Copy MCU Chip HOLTEK HT68F40

We can crack MCU Chip HOLTEK HT68F40, please view below IC features for your reference:


CPU Features

  • · Operating Voltage:

Peripheral Features

  • · Flash Program Memory: 1K´14 ~ 12K´16

fSYS= 8MHz: 2.2V~5.5V

fSYS= 12MHz: 2.7V~5.5V

fSYS= 20MHz: 4.5V~5.5V

Up to 0.2ms instruction cycle with 20MHz system clock at VDD=5V

Power down and wake-up functions to reduce power consumption

Five oscillators:

External Crystal – HXT

External 32.768kHz Crystal – LXT


  • · RAM Data Memory: 64´8 ~ 576´8
  • · EEPROM Memory: 32´8~256´8
  • · Watchdog Timer function
  • · Up to 50 bidirectional I/O lines
  • · Software controlled 4-SCOM lines LCD driver with 1/2 bias
  • · Multiple pin-shared external interrupts
  • · Multiple Timer Module for time measure, input capture, compare match output, PWM output or


External RC – ERC

Internal RC – HIRC

Internal 32kHz RC – LIRC

single pulse output function

Serial Interfaces Module – SIM for SPI or I2C

Dual Comparator functions


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  • ·


Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP

Fully integrated internal 4MHz, 8MHz and 12MHz

Dual Time-Base functions for generation of fixed time interrupt signals

Low voltage reset function oscillator requires no external components

All instructions executed in one or two instruction cycles

Table read instructions

63 powerful instructions

Up to 12-level subroutine nesting

Bit manipulation instruction



General Description

The HT68FXX series of devices are Flash Memory I/O type 8-bit high performance RISC architecture microcontrollers. 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 EEPROM memory for storage of non-volatile data such as serial numbers, calibration data etc.

Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. Analog features include dual comparator 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. 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, ERC, 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, Time-Base functions along with many other features ensure that the 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.

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