Touch Flash MCU with LCD/LED Driver

The series of devices are Flash Memory type 8-bit high performance RISC architecture microcontrollers with fully integrated touch key functions. With all touch key functions provided internally, completely eliminating the need for external components, each device has all the feactures to offer designers a reliable and easy means of implementing touch keys within their products 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 software controlled LCD function. 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 intergrated UART or I2C interface functions, two 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.

A full choice of external low, internal high and low oscillators is provided including two fully integrated system 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 optimize microcontroller operation and minimize power consumption.

The inclusion of flexible I/O programming features, Time Base funcitons along with many other features ensure that these devices will find excellent use in applications such as sensor signal processing, motor driving, industrial control, consumer products and subsystem controllers, etc.

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 at VDD =5V
• Power down and wake-up functions to reduce power consumption
• Oscillator types
  • ♦ Internal High Speed 8/12/16MHz RC – HIRC
  • ♦ External Low Speed 32.768kHz Crystal – LXT
  • ♦ 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
• Up to 8-level subroutine nesting
• Bit manipulation instruction

Peripheral Features

• Flash Program Memory: 4K×16~8K×16
• RAM Data Memory: 512×8~768×8
• true EEPROM Memory: 512×8
• up to 20 touch key functions – fully integrated without requiring external components
• watchdog Timer function
• up to 42 bidirectional I/O lines
• programmable I/O port source current and sink current for LED driver applications
• up to 2 pin-shared external interrupts
• multiple Timer Modules for time measurement, compare match output or PWM output or single pulse output function
• I2C Interface
• fully-duplex / Half-duplex Universal Asynchronous Receiver and Transmitter Interface – UART
• software controlled up to 34-SCOM/SSEG lines LCD driver with 1/3 bias
• dual Time Base functions for generation of fixed time interrupt signals
• low voltage reset function
• low voltage detect function
• wide range of available package types