The device is a Flash Memory A/D type 8-bit high performance RISC architecture microcontroller.

For memory features, the Flash Memory offers users the convenience of multi-programming features. Other memory includes an area of RAM Data Memory as well as an area of true EEPROM memory for storage of non-volatile data such as serial number, calibration data, etc.

Analog feature includes a multi-channel 12-bit A/D converter. Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. Communication with the outside world is catered for by including fully integrated SPI, I²C and UART interface functions, three popular interfaces which provide designers with a means of easy comminucation with external peripheral hardware. Protective features such as an internal Watchdog Timer and Low Voltage Reset coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments.

A full choice of internal high and low speed oscillators are provided and the two fully integrated system oscillators require no external components for their implementation. The ability to operate and switch dynamically between a range of operating modes using different clock sources gives users the ability to optimise microcontroller operation and minimise power consumption.

The inclusion of flexible I/O programming features, Time-Base functions along with many other features ensure that the device will find excellent use in applications such as electronic metering, environmental monitoring, handheld instruments, household appliances, electronically controlled tools, motor driving in addition to many others.

CPU Features

• Operating Voltage: fSYS =8MHz: 1.8V~5.5V
• Up to 0.5μs instruction cycle with 8MHz system clock at VDD =5V
• Power down and wake-up functions to reduce power consumption
• Oscillator Types
  • Internal High Speed 8MHz RC – HIRC
  • Internal Low Speed 32kHz RC – LIRC
• Fully integrated internal oscillators require no external components
• Multi-mode operation: FAST, SLOW, IDLE and SLEEP
• All instructions executed in one or two instruction cycles
• Table read instructions
• 61 powerful instructions
• 4-level subroutine nesting
• Bit manipulation instruction

Peripheral Features

• Flash Program Memory: 2K×15
• Data Memory: 128×8
• True EEPROM Memory: 32×8
• Watchdog Timer function
• 13 bidirectional I/O lines and one general purpose output line
• Programmable I/O source current for LED applications
• Single external interrupt line shared with I/O pins
• Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output function
• Serial Interface Module – SIM for SPI, I2C communication
• High-Speed fully-duplex or half-duplex Universal Asynchronous Receiver and Transmitter Interface
• Dual Time-Base functions for generation of fixed time interrupt signals
• 4 external channel 12-bit resolution A/D converter with internal reference voltage VR
• Low voltage reset function
• Package types: 8-pin SOP, 10-pin MSOP, 16-pin NSOP/QFN

Specification:

• max. frequency: 8MHz
• VDD: 1.8V~5.5V
• program memory: 2Kx15
• data memory: 128x8
• EEPROM: 32x8
• stack: 4
• I/O: 14
• timer: 10-bit CTM×1, 10-bit PTM×1
• ADC: 12-bitx4
• interface: UART×1, SPI/I²C×1
• case: 16QFN