This series of devices are Flash Memory A/D type 8-bit high performance RISC architecture microcontrollers which include a multi-channel 24-bit Delta Sigma A/D converter and fully integrated LCD driver. The devices are there suitable for use in products which require a low noise and high accuracy analog to digital converter and which also need to drive LCD panels. Offering users the convenience of Flash Memory multi-programming features, these devices also include a wide range of functions and 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 with 24-bit Delta Sigma A/D converter and programmable gain amplifier (PGA) functions. An extremely flexible Timer Module provides timing, pulse generation and PWM generation functions. Communication with the outside world is catered for by including fully integrated SPI or I2C interface functions, two popular interfaces which provide designers with a means of easy communication with external peripheral hardware. In addition, an internal LDO function provides various power options to the internal and external devices. 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.

A full choice of HXT, LXT, HIRC and LIRC oscillator functions are provided including a fully integrated system oscillator which requires no external components for its 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, a fully integrated LCD driver and Time-Base functions along with many other features ensure that the devices will find excellent use in applications such as weight scales, electronic metering, environmental monitoring, handheld instruments, household appliances, electronically controlled tools, motor driving in addition to many others.

CPU Features

• Operating Voltage:
  • fSYS =8MHz: 2.2V~5.5V
  • fSYS =12MHz: 2.7V~5.5V
  • fSYS =12MHz: 3.3V~5.5V
  • fSYS =20MHz: 4.5V~5.5V
• Up to 0.2us instruction cycle with 20MHz system clock at VDD =5V
• Power down and wake-up functions to reduce power consumption
• Four oscillators:
  • - External Crystal -- HXT
  • - External 32.768kHz Crystal -- LXT
  • - Internal RC -- HIRC
  • - Internal 32kHz RC -- LIRC
• Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
• Fully integrated internal 4.9152MHz, 4.9152x2MHz and 4.9152x3MHz oscillator requires 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: 8Kx16 ~ 16Kx16
• RAM Data Memory: 512x8 ~ 1024x8
• True EEPROM Memory: 128x8 ~ 256x8
• In Application Programming function -- IAP
• Watchdog Timer function
• LCD COM driver with 1/3 bias
• Up to 32 bidirectional I/O lines
• 4 pin-shared external interrupts
• Multiple Timer Modules for time measure, input capture, compare match output, PWM output or single pulse output function
• Dual Time-Base functions for generation of fixed time interrupt signals
• 2 differential and 4 single-end channels 24-bit resolution Delta-Sigma A/D converter
• Low voltage reset function
• Low voltage detect function
• Internal LDO with bypass function for PGA, ADC or external sensor power supply
• Serial Interfaces Module -- SIM for SPI or I2C
• UART with IR carrier
• Two comparators
• Flash program memory can be re-programmed up to 10,000 times
• Flash program memory data retention > 10 years
• True EEPROM data memory can be re-programmed up to 100,000 times
• True EEPROM data memory data retention > 10 years
• Package type: 64-pin LQFP and 80-pin LQFP

Specification:

• internal clock: 4.91MHz, 9.83MHz, 14.74MHz
• VDD: 2.2V~5.5V
• system clock: 400kHz~20MHz or 32kHz
• program memory: 8Kx16
• data memory: 512x8
• data EEPROM: 128x8
• I/O: 32
• LCD: 40x4
• timer: 10-bit CTMx1, 16-bit STMx1, 10-bit PTMx2
• A/D: 24-bitx8
• comparator: 2
• interface: SPI/I²Cx1, UARTx1
• stack: 8
• case: 80LQFP