Features
- Enhanced 8051 microcontroller with reduced
instruction cycle time (up to 12 times 80C51)- Up to 8 MHz flexible CPU frequency
- Internal 32 MHz Clock Generator (IHRC),
1 MHz to 16 MHz crystal, and external
synchronous clock source selections
- Real-time clock with 32.768 kHz crystal
- 8 KB non-volatileflash memory (IROM) with
in-system program support
- 256 bytes internal RAM (IRAM)
- 256 bytes external RAM (XRAM)
- 15 interrupt sources with priority levels
control and unique interrupt vectors
- 13 internal interrupts
- 2external interrupts: INT0, INT1
- 1 set of DPTR
- 2set 8/16-bit timers with 4 operation modes
- 1 set 16-bit timers with 4comparison output
(PWM) and capture channels
- 1set 16-bit PWM generators:
each PWM generator has 6output channels
with inverters and dead-band control
- 12-bit SAR ADC with 11 external and2internal
channels, and 4 internal reference voltages
- SPI, UART, I2Cinterface with SMBus Support
- On-Chip Debug Support:
Single-wire debug interface
3hardware breakpoints
Unlimited software breakpoints
ROM data security/protection
- Watchdog and programmable external reset
- 1.8V low voltage detectors
- Wide supply voltage (1.8 V – 5.5 V) and
temperature (-40 °C to 85 °C) range
Applications
- Brushless DC motor
- Home automation
- Household
- Other