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SP1491E

更新时间： 2024-11-10 22:21:31

品牌	Logo	应用领域
西伯斯 - SIPEX		/
页数	文件大小	规格书
10页	74K
描述
Full Duplex RS-485 Transceivers

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中文翻译

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数据手册

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SP1491E 数据手册

Preliminary SP1490E/SP1491E

Full Duplex RS-485Transceivers

FEATURES

■ +5V Only

■ Low Power BiCMOS

■ Driver/Receiver Enable (SP1491E)

■ RS-485 and RS-422 Drivers/Receivers

SP1490E

8 Pin - nSOIC

■ Pin Compatible with SN75179

(SP1490E)

GND

■ Pin Compatible with SN75180

(SP1491E)

APPLICATIONS

■ Industial Networks ■ Telecom

■ Improved ESD Specifications

±15kV Human Body Model

±15kV IEC1000-4-2 Air Discharge

■ Motor Control

±8kV IEC1000-4-2 Contact Discharge

■ HVAC/ Building Control

DESCRIPTION

The SP1490E is a low power differential line driver/receiver meeting RS-485 and RS-422

standards up to 20Mbps. The SP1491E is identical to the SP1490E with the addition of driver

and receiver tri-state enable lines. Both products feature ±200mV receiver input sensitivity,

over wide common mode range. The SP1490E is available in 8-pin plastic DIP and 8-pin

NSOIC packages for operation over the commercial and industrial temperature ranges. The

SP1491E is available in 14-pin DIP and 14-pin NSOIC packages for operation over the

commercial and industrial temperature ranges.

BLOCK DIAGRAM

14 Vcc

13 NC

12 A

NC 1

Vcc 1

RO 2

8 A

RO 2

REB 3

DE 4

11 B

7 B

6 Z

DI 3

10 Z

5 Y

GND 4

DI 5

9 Y

GND 6

GND

8 NC

SP1490E

SP1491E

Date: 5/18/04

SP1490E/1491E Full Duplex RS-485 Transceivers

12 3 4 5 6 7...10

中文翻译

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