DS1489J National Semiconductor, DS1489J Datasheet

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DS1489J

Manufacturer Part Number
DS1489J
Description
Manufacturer
National Semiconductor
Datasheet

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© 2010 National Semiconductor Corporation
Quad Line Receiver
General Description
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 exceed
the specifications of MC1489/MC1489A and are pin-for-pin
replacements.
Schematic and Connection Diagrams
DS1489: R
DS1489A: R
(¼ of unit shown)
F
= 10k
F
= 2k
Order Number DS1489M, DS1489MX, DS1489N, DS1489AM, DS1489AMX or DS1489AN
5777 Version 6 Revision 4
5777
See NS Package Number M14A or N14A
Dual-In-Line or Small-Out Line Package
DS1489/DS1489A
Top View
Print Date/Time: 2010/07/14 11:50:11
Features
Four separate receivers per package
Programmable threshold
Built-in input threshold hysteresis
“Fail safe” operating mode: high output for open inputs
Inputs withstand ±30V
577702
577701
OBSOLETE
www.national.com
July 14, 2010

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DS1489J Summary of contents

Page 1

... Schematic and Connection Diagrams (¼ of unit shown) DS1489 10k F DS1489A Order Number DS1489M, DS1489MX, DS1489N, DS1489AM, DS1489AMX or DS1489AN © 2010 National Semiconductor Corporation 5777 Version 6 Revision 4 DS1489/DS1489A Features ■ Four separate receivers per package ■ Programmable threshold ■ Built-in input threshold hysteresis ■ ...

Page 2

AC Test Circuit and Voltage Waveforms www.national.com FIGURE 1. 2 5777 Version 6 Revision 4 Print Date/Time: 2010/07/14 11:50:11 577703 577704 ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage Input Voltage Range Output Load Current Power Dissipation (Note 3) Operating Temperature Range Storage Temperature Range Note 1: Derate molded DIP package 9.7 mW/°C above 25°C; derate SO package 8.33 mW/°C above 25°C. ...

Page 4

Typical Characteristics   FIGURE 2. Input Current FIGURE 3. DS1489 Input Threshold Voltage Adjustment FIGURE 4. DS1489A Input Threshold Voltage Adjustment www.national.com V = 5.0V +25°C unless otherwise noted CC A 577707 FIGURE 5. Input Threshold Voltage vs ...

Page 5

Typical Application Information *Optional for noise filtering. Noise Filter See Figure 7 577713 5777 Version 6 Revision 4 Applications Using the Response Control Pin Threshold Shift See Figures 3, 4 577714 Application of DS1488, DS1489A and UART 5 Print Date/Time: ...

Page 6

Physical Dimensions Order Number DS1489M, DS1489MX or DS1489AM, DS1489AMX www.national.com inches (millimeters) unless otherwise noted SO Package (M) NS Package Number M14A Molded Dual-In-Line Package (N) Order Number DS1489N or DS1489AN NS Package Number N14A 6 5777 Version 6 Revision ...

Page 7

Version 6 Revision 4 Print Date/Time: 2010/07/14 11:50:11 www.national.com ...

Page 8

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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