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SP3221E - Intelligent +3.0V to +5.5V RS-232 Transceiver

General Description

The SP3221E is an RS-232 transceiver solution intended for portable applications such as notebook and hand held computers.

This device uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation.

Key Features

  • Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply.
  • Interoperable with EIA/TIA-232 and adheres to EIA/TIA-562 down to a +2.7V power source.
  • AUTO ON-LINE® circuitry automatically wakes up from a 1µA typical shutdown.
  • Minimum 250kbps data rate under load.
  • Regulated charge pump yields stable RS-232 outputs regardless of VCC variations.
  • ESD specifications: +15KV Human Body Model +15KV IEC61000-4-2 Air Discharge +8KV IEC61000-4.

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Other Datasheets by Exar (now MaxLinear)

Part Number Description
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SP3221E Intelligent +3.0V to +5.5V RS-232 Transceiver FEATURES • Meets true EIA/TIA-232-F Standards from a +3.0V to +5.5V power supply • Interoperable with EIA/TIA-232 and adheres to EIA/TIA-562 down to a +2.7V power source • AUTO ON-LINE® circuitry automatically wakes up from a 1µA typical shutdown • Minimum 250kbps data rate under load • Regulated charge pump yields stable RS-232 outputs regardless of VCC variations • ESD specifications: +15KV Human Body Model +15KV IEC61000-4-2 Air Discharge +8KV IEC61000-4-2 Contact Discharge EN 1 C1+ 2 V+ 3 C1- 4 C2+ 5 C2- 6 V- 7 R1IN 8 SP3221E 16 SHDN 15 VCC 14 GND 13 T1OUT 12 ONLINE 11 T1IN 10 STATUS 9 R1OUT DESCRIPTION The SP3221E is an RS-232 transceiver solution intended for portable applications such as notebook and hand held computers.