參數(shù)資料
型號(hào)： W925E240
英文描述： Telephone Controller
中文描述： 電話控制器
文件頁數(shù)： 3/66頁
文件大?。?/td> 930K
代理商： W925E240
W925E/C240
8-bit CID Microcontroller
Revision : A6
-3-
Release Date : 2002/7/2
1
The W925E/C240 is an all-in-1 single 8-bit micro-controller with widely used Calling Identity
Delivery (CID) function. The 8-bit CPU core is based on the 8051 family; therefore, all the
instructions are compatible to the 8051 series. The CID part consists FSK decoder, DTMF
receiver, CPE* Alert Signal (CAS) detector and Ring detector. Also built-in DTMF generator and
FSK generator with baud rate 1200 bps (bits/sec). Using W925E/C240 can easily implement the
CID adjunct box and the feature phone or Short Message Service (SMS) phone with CID function.
The main features are listed in the next section.
GENERAL DESCRIPTION
2
APPLICATION
: The
SMS
phone with CID function and CID adjunct box.
CPU
: 8-bit micro-controller is similar to the 8051 family.
- Operating voltage:
μ
C: 2.2 to 5.5 volt.
CID: 3.0 to 5.5 volt.
Dual-clock operation:
- Main oscillator: 3.58MHz crystal for CID and DTMF function. And built-in RC oscillator.
- Sub oscillator: 32768Hz crystal.
- Main and sub oscillators are enable/disable by bit control individually.
ROM
: 256K bytes internal flash EEPROM/MASK ROM type.
- Up 128K bytes for program ROM.
- Total 256K bytes for look-up table ROM.
- Separate 256K into 4 pages, each page is 64K addressable.
RAM
:
- 256 bytes on chip scratch-pad RAM.
- 8K bytes on chip RAM for MOVX instruction.
CID
- Compatible with Bellcore TR-NWT-000030 & SR-TSV-002476, British Telecom(BT)
SIN227, U.K. Cable Communication Association(CCA) specification.
- FSK modulator/demodulator: for Bell 202 and ITU-T V.23 FSK with 1200 baud rate.
- CAS detector: for dual tones of Bellcore CAS and BT Idle State and Loop State Dual
Tone Alert Signal (DTAS).
- DTMF generator/receiver; DTMF receiver can be programmed as a tone detector.
- Ring detector: for line reversal for BT, ring burst for CCA or ring signal for Bellcore.
- Two independent OP amps with adjustable gain for Tip/Ring and Telephone Hybrid
connections.
I/O
: 40 I/O pins.
- P0: Bit and byte addressable. I/O mode can be bit controlled. Open drain type.
- P1~P3: Bit and byte addressable. Pull high and I/O mode can be bit controlled.
- P4: Byte addressable . Pull high and I/O mode can be bit controlled.
note: ”CPE*” Customer Premises Equipment
FEATURES
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W925E240FG 功能描述:IC MCU 8-BIT W/CID 100-PQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W925 標(biāo)準(zhǔn)包裝:250 系列:80C 核心處理器:8051 芯體尺寸:8-位 速度:16MHz 連通性:EBI/EMI，I²C，UART/USART 外圍設(shè)備:POR，PWM，WDT 輸入/輸出數(shù):40 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:ROMless EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:68-LCC（J 形引線） 包裝:帶卷 (TR)
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W925EP01 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER
W925EP01FG 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT CID MICROCONTROLLER
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