The devices are 8-bit high performance RISC architecture microcontroller devices specifically designed for the I/O control. The advantages of low power consumption, I/O flexibility, timer functions, oscillator options, HALT and wake-up functions, watchdog timer, as well as low cost, enhance the versatility of these devices to suit for a wide range of the I/O control application possibilities such as industrial control, consumer products and subsystem controllers, etc.

CPU Features

• Operating voltage : fSYS =8MHz: 2.3V~5.5V
• Up to 0.5us instruction cycle with 8MHz system clock at VDD =5V
• Power down and wake-up functions to reduce power consumption
• Two oscillators:
  • Internal high speed RC -- HIRC
  • Internal low speed RC -- LIRC
• Fully integrated internal 8MHz oscillator requires no external components
• All instructions executed in one or two instruction cycles
• Table read instruction
• 61 powerful instructions
• 2-level subroutine nesting
• Bit manipulation instruction

Peripheral Features

• Program Memory: 1Kx14
• RAM Data Memory: 64x8
• Watchdog Timer function
• Up to 14 bidirectional I/O lines
• External interrupt pin shared with I/O pin
• One 8-bit programmable Timer/Event Counter with overflow interrupt and prescaler
• Low voltage reset function
• Package types: 8-pin SOP and 16-pin NSOP
• Programmable Frequency Divider - PFD

Specification:

• internal clock: 8MHz
• VDD: 2.3V~5.5V
• system clock: 8MHz
• program memory: 1Kx14
• data memory: 64x8
• I/O: 8
• 8-bit timer: 1
• stack: 2
• case: 8SOP