General Description

The HT66F2372 is a Flash Memory A/D 8-bit high performance RISC architecture microcontroller,  designed for applications that interface directly to analog signals.

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 A/D converter and dual comparator functions.  Multiple and extremely flexible Timer Modules provide timing, pulse generation and PWM  generation functions. Communication with the outside world is catered for by including fully  integrated SPI, I2 C and UART interface functions, these 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 oscillators are provided including two fully  integrated system oscillators which require 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, a 16-bit MDU, Time Base functions along with  many other features ensure that the device 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.