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LMS202EIMWX View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
LMS202EIMWX 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers National-Semiconductor
National ->Texas Instruments National-Semiconductor
LMS202EIMWX Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
March 2003
LMS202E
15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual
Transceivers
General Description
The LMS202E 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 LMS202E is available in a 16
pin narrow and wide SOIC package.
The transmitter outputs and receiver inputs have ±15kV
electrostatic discharge (ESD) protection. The LMS202E sur-
vives a ± 15kV ESD event to the RS-232 input and output
pins when subjected according to Human Body Model or IEC
1000-4-2 (EN61000-4-2),air-gap specification. It survives a
±8kV discharge when subjected to IEC 1000-4-2 (EN61000-
4-2), contact specification. This device is designed for use in
harsh environments where ESD is a concern.
Features
n ESD protection for RS-232 I/O pins
±15kV-IEC1000 4-2 (EN61000-4-2) Contact
Discharge
±8kV-IEC1000 4-2 (EN61000-4-2) Air-Gap Discharge
±15kV Human Body Model
n Single +5V power supply
n 230 kbps data rate
n On-board DC-to-DC converter
n 0.1µF charge pump capacitors
n Drop-in replacement to Maxim’s MAX202E
Applications
n POS equipment (Bar code reader)
n Hand-held equipment
n General purpose RS-232 communication
Connection Diagram and Typical Circuit
© 2003 National Semiconductor Corporation DS200480
20048001
www.national.com
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