参数资料
型号: M-8888-01SM
厂商: CLARE INC
元件分类: 信令电路
英文描述: DTMF Transceiver
中文描述: TELECOM, DTMF SIGNALING CIRCUIT, PDSO20
封装: PLASTIC, SOIC-20
文件页数: 1/14页
文件大小: 451K
代理商: M-8888-01SM
www.clare.com
DS-M8888-R1
M-8888
DTMF Transceiver
1
Features
Advanced CMOS technology for low power con-
sumption and increased noise immunity
Complete DTMF transmitter/receiver in a single
chip
Standard 8051, 8086/8 microprocessor port
Central office quality and performance
Adjustable guard time
Automatic tone burst mode
Call progress mode
Single +5 Volt power supply
20-pin DIP and SOIC packages
2 MHz microprocessor port operation
Inexpensive 3.58 MHz crystal
Applications
Paging systems
Repeater systems/mobile radio
Interconnect dialers
PBX systems
Computer systems
Fax machines
Pay telephone
Credit card verification
Description
The M-8888 is a complete DTMF Transmitter
Receiver that features adjustable guard time, auto-
matic tone burst mode, call progress mode, and a fully
compatible 8051, 8086/8 microprocessor interface.
The receiver portion is based on the industry standard
M-8870 DTMF Receiver, while the transmitter uses a
switched-capacitor digital-to-analog converter for low-
distortion, highly accurate DTMF signaling. Tone
bursts can be transmitted with precise timing by mak-
ing use of the automatic tone burst mode. To analyze
call progress tones, a call progress filter can be select-
ed by an external microprocessor.
Ordering Information
Pin Connections
Block Diagram
Part #
Description
M-8888-01P
20-pin plastic DIP
M-8888-01SM
20-pin plastic SOIC
M-8888-01T
20-pin plastic SOIC,Tape and Reel
相关PDF资料
PDF描述
M-8888-01T DTMF Transceiver
M-8888-01 DTMF Transceiver
M-88L70-01P 3V DTMF Receiver
M-88L70-01S 3V DTMF Receiver
M-88L70-01T 3V DTMF Receiver
相关代理商/技术参数
参数描述
M-8888-01T 功能描述:IC TRANSCEIVER DTMF CMOS 20-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 电信 系列:- 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 06/Feb/2012 标准包装:750 系列:*
M888-BDEB 制造商:SECO 功能描述:QUADMO747-GSERIES W/ CPU T40N 1.0GHZ D. C. @9W, DDR3 2GB, SS - Boxed Product (Development Kits)
M888-CCDA 制造商:SECO 功能描述:QUADMO747-GSERIES W/CPU T44R 1,2GHZ S. C.@9W, DDR3 1GB, SSD - Bulk
M888-CCDB 制造商:SECO 功能描述:QUADMO747-GSERIES W/CPU T44R 1,2GHZ S. C.@9W, DDR3 1GB, SSD - Bulk
M888-CCEA 制造商:SECO 功能描述:QUADMO747-GSERIES W/CPU T44R 1,2GHZ S. C.@9W, DDR3 1GB, SSD - Bulk