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Holtek HT66F004 - User Manual

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Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Revision: V1.71 Date: April 11, 2017

Table of Contents

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Holtek HT66F004 Specifications

General IconGeneral
BrandHoltek
ModelHT66F004
CategoryControl Unit
LanguageEnglish

Summary

General Description and Specifications

Pin Assignment

Shows the pin layout and function for various device packages.

Pin Description

Details the function and configuration of each pin.

Absolute Maximum Ratings

Specifies the electrical limits beyond which device damage may occur.

D.C. Characteristics

Lists DC electrical parameters and test conditions.

A.C. Characteristics

Lists AC electrical parameters and timing specifications.

ADC Electrical Characteristics

Specifies electrical parameters for the Analog to Digital Converter.

System Architecture and Core Components

Memory Organization and Access

Flash Program Memory

Stores user code and can be reprogrammed.

RAM Data Memory

Volatile internal memory for temporary data storage.

Special Function Register Description

Details registers crucial for device operation.

EEPROM Data Memory

Non-volatile memory for persistent data storage.

System Clocks, Modes, and Power Management

Oscillator

Describes internal clock sources for system operation.

System Operation Modes

Describes the six operating modes for power and performance.

Watchdog Timer and Reset Functions

Watchdog Timer

Prevents program malfunctions by resetting the MCU.

Reset and Initialisation

Covers fundamental reset types and initial device conditions.

Input;Output Ports and Pin Configuration

Input;Output Ports

Discusses flexibility and control of I/O pins.

Timer Modules (TM) Functionality

Standard Type TM - STM

Details the Standard Type Timer Module (STM) operation.

Standard Type TM Operating Modes

Details the five operating modes of the STM.

Periodic Type TM - PTM

Details the Periodic Type Timer Module (PTM) operation.

Periodic Type TM Operating Modes

Details the five operating modes of the PTM.

Analog to Digital Converter (ADC) Usage

A;D Converter Registers

Explains registers for ADC control, data, and configuration.

Interrupt System Management

Interrupt System Overview

Introduces the interrupt system, registers, and operation.

Instruction Set Reference

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