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Home > Products > Holtek MCUs > 8-bit(Flash)MCU

Holtek MCU HT66F0195

The device is a Flash Memory type 8-bit high performance RISC architecture microcontroller.

General Description

The device is a Flash Memory type 8-bit high performance RISC architecture microcontroller.  Offering users the convenience of Flash Memory multi-programming features, the device also  includes a wide range of functions and 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.

Analog features include a multi-channel 12-bit A/D converter and a comparator function. 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, three 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 and internal low and high oscillator functions are provided including  fully integrated system oscillators which require no external components for their 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 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.

Product Features

  • CPU Features

    • Operating voltage

    ♦ fSYS=8MHz: 2.2V~5.5V

    ♦ fSYS=12MHz: 2.7V~5.5V

    ♦ fSYS=16MHz: 3.3V~5.5V

    • Up to 0.25μs instruction cycle with 16MHz system clock at VDD=5V

    • Power down and wake-up functions to reduce power consumption

    • Oscillators

    ♦ External High Speed Crystal – HXT

    ♦ Internal High Speed RC – HIRC

    ♦ External Low Speed 32.768kHz Crystal – LXT

    ♦ Internal 32kHz RC – LIRC

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

    • Fully integrated oscillators require no external components

    • All instructions executed in one or two instruction cycles

    • Table read instructions

    • 61 powerful instructions

    • 8-level subroutine nesting

    • Bit manipulation instruction

  • Peripheral Features

    • Flash Program Memory: 8K×16

    • RAM Data Memory: 512×8

    • True EEPROM Memory: 128×8

    • Watchdog Timer function

    • 26 bidirectional I/O lines

    • Two external interrupt lines shared with I/O pins

    • Programmable I/O port source current for LED applications

    • Multiple Timer Modules for time measure, input capture, compare match output, PWM output  function or single pulse output function

    • Serial Interfaces Module – SIM for SPI or I2 C

    • Fully-duplex Universal Asynchronous Receiver and Transmitter Interface – UART

    • Software controlled 6-SCOM/SSEG and 18-SSEG lines LCD driver with 1/3 bias

    • 12 external channels 12-bit resolution A/D converter

    • One comparator function

    • Dual Time-Base function for generation of fixed time interrupt signals

    • Low voltage reset function

    • Low voltage detect function

    • Flash program memory can be re-programmed up to 10,000 times

    • Flash program memory data retention > 10 years

    • True EEPROM data memory can be re-programmed up to 100,000 times

    • True EEPROM data memory data retention > 10 years

    • Package types: 24-pin SSOP, 28-pin SSOP

Block Diagram

Holtek MCU HT68F0017


Pin Assignment

Holtek MCU HT68F0017


Pin Description

Holtek MCU HT68F0017


How to Order

You can get your Holtek MCU HT66F0195 solution by flling out the form below and we will contact you immediately.

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