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參數(shù)資料
| 型號(hào)： | MC145444DW |
| 廠商： | MOTOROLA INC |
| 元件分類： | 調(diào)制器/解調(diào)器 |
| 英文描述： | Single-Chip 300-Baud Modem |
| 中文描述： | 0.3 kbps DATA, MODEM, PDSO20 |
| 封裝： | SOG-20 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大小： | 161K |
| 代理商： | MC145444DW |
MC145444
MOTOROLA
1
Advance Information
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
load
with a single +5 V power supply.
The transmit level is controlled by the programmable attenuator in 1 dB steps.
Devices functions are controlled through a 3–wire serial interface.
Capable of Driving 0 dBm into a 600
Load
DTMF Generator On–Chip
Imprecise Call Progress Detector On–Chip
A Transmit Attenuator Programmable in 1 dB Steps
3–Wire Serial Interface
Compatible with CCITT V.21
2100 Hz Answer Tone Generator On–Chip
Analog Loopback Configuration for Self Test
Simplex, Half–Duplex, and Full–Duplex Operation
This document contains information on a new product. Specifications and information herein are subject to change without notice.
Order this document
by MC145444/D
SEMICONDUCTOR TECHNICAL DATA
H SUFFIX
PLASTIC DIP
CASE 804
DW SUFFIX
SOG PACKAGE
CASE 751D
20
1
20
1
TLA
CDA
GNDA
FTLC
RxBO
RxD
SD
X2
X1
GND
5
4
3
2
1
10
9
8
7
6
14
15
16
17
18
19
20
11
12
13
DSI
TxA2
TxA1
RxA
RxGC
TxD
DATA
SCK
ENB
VCC
PIN ASSIGNMENT
ORDERING INFORMATION
MC145444P
MC145444DW
Plastic DIP
SOG Package
REV 0
8/95
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC14544 | Single-Chip 300-Baud Modem |
| MC145444 | Single-Chip 300-Baud Modem |
| MC145444P | Single-Chip 300-Baud Modem |
| MC145446AFW | Single-Chip 300-Baud Modem with DTMF Transceiver |
| MC145446A | Single-Chip 300-Baud Modem with DTMF Transceiver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC145446AFW | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: |
| MC145447DW | 制造商:Motorola Inc 功能描述:CALLER NUMBER ID CIRCUIT, 16 Pin, Plastic, SOP |
| MC145447DWR2 | 制造商:Motorola Inc 功能描述:TELEPHONE MULTIFUNCTION CKT, 16 Pin Plastic SOP |
| MC145447P | 制造商:Motorola Inc 功能描述: |
| MC145475DW | 制造商:Motorola Inc 功能描述:DATACOM, ISDN CONTROLLER, PDSO28 |
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