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

Holtek MCU HT66F0181

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

General Description

The device is a Flash Memory A/D 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 Emulated EEPROM memory for storage of non-volatile data such as  serial numbers, calibration data, etc.

Analog feature includes a multi-channel 10-bit A/D converter. Multiple and extremely flexible  Timer Modules provide timing, pulse generation and PWM generation functions. Protective features  such as an internal Watchdog Timer and Low Voltage Reset function coupled with excellent noise  immunity and ESD protection ensures that reliable operation is maintained in hostile electrical  environments.

A full choice of internal high and low speed oscillators are provided and the two fully integrated  system oscillators 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 optimize microcontroller operation and minimize power consumption.

The inclusion of flexible I/O programming features and Time Base funcitons along with other  features ensure that the device will find excellent use in 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: 1.8V~5.5V

    • Up to 0.5μs instruction cycle with 8MHz system clock at VDD=5V

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

    • Oscillator types

    ♦ Internal High Speed 8MHz RC – HIRC

    ♦ Internal Low Speed 32kHz RC – LIRC

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

    • Fully integrated internal oscillators require no external components

    • All instructions executed in one or two instruction cycles

    • Table read instructions

    • 63 powerful instructions

    • Up to 6-level subroutine nesting

    • Bit manipulation instruction

  • Peripheral Features

    • Flash Program Memory: 4K×15

    • RAM Data Memory: 128×8

    • Emulated EEPROM Memory: 32×15

    • Watchdog Timer function

    • Up to 18 bidirectional I/O lines

    • Programmable I/O source current for LED applications

    • Dual pin-shared external interrupts

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

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

    • 8 external channel 10-bit resolution A/D converter with internal reference voltage VVR

    • Low voltage reset function

    • Package types: 16-pin NSOP, 20-pin SOP/NSOP/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 HT66F0181 solution by flling out the form below and we will contact you immediately.

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