Holtek公司的HT95R35是帶DTMF接收器的8位電話通信用MCU,具有ROM為16K×16、RAM為2112B、I/O為44引腳、Stack數(shù)目為8-level、內建三個16位計時器、一個RTC計時器及四個外部中斷觸發(fā)等功能,除此之外,HT95R35在功能上更提供一個12-bitD/A及SPI/I2C通訊接口,在封裝方面則提供64LQFP的封裝型式。利用內建12-bitD/A,搭配SPI/I2C做為與外部FlashVoiceROM通訊接口,可產生多種語音,非常適合帶語音功能通訊產品的應用如多功能電話、無線
Holtek公司的HT95R35 是帶DTMF
接收器的8位電話通信用
MCU, 具有ROM為
16K×16、RAM為21
12B、I/O為44引腳、Stack數(shù)目為8-level、內建三個16位計時器、一個
RTC計時器及四個外部中斷觸發(fā)等功能,除此之外,HT95R35在功能上更提供一個12-bit D/A及
SPI/I2C通訊接口,在封裝方面則提供64 LQFP的封裝型式。利用內建12-bit D/A,搭配SPI/I2C做為與外部Fl
ash Voice ROM通訊接口,可產生
多種語音,非常適合帶語音功能通訊產品的應用如多功能電話、無線電話、
錄音機、家庭安防等。本文介紹了HT95R35主要特性和方框圖以及SPI,I2C方框圖和單端輸入與差分輸入的應用電路.
The HT95R35 MCU is an 8-bit
highperformance, RISC architecture microcontroller device specially designed for telephone applications. Device flexibility is enhanced with their internal special features such as
power-down and wake-up functions, DTMF generator, DTMF receiver, PFD driver, SPI and I2C interface, audio DAC output, etc. These features combine to ensure applications require a minimum of external components and therefore reduce overall product costs.
