HT95R35 datasheet(1/73 Pages) HOLTEK

Part #	HT95R35

Description	Phone 8-Bit MCU with DTMF Receiver

PDF	73 Pages

Scroll/Zoom	100%

Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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HT95R35

Phone 8-Bit MCU with DTMF Receiver

Rev. 1.00

1

October 7, 2009

General Description

The HT95R35 MCU is an 8-bit high performance, RISC

architecture microcontroller device specially designed

for telephone applications. Device flexibility is en-

hanced with their internal special features such as

power-down and wake-up functions, DTMF generator,

DTMF receiver, PFD driver, SPI and I

2C interface, audio

DAC output, etc. These features combine to ensure ap-

plications require a minimum of external components

and therefore reduce overall product costs.

Having the advantages of low-power consumption,

high-performance, I/O flexibility as well as low-cost,

these devices have the versatility to suit a wide range of

application possibilities such as deluxe feature phone,

cordless phones, fax and answering machines, etc.

The device is best suited for phone products that com-

ply with versatile dialer specification requirements for

different areas or countries. The device is fully sup-

ported by the Holtek range of fully functional develop-

ment and programming tools, providing a means for fast

and efficient product development cycles.

Features

· Operating voltage:

fSYS= 3.58MHz: 2.2V~5.5V

fSYS= 14.32MHz: 4.5V~5.5V

· 16K´16 OTP type Program Memory

· 2112´8 Data Memory

· 42 bidirectional I/Os with pull-high options

· 2 NMOS output-only lines

· External interrupt input

· Three 16-bit timers with interrupts

· Timer external input

· 8-level stack

· 32768Hz system oscillator

· 32768Hz to 14.32MHz frequency-up PLL circuit

· Real time clock function

· Watchdog timer function

· PFD driver output

· Dual Serial Interfaces: SPI and I2C

· DTMF generator

· DTMF receiver

· 12-bit Audio DAC output

· Power-down and wake-up feature for power-saving

operation: Idle mode, Sleep mode, Green mode and

normal mode

· Up to 0.28ms instruction cycle with 14.32MHz system

clock at VDD=4.5V~5.5V

· Bit manipulation instructions

· Table read function

· 63 powerful instructions

· All instructions executed in 1 or 2 machine cycles

· Low voltage reset function

· Supported by comprehensive suite of hardware and

software tools

· 64-pin LQFP package

Technical Document

· Application Note

- HA0075E MCU Reset and Oscillator Circuits Application Note

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HT95R35 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

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