LMS202ECM/NOPB National Semiconductor, LMS202ECM/NOPB Datasheet

TXRX DUAL 5V TIA/EIA-232 16-SOIC

LMS202ECM/NOPB

Manufacturer Part Number
LMS202ECM/NOPB
Description
TXRX DUAL 5V TIA/EIA-232 16-SOIC
Manufacturer
National Semiconductor
Type
Transceiverr
Datasheet

Specifications of LMS202ECM/NOPB

Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
4.5 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
16-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LMS202ECM
© 2010 National Semiconductor Corporation
5V Single Supply TIA/EIA-232 Dual Transceivers
General Description
The LMS202 features two transmitters and two receivers for
RS-232 communication. It has a DC-to-DC converter that
permits the device to operate with only a single +5V power
supply. The on-chip DC-to-DC converter which utilizes four
external 0.1μF capacitors to generate dual internal power
supplies for RS-232 compatible output levels.
The device meet EIA/TIA-232E and CCITT V.28 specifica-
tions up to 230kbits/sec. The LMS202 is available in a 16 pin
narrow and Wide SOIC package.
Connection Diagram and Typical Circuit
200629 Version 5 Revision 2
200629
LMS202
Print Date/Time: 2010/07/12 17:35:02
Features
Applications
Single +5V power supply
230 kbps data rate
On-board DC-to-DC converter
0.1μF charge pump capacitors
Drop-in replacement to Maxim’s MAX202
POS equipment (Bar code reader)
Hand-held equipment
General purpose RS-232 communication
20062901
OBSOLETE
www.national.com
July 12, 2010

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LMS202ECM/NOPB Summary of contents

Page 1

... RS-232 compatible output levels. The device meet EIA/TIA-232E and CCITT V.28 specifica- tions up to 230kbits/sec. The LMS202 is available pin narrow and Wide SOIC package. Connection Diagram and Typical Circuit © 2010 National Semiconductor Corporation 200629 Version 5 Revision 2 LMS202 Features ■ ...

Page 2

Pin Descriptions Pin Number Pin Name Pin Function 1, 3 C1+, C1− External capacitor connection pins. Recommended external capacitor C1 = 0.1μF (6.3V Positive supply for TIA/EIA-232E drivers. Recommended external capacitor C4 = 0.1μF (6.3V C2+, ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications V− Driver Input Voltage Receiver Input Voltage Driver Output Voltage T (V− −0.3V to (V+ + 0.3V) O Receiver Output Voltage R O Short Circuit Duration, T ...

Page 4

Symbol Parameter T Transmitter Propagation DPLH Delay T DPHL V Transition Region Slew Rate T SLEW Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 200629 Version 5 Revision 2 16-Pin SOIC NS Package Number M16A 16-Pin Wide SOIC NS Package Number M16B 5 Print Date/Time: 2010/07/12 17:35:02 www.national.com ...

Page 6

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