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MC145707P

更新时间： 2024-01-29 22:26:19

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		驱动器
页数	文件大小	规格书
12页	232K
描述
5 Volt Only Driver/Receiver with an Integrated Standby Mode

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数据手册

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MC145707P 数据手册

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by MC145705/D

SEMICONDUCTOR TECHNICAL DATA

Product Preview

P SUFFIX

PLASTIC DIP

CASE 738

EIA–232–E and CCITT V.28

The MC145705/06/07 are a series of silicon–gate CMOS transceiver ICs that

fulfill the electrical specifications of EIA–232–E and CCITT V.28 while operating

from a single + 5 V power supply. These transceiver series are high

performance and low power consumption devices that are equipped with

standby and output enable function.

A voltage doubler and inverter convert the + 5 V to ± 10 V. This is

accomplished through an on–board 20 kHz oscillator and four inexpensive

external electrolytic capacitors.

The MC145705 is composed of two drivers and three receivers, the

MC145706 has three drivers and two receivers, and the MC145707 has three

drivers and three receivers. These drivers and receivers are virtually identical to

those of the MC145407.

DW SUFFIX

SOG PACKAGE

CASE 751D

P SUFFIX

PLASTIC DIP

CASE 724

Available Driver/Receiver Combinations

DW SUFFIX

SOG PACKAGE

CASE 751E

Device

Drivers

Receivers

No. of Pins

MC145705

MC145706

MC145707

ORDERING INFORMATION

MC145705P

MC145706P

MC145707P

Plastic DIP

Drivers:

•

± 7.5 Output Swing

300 Ω Power–Off Impedance

Output Current Limiting

TTL and CMOS Compatible Inputs

Three–State Outputs During Standby Mode

Hold Output OFF (MARK) State by TxEN Pin

MC145705DW

MC145706DW

MC145707DW

SOG Package

Receivers:

•

± 25 V Input Range

3 to 7 kΩ Input Impedance

0.8 V Hysteresis for Enhanced Noise Immunity

Three–State Outputs During Standby Mode

Charge Pumps:

•

+ 5 to ± 10 V Dual Charge Pump Architecture

Supply Outputs Capable of Driving Three Drivers on the MC145403/06

Simultaneously

•

Requires Four Inexpensive Electrolytic Capacitors

On–Chip 20 kHz Oscillators

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

REV 1

8/95

Motorola, Inc. 1995

MOTOROLA

MC145705•MC145706•MC145707

12 3 4 5 6 7...12

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