Read Microcontroller HT68F40 Heximal from flash memory, and then copy MCU HT68F40 code to new MCU which will provide the same functions as master microcomputer HT68F40 by crack Microprocessor security fuse bit;
Features
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
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
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
· Low voltage detect function
· Wide range of available package types
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 for the purpose of read Microcontroller.
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.