This series of devices are a Flash MCU dedicated for use in low cost timer applications. It is a Flash Memory type 8-bit high performance RISC architecture microcontroller. Offering users the convenience of Flash Memory multi-programming features, the device also includes a wide range of functions and features. Other memory includes an area of RAM Data Memory.

An extremely flexible Timer/Event Counter allows the users to count external events, measure time intervals and pulse widths, and generate an accurate time base. Protective features such as an internal Watchdog Timer coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments.

Each device of this series has a fully integrated system oscillator which requires no external components for their implementation. The HT68F001 low speed oscillator is the internal 32kHz RC oscillator, LIRC, while the HT68F0012 low speed oscillator is the internal 512kHz RC oscillator, IRC.

The inclusion of flexible I/O programming features, Time-Base function along with many other features ensure that the device will find excellent use in Timer applications such as water filter elements, toasters, on/off LEDs, Chargers, clock alarm and electricity cake clangs etc.

CPU Features

• Operating Voltage
  • fSYS =32kHz at 1.8V~5.5V (HT68F001)
  • fSYS =512kHz at 1.8V~5.5V (HT68F0012)
• Up to 7.8125us instruction cycle with 512kHz system clock at VDD = 5V
• Power down and wake-up functions to reduce power consumption
• Oscillator:
  • Internal Low speed 32kHz RC - LIRC (HT68F001)
  • Internal Low speed 512kHz RC - IRC (HT68F0012)
• Multi-mode operation: SLOW, IDLE and SLEEP
• Fully integrated internal oscillators require no external components
• All instructions executed in one or two instruction cycles
• Table read instructions
• 63 powerful instructions
• 2-level subroutine nesting
• Bit manipulation instruction

Peripheral Features

• Flash Program Memory: 512x12
• RAM Data Memory: 16x8
• Watchdog Timer function
• 6 bidirectional I/O lines
• Single 8-bit programmable Timer/Event Counter
• Single Time-Base function for generation of fixedtime interrupt signals
• Package type: 8-pin SOP

Specification:

• max. frequency: 32kHz
• VDD: 1.8V~5.5V
• program memory: 0.5Kx12
• data memory: 16x8
• stack: 2
• I/O: 6
• timer: 8-bit×1
• case: 8SOP