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title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22" title="HT83F22">HT83F22是錄/放音的8位閃存MCU,，內建閃存程序ROM，高速SPI與I2C接口,，AGC,，12位ADC，電壓單音12位電壓型DAC與功率放大器,，具有極佳的抗噪聲能力與工業(yè)規(guī)格溫度范圍 (-40℃～+85℃),，主要用在家庭防護、防盜器材,、健康醫(yī)療,、語音家電、玩具禮品等,。本文介紹了HT83F22主要特性,，包括CPU和外設特性，方框圖以及應用電路,。

The HT83F22 is an A/D type 8-bit high performance Flash Memory MCU which includes a digital voice recorder, synthesizer and tone generator. It is specifically designed for applications which require multiple I/Os and sound effects, such as voice and melodies. Additionally, it can provide various sampling rates and beats, tone levels, tempos for speech synthesisers and melody generators. Furthermore, with the internal amplifer, auto gain control, SCF filter and the fast 12-bit A/D converter features, this device provides a means of implementing digital audio recorder applications. Offering users the convenience of Flash Memory multi-programming features, this device also includes a wide range of functions and features. Analog features include a multi-channel 12-bit A/D converter and comparator. 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 or I2C interface functions, two 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.It also includes an integrated high quality, voltage type DAC output, a two-stage amplifier with Auto Gain Control for microphone input signal amplification and a power amplifier for speaker driving. The external interrupt can be triggered with falling edges or both falling and rising edges.

A full choice of HXT, LXT, ERC, 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 minimise 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 voice recorder, answering machine, electronic metering, environmental monitoring, handheld instruments, household appliances, electronically controlled tools, motor driving in addition to many others.

This device is fully supported by the Holtek range of fully functional development and programming tools, providing a means for fast and efficient product development cycles.

HT83F22主要特性：

CPU 特性：

●●Operating Voltage: fSYS= 8MHz: 2.2V~5.5V fSYS= 12MHz: 2.7V~5.5V fSYS= 20MHz: 4.5V~5.5V

●●Up to 0.2μs instruction cycle with 20MHz system clock at VDD=5V

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

●●Five oscillators:

External Crystal - HXT External 32.768kHz Crystal - LXT External RC - ERC Internal RC - HIRC Internal 32kHz RC - LIRC

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

●●Fully integrated internal 4MHz, 8MHz and 12MHz oscillator requires no external components

●●All instructions executed in one or two instruction cycles

●●Table read instructions

●●63 powerful instructions

●●Up to 8-level subroutine nesting

●●Bit manipulation instruction

外設特性：

●●Flash Program Memory: 4Kx16

●●RAM Data Memory: 384x8

●●Watchdog Timer function

●●Up to 24 bidirectional I/O lines

●●Software controlled 4-SCOM lines LCD driver with1/2 bias

●●Multiple pin-shared external interrupts

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

●●Single 8-bit programmable Timer/Event Counter with overflow interrupt and prescaler

●●Two Serial Interface Modules with Dual SPI and I2C interfaces

●●Single Comparator

●●Dual Time-Base functions for generation of fixed time interrupt signals

●●Up to 8 channel 12-bit resolution A/D converter

●●Single channel 12-bit D/A converter

●●Output Signal Power Amplifier

●●Input Signal Amplifier with Automatic Gain Control - AGC

●●Switch Capacitor Filter function

●●Low voltage reset function

●●Low voltage detect function

●●Package types: 48LQFP

圖1,。HT83F22方框圖

圖2。HT83F22應用電路圖
詳情請見：
http://www.holtek.com.tw/PDF/consumer/ht83F22v100.pdf