DS1489A

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DS1489A 数据手册

May 1998

DS1489/DS1489A

Quad Line Receiver

General Description

Features

n Four separate receivers per package

n Programmable threshold

n Built-in input threshold hysteresis

The DS1489/DS1489A are quad line receivers designed to

interface data terminal equipment with data communications

equipment. They are constructed on a single monolithic sili-

con chip. These devices satisfy the specifications of EIA

Standard RS-232D. The DS1489/DS1489A meet and ex-

ceed the specifications of MC1489/MC1489A and are

pin-for-pin replacements.

n “Fail safe” operating mode: high output for open inputs

n Inputs withstand 30V

Schematic and Connection Diagrams

DS005777-1

(¹⁄

DS1489: R

4 of unit shown)

10k

DS1489A: R

Dual-In-Line Package

DS005777-2

Top View

Order Number DS1489M, DS1489N

DS1489AM or DS1489AN

See NS Package Number M14A or N14A

DS005777

www.national.com

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型号	品牌	获取价格	描述	数据表
DS1489AJ	ETC	获取价格	Line Receiver
DS1489AJ/A+	ETC	获取价格	Line Receiver
DS1489AM	NSC	获取价格	Quad Line Receiver
DS1489AMX	ETC	获取价格	Line Receiver
DS1489AN	NSC	获取价格	Quad Line Receiver
DS1489AN	ROCHESTER	获取价格	QUAD LINE RECEIVER, PDIP14, DIP-14
DS1489AN/A+	ETC	获取价格	Line Receiver
DS1489AN/B+	ETC	获取价格	Line Receiver
DS1489J	TI	获取价格	QUAD LINE RECEIVER, CDIP14, CERAMIC, DIP-14
DS1489J/A+	ETC	获取价格	Line Receiver