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 numbers, calibration data etc. By using the In Application Programming technology, users have a convenient means to directly store their measured data in the Flash Program Memory as well as having the ability to easily update their application programs.

Analog features include a multi-channel A/D converter, two operational amplifiers, two comparators and three 8-bit D/A converters. With regard to internal timers, the device includes multiple and extremely flexible Timer Modules providing functions for timing, pulse generation and PWM generation operations. Communication with the outside world is catered for by the inclusion of fully integrated SPI, I²C and UART interface functions, popular interfaces which provide designers with a means of easy communication with external peripheral hardware. Protective features such as an internal Watchdog Timer, Low Voltage Reset and Low Voltage Detector coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments.

The device also includes fully integrated high and low speed oscillators which 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, complementary PWM outputs with dead time, 16-bit enhanced PWM along with many other features ensure that the device will find excellent use in applications such as smoke detectors, 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
  • fSYS =12MHz: 2.7V~5.5V
  • fSYS =16MHz: 3.3V~5.5V
• Up to 0.25μs instruction cycle with 16MHz system clock
• Power down and wake-up functions to reduce power consumption
• Oscillator types
  • Internal High Speed 8/12/16MHz RC – HIRC
  • Internal Low Speed 32kHz RC – LIRC
• Multi-mode operation: FAST, SLOW, IDLE and SLEEP
• Fully integrated internal oscillators require no external components
• All instructions executed in 1~3 instruction cycles
• Table read instructions
• 115 powerful instructions
• 8-level subroutine nesting
• Bit manipulation instruction

Peripheral Features

• Flash Program Memory: 4K×16
• Data Memory: 512×8
• True EEPROM Memory: 512×8
• In Application Programming function – IAP
• Watchdog Timer function
• 22 bidirectional I/O lines
• Two external interrupt lines shared with I/O pins
• Two operational amplifiers, two comparators and three 8-bit D/A converters
• Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output function
• Complementary PWM outputs with dead time
• 16-bit enhanced PWM
• Dual Time-Base functions for generation of fixed time interrupt signals
• Serial Interface Module – SIM includes SPI and I²C interfaces
• Fully-duplex/Half-duplex Universal Asynchronous Receiver and Transmitter Interface – UART
• 8 external channel 12-bit resolution A/D converter with internal reference voltage VVR
• Integrated 16-bit Cyclic Redundancy Check function – CRC
• Low voltage reset function
• Low voltage detect function
• Package types: 24-pin SSOP

Specification:

• max. frequency: 12MHz
• VDD: 2.2V~5.5V
• program memory: 16Kx16
• data memory: 512x8
• data EEPROM: 128x8
• stack: 16
• I/O: 46
• timer: 10-bit STMx2, 10-bit PTM×2
• ADC: 12-bitx8
• DAC: 8-bitx3
• Voice DAC: 16-bitx1
• interface: SPI/I²C×1, UART×1
• case: 24SSOP