The series of devices are Flash Memory A/D type 8-bit high performance RISC architecture microcontrollers, designed for applications which require an LCD interface.

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 12-bit AD converter. Multiple and extremely flexible Timer Modules provide timing, pulse generation, capture input, compare match output 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 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, internal, high and low speed oscillators is provided including two fully integrated system oscillators which requires 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 minimize power consumption.

The inclusion of flexible I/O programming features, Time Base functions along with many other features ensure that the series of devices 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 =4MHz: 1.8V~5.5V
  • fSYS =8MHz (HT69F340/350/360): 2.0V~5.5V
  • fSYS =8MHz (HT67F370): 1.8V~5.5V
  • fSYS =12MHz: 2.7V~5.5V
  • fSYS =16MHz (HT69F340/350/360): 4.5V~5.5V
  • fSYS =16MHz (HT67F370): 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
  • External High Speed Crystal – HXT
  • Internal High Speed 4/8/12MHz RC – HIRC
  • External Low Speed 32.768kHz Crystal – LXT
  • Internal Low Speed 32kHz – LIRC
• Fully integrated internal oscillators require no external components
• Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
• All instructions executed in one to three instruction cycles
• Table read instructions
• 115 powerful instructions
• 8-level subroutine nesting
• Bit manipulation instruction

Peripheral Features

• Flash Program Memory: 4K×16~32K×16
• RAM Data Memory: 256×8~2048×8
• True EEPROM Memory: 64×8~256×8
• In Application Programming function – IAP
• Watchdog Timer function
• Up to 63 bidirectional I/O lines
• LCD driver function
• Two external interrupt lines shared with I/O pins
• Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output function
• Dual Time Base functions for generation of fixed time interrupt signals
• Serial Interfaces Module – SIM for SPI or I²C
• Single Fully-duplex Universal Asynchronous Receiver and Transmitter Interface – UART ( For HT69F360 and HT67F370)
• 12 external channel 12-bit resolution A/D converter with internal reference voltage VVR
• Low voltage reset function
• Low voltage detect function
• 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 types: 48/64/80-pin LQFP

Specification:

• max. frequency: 16MHz
• VDD: 1.8V~5.5V
• program memory: 16Kx16
• data memory: 1024x8
• data EEPROM: 128x8
• stack: 8
• I/O: 63
• timer: 10-bit PTM×2, 10-bit CTM×1, 16-bit STM×1
• LCD: 48x4, 49x3
• interface: SPI/I²C×1, UARTx1
• case: 64LQFP