HT66F0175/HT66F0185

A/D Flash MCU with EEPROM

General Information

(HT66F0175 Restricted Products. Notification Date : 2024/08/01 Effective Date : 2024/11/01)
(HT66F0185 24/28SKDIP EOL)
(HT66F0175 EOL)

The series of devices are Flash Memory A/D type 8-bit high performance RISC architecture microcontroller. 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 RAMData Memory as well as an area of True EEPROM memory for storage of non-volatile data such as serial numbers, calibratuib data, etc.

Analog features include a multi-channel 12-bit A/D converter and a comparator functions. Multiple andextremely flexible Timer Modules provide timing, pulse generation and PWM generation functions. 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, 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 minimize 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.

 

CPU Features

Operating voltage
  • fSYS = 8MHz: 2.2V~5.5V
  • fSYS =12MHz: 2.7V~5.5V
  • fSYS =20MHz: 4.5V~5.5V
Up to 0.2us instruction cycle with 20MHz system clock at VDD =5VAvailable
Power down and wake-up functions to reduce power consumptionAvailable
Oscillator type
  • - External High Speed Crystal - HXT
  • - External 32.768kHz Crystal - LXT
  • - Internal High Speed RC - HIRC
  • - Internal 32kHz RC - LIRC
Fully integrated internal 8/12/16 MHz oscillator requires no external componentsAvailable
Multi-mode operation

NORMAL, SLOW, IDLE and SLEEP

All instructions executed in one to two instruction cyclesAvailable
Table read instructionsAvailable
63 powerful instructionsAvailable
8-level subroutine nestingAvailable
Bit manipulation instructionAvailable

Peripheral Features

Program Memory

Up to 4Kx16

Data Memory

Up to 256x8

True EEPROM Memory

Up to 128x8

Watchdog Timer functionAvailable
Up to 26 bidirectional I/O linesAvailable
Two external interrupt lines shared with I/O pinsAvailable
Multiple Timer Modules for time measure, input capture, compare match output, PWM output function or single pulse output functionAvailable
Serial Interfaces Module - SIM for SPI or I2CAvailable
Software controlled 6-SCOM/SSEG and 18-SSEG lines LCD driver with 1/3 biasAvailable
Programmable I/O port source current for LED applicationsAvailable
Dual Time-Base functions for generation of fixed time interrupt signalsAvailable
8-channel 12-bit resolution A/D converterAvailable
One Comparator function - available in HT66F0185Available
Fully-duplex Universal Asynchronous Receiver and Transmitter Interface - UART, available inHT66F0185Available
Low voltage reset functionAvailable
Low voltage detect functionAvailable
Flash program memory can be re-programmed up to 10,000 timesAvailable
Flash program memory data retention > 10 yearsAvailable
True EEPROM data memory can be re-programmed up to 100,000 timesAvailable
True EEPROM data memory data retention > 10 yearsAvailable
Wide range of available package typesAvailable

Resources

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