SP3221E: Intelligent +3.0 V to +5.5 V RS-232 Trans

By MaxLinear 432

SP3221E: Intelligent +3.0 V to +5.5 V RS-232 Trans

Exar's AUTO ON-LINE® feature allows the device to enter a low-power (less than 1 μA) shutdown state when the data cable is removed or if there is no activity on the bus. The transceiver automatically wakes up when the cable is connected or the remote device sends data.

  • AUTO ON-LINE circuitry automatically wakes up from a 1 μA typical shutdown
  • Regulated charge pump yields stable RS-232 outputs regardless of VCC variations
  • Meets RS-232 from a +3.0 V to +5.5 V power supply, and EIA-562 down to +2.7 V
  • 250 kbps data rate under load
  • ESD specifications:
    • ±15 KV Human Body Model
    • ±15 KV IEC61000-4-2 Air Discharge
    • ±8 KV IEC61000-4-2 Contact Discharge
  • Low-power serial communications
  • Portable serial devices
  • Point of sale equipment
  • Embedded PCs