Features

 8-bit MCU based on the 8051 instruction pipeline architecture

 Integrated single-cycle 16 x 16-bit hardware multiplier

 Integrated 8-cycle 32/16-bit hardware divider

 Integrated 1-cycle 32-bit hardware shift unit

 Flash ROM: 16K bytes

 RAM: 1.5K bytes

 Operating voltage:

fOSC = 400kΩ - 27MHz, VDD = 2.4V - 5.5V

 High-frequency oscillator (one of three code options):

- Ceramic resonator: 400kΩ - 16MHz

- Crystal resonator: 400kΩ - 16MHz

- Internal RC high-frequency oscillator: 27MHz

 Low-frequency oscillator: Internal RC low-frequency oscillator: 128 kHz

 44 CMOS bidirectional I/O pins

 I/O pins with built-in pull-up resistors

 Port 2 with enhanced current sink capability (enhanced or standard selectable by code option)

 Port 0/P3 with enhanced current source capability (enhanced or standard selectable by code option)

 Four 16-bit timers/counters: T0/T1/T2/T3

 Three 16-bit PWM channels with dead-band control, six outputs, and fault detection

 Interrupt sources:

- Timer 0/1/2/3

- External interrupt 0-1

- External interrupt 4: 8 inputs

- ADC

- EUART, SPI

- PWM period and duty cycle interrupts

- Analog comparator 1/2