V voltage range

- On-chip Flash program memory with in-system programming ( ISP )

- Operating frequency up to 40MHz (12x), 20MHz(6x)

- 64K bytes Flash memory for code memory

- 1280 bytes internal data RAM

- Low power consumption

- Code and data memory expandable to 64K Bytes

- Four 8 bit and one 4 bit general purpose I/O ports

- Three standard 16-bit Timers

- In - Application Programming( IAP ) capability

- On-chip Watch Dog Timer

- Four channel PWM outputs/4bit general purpose I/O ports ( PLCC & LQFP only )

- UART

- 7 interrupt sources with four priority level

- 5 volt tolerant input

- 400kb/s I2C

- 6x / 12x clock mode