LMS202E Datasheet, PDF (1/14 Pages) National Semiconductor (TI) – 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers

LMS202E
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SNLS160D – DECEMBER 2002 – REVISED APRIL 2013
LMS202E 15KV ESD Rated, 5V Single Supply TIA/EIA-232 Dual Transceivers
Check for Samples: LMS202E
FEATURES
1
•2 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
• 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 MAX202E
APPLICATIONS
• POS Equipment (Bar code reader)
• Hand-Held Equipment
• General Purpose RS-232 Communication
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
specifications 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 survives 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.
CONNECTION DIAGRAM AND TYPICAL CIRCUIT
1
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2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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