DS8820

更新时间： 2024-11-06 22:40:39

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
8页	253K
描述
Dual Line Receiver

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数据手册

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DS8820 数据手册

May 1999

DS7820A/DS8820A

Dual Line Receiver

operating temperature range (−55˚C to +125˚C and 0˚C to

70˚C respectively), over the entire input voltage range, for

General Description

The DS7820A and the DS8820A are improved performance

digital line receivers with two completely independent units

fabricated on a single silicon chip. Intended for use with digi-

tal systems connected by twisted pair lines, they have a dif-

ferential input designed to reject large common mode sig-

nals while responding to small differential signals. The output

is directly compatible with TTL or LS integrated circuits.

10% supply voltage variations.

Features

n Operation from a single +5V logic supply

n Input voltage range of 15V

n Strobe low forces output to “1” state

n High input resistance

n Fanout of ten with TTL integrated circuits

n Outputs can be wire OR’ed

n Series 54/74 compatible

The response time can be controlled with an external capaci-

tor to reject input noise spikes. The output state is a logic “1”

for both inputs open. Termination resistors for the twisted

pair line are also included in the circuit. Both the DS7820A

and the DS8820A are specified, worst case, over their full

Connection Diagram

Dual-in-Line Package

DS005797-2

Note 1: Pin 7 connected to bottom of cavity package.

Top View

Order Number DS7820AJ or DS8820AN See NS Package Number J14A or N14A

For Complete Military 883 Specificatons, See RETS Data Sheet.

Order Number DS7820AJ/883

See NS Package Number J14A or W14B

DS005797

www.national.com

12 3 4 5 6 7 8

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