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HT95R44

更新时间： 2024-11-09 11:00:11
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台湾合泰/盛群 - HOLTEK 手机
页数 文件大小 规格书
8页 91K
描述
I/O Type Phone 8-bit MCU with DTMF Receiver & CPT Detector

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中文翻译

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HT95R44 数据手册

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HT95R44/HT95R43  
I/O Type Phone 8-bit MCU with DTMF Receiver & CPT Detector  
Features  
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MCU Features  
Multiple Operating Modes: Idle mode, Sleep mode,  
Green mode and normal mode  
·
MCU operating voltage without CPT Detector  
SYS= 3.58MHz@ 2.2V~5.5V  
Up to 1.117ms instruction cycle with 3.58MHz sys-  
tem clock at VDD=2.2V~5.5V  
f
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Program Memory: 4K´16 ~ 8K´16  
RAM Data Memory: 1152´8 ~ 2112´8  
26 bidirectional I/Os with pull-high options  
2 NMOS output-only lines  
4 external interrupt input pins  
Dual 16-bit timers with interrupts  
Timer external input  
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·
·
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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  
8-level stack  
·
64-pin LQFP package  
32768Hz system oscillator  
32768Hz to 3.58MHz frequency-up circuit  
Real time clock function  
CPT Detector Features  
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Operating voltage: 2.5V~5.5V  
Low power consumption  
CPT Band: 305~640Hz detection  
Good performance:  
Watchdog timer function  
PFD driver output  
DTMF generator  
DTMF receiver  
-8 ~ -39 dBm at VDD=2.5V  
0 ~ -27 dBm at VDD=5V  
Power-down and wake-up feature for power-saving  
operation  
General Description  
These phone MCUs are a series of 8-bit high perfor-  
mance, RISC architecture microcontroller devices spe-  
cially 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, CPT detector, PFD driver,  
etc. These features combine to ensure applications re-  
quire a minimum of external components and therefore  
reduce overall product costs.  
The call progress tone detector is for Auto-dialing sys-  
tem use. Switched capacitor technology is implemented  
into the devices to obtain good band pass filter perfor-  
mance characteristics for 305Hz to 640Hz call progress  
tones which are dual tone multi-frequency signals.  
When a CPT signal is detected it generates relative en-  
velopes for the microcontroller to determine whether to  
finish different kinds of CPT signal detections such as  
dial tones, busy tones, ring-back tones and reorder  
tones.  
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 DTMF mode Caller ID  
phone, Home Security products, deluxe feature phones,  
cordless phones, fax and answering machines, etc.  
These devices will be ideally suited for phone products  
that comply with versatile dialer specification require-  
ments for different areas or countries. These devices are  
fully supported by the Holtek range of fully functional de-  
velopment and programming tools, providing a means for  
fast and efficient product development cycles.  
Rev. 1.00  
1
March 31, 2010  
12345678

中文翻译

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