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(yè)數(shù)： 58/66頁(yè)
文件大?。?/td> 930K
代理商： W925E240
W925E/C240
8-bit CID Microcontroller
Revision : A6
-58-
Release Date : 2002/7/2
Tip/Ring
FSKE
FCD
FDR
FCLK
FDATA
ALGO
CPE unmutes handset and
enable keypad
H
CAS
tREC
tABS
B
C
ACK
D
CPE goes off-hook
E
F
G
Mark
Message
CPE sends
CPE mutes handset & disables keypad
...
Data
CIDF
...
A = 40 - 50mS
B = 80 - 85mS
C <= 100mS
D = 65 - 75mS
E = 5 - 100mS
F = 40 - 75mS
G = depends on data length
H <= 100mS
ASE
Start Point
A
Note 1
Note 3
Note 2
Note 4
Note 5
Figure 6-27 Input and Output Timing of BT Loop State (Off-hook) Data Transmission
Note:
1. In a CPE where AC power is not available, the designer may choose to switch over to line power when the CPE
goes off-hook and use battery power while on-hook.
2. The FSKE bit may be set low to prevent the alert tone, speech or other FSK in-band noise decoded by FSK
demodulator and give false data when the dual tone alert signal is expected. If the FSKE pin can not controlled by
micro-controller, the FSKE bit must always placed in high state and the micro controller must give up the FSK
decoded data when the FSK signal is not expected.
3. The exchange will have already disabled the speech path to the distant customer in both transmission directions.
4. The FSKE should be set high as soon as the CPE has finished sending the acknowledge signal ACK.
5. The FSKE may be set low after the last byte (check sum) has been decoded or FCD has become inactive.
6. In an unsuccessful attempts where the exchange does not send the FSK signal, the CPE should disable FSKE,
un-mute the handset and enable the keypad after this interval.
相關(guān)PDF資料
PDF描述
W925C625 Telephone Controller
W925E625 Telephone Controller
W9320 A-Law/u-Law CODEC
W9320S A-Law/u-Law CODEC
W942508BH DRAM
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)
W925E625 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-bit CID MICROCONTROLLER
W925E625FG 功能描述:IC MCU 8-BIT W/CID 160-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)
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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*