Holtek公司的HT95R35是带DTMF接收器的8位电话通信用MCU,具有ROM为16K×16、RAM为2112B、I/O为44引脚、Stack数目为8-level、内建三个16位计时器、一个RTC计时器及四个外部中断触发等功能,除此之外,HT95R35在功能上更提供一个12-bitD/A及SPI/I2C通讯接口,在封装方面则提供64LQFP的封装型式。利用内建12-bitD/A,搭配SPI/I2C做为与外部FlashVoiceROM通讯接口,可产生多种语音,非常适合带语音功能通讯产品的应用如多功能电话、无线
Holtek公司的HT95R35 是带DTMF
接收器的8位电话通信用
MCU, 具有ROM为
16K×16、RAM为21
12B、I/O为44引脚、Stack数目为8-level、内建三个16位计时器、一个
RTC计时器及四个外部中断触发等功能,除此之外,HT95R35在功能上更提供一个12-bit D/A及
SPI/I2C通讯接口,在封装方面则提供64 LQFP的封装型式。利用内建12-bit D/A,搭配SPI/I2C做为与外部Fl
ash Voice ROM通讯接口,可产生
多种语音,非常适合带语音功能通讯产品的应用如多功能电话、无线电话、
录音机、家庭安防等。本文介绍了HT95R35主要特性和方框图以及SPI,I2C方框图和单端输入与差分输入的应用电路.
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.
