Induction Cooker Flash MCU

The device is a Flash Memory type 8-bit high performance RISC architecture microcontroller especially designed for induction cooker applications.

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.

Analog features include a multi-channel 12-bit A/D converter, an operational amplifier and six comparators, five of which are used for Over Voltage Protection function. Easy communication with the outside world is provided using the internal I2C interface function. 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, Timers, a Programmable Pulse Generator, a Peripheral Clock Output along with many other features ensure that the device will find excellent use in induction cooker applications.

CPU Features

• operating voltage: fSYS =16MHz: 3.3V~5.5V
• up to 0.25μs instruction cycle with 16MHz system clock at VDD =5V
• power down and wake-up functions to reduce power consumption
• oscillator types
  • internal high speed 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: 128×8
• watchdog timer function
• 17 bidirectional I/O lines
• 14 external channel 12-bit resolution A/D converter with Internal Reference Voltage VBG
• 9-bit programmable pulse generator
  • pulse width limit function
  • two sets of 9-bit counter preload registers and two sets of 9-bit counter approach registers
  • non-retrigger control from 8-bit Timer/Event Counter 2
  • retrigger control from 8-bit Timer/Event Counter 3
  • active high pulse, active low pulse, forced low or forced high output
• four 8-bit programmable Timer/Event Counters
  • timer/event counter 0/1 can be configured to count synchronism pulse number or measure synchronism pulse high or low period
  • timer/event counter 2 can be configured to implement PPG non-retrigger function
  • timer/event counter 3 can be configured to implement PPG retrigger function
• 6 comparator functions, five of which are used for Over Voltage Protection functions
• single operational amplifier function – OPAMP
• peripheral clock output
• I2C interface, available for slave mode
• integrated 16-bit cyclic redundancy check function – CRC
• low voltage reset function
• low voltage detect function
• package type: 20-pin SOP