MC145444

更新时间： 2024-11-19 22:49:31

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		调制解调器
页数	文件大小	规格书
12页	165K
描述
Single-Chip 300-Baud Modem

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中文翻译

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数据手册

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MC145444 数据手册

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by MC145444/D

SEMICONDUCTOR TECHNICAL DATA

Advance Information

H SUFFIX

PLASTIC DIP

CASE 804

MC145444 is a silicon gate CMOS frequency shift keying (FSK) modem

intended for use with telemeter systems or remote control systems over the

telephone network.

This device is compatible with CCITT V.21 and contains the entire circuit that

provides a full–duplex or half–duplex 300–baud data communication over a pair

of telephone lines. This device also includes the DTMF generator and call

progress tone detector (CPTD).

The differential line driver has the capability of driving 0 dBm into a 600 Ω load

with a single +5 V power supply.

DW SUFFIX

SOG PACKAGE

CASE 751D

The transmit level is controlled by the programmable attenuator in 1 dB steps.

Devices functions are controlled through a 3–wire serial interface.

ORDERING INFORMATION

MC145444P

Plastic DIP

MC145444DW SOG Package

•

Capable of Driving 0 dBm into a 600 Ω Load

DTMF Generator On–Chip

Imprecise Call Progress Detector On–Chip

A Transmit Attenuator Programmable in 1 dB Steps

3–Wire Serial Interface

PIN ASSIGNMENT

Compatible with CCITT V.21

RxBO

FTLC

RxGC

RxA

2100 Hz Answer Tone Generator On–Chip

Analog Loopback Configuration for Self Test

Simplex, Half–Duplex, and Full–Duplex Operation

GNDA

CDA

TxA1

TxA2

GND

TLA

DSI

ENB

SCK

DATA

TxD

RxD

This document contains information on a new product. Specifications and information herein are subject to change without notice.

REV 0

8/95

Motorola, Inc. 1995

MOTOROLA

MC145444

12 3 4 5 6 7...12

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与MC145444相关器件

型号	品牌	获取价格	描述	数据表
MC145444DW	MOTOROLA	获取价格	Single-Chip 300-Baud Modem
MC145444DWR2	MOTOROLA	获取价格	Modem, 0.3kbps Data, CMOS, PDSO20, SOG-20
MC145444H	MOTOROLA	获取价格	Modem, 0.3kbps Data, CMOS, PDIP20, PLASTIC, DIP-20
MC145444P	MOTOROLA	获取价格	Single-Chip 300-Baud Modem
MC145446	MOTOROLA	获取价格	Single-Chip 300-Baud Modem with DTMF Transceiver
MC145446A	MOTOROLA	获取价格	Single-Chip 300-Baud Modem with DTMF Transceiver
MC145446AFW	MOTOROLA	获取价格	Single-Chip 300-Baud Modem with DTMF Transceiver
MC145446AFWEL	MOTOROLA	获取价格	暂无描述
MC145447	MOTOROLA	获取价格	Calling Line Identification(CLID) Receiver with Ring Detector
MC145447DW	MOTOROLA	获取价格	Calling Line Identification(CLID) Receiver with Ring Detector