SP3232EBCA-L/TR

Drivers, Receivers, Transceivers Overview

The MaxLinear SP3232EBCA-L/TR is a true RS-232 transceiver operating from a single 3.0V to 5.5V power supply. It features two drivers and two receivers, delivering full-duplex communication with a minimum data rate of 120kbps under full load and up to 235kbps typical performance. The device utilizes an internal charge pump requiring only four 0.1µF external capacitors to generate ±5.5V levels. It lacks a shutdown mode and operates within a commercial temperature range of 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Complies with EIA/TIA-232-F standards using a single low-voltage power supply
• Integrates a high-efficiency charge pump for generating RS-323 voltage levels
• Provides enhanced electrostatic discharge protection on all pins
• Includes internal pull-down resistors on receiver inputs

Drivers, Receivers, Transceivers Applications

• Portable and handheld computer serial interfaces
• Notebook and palmtop computer communication ports
• Battery-powered equipment requiring low component count

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and lead-free status against the manufacturer's current ordering information. Confirm that the absence of a shutdown pin aligns with the system design requirements, as this variant does not support low-power standby modes. Ensure environmental compliance documentation matches the project specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a non-shutdown RS-232 interface is required for 3.3V or 5V systems. It serves as a direct alternative to legacy parts while reducing external capacitor counts. Consider the SP3222E series if active low-power shutdown functionality is necessary for battery conservation in portable designs.

Drivers, Receivers, Transceivers Part Context

This part belongs to the SP3232E series, which provides 2-driver and 2-receiver capabilities. Unlike the SP3222E counterpart, it does not include a shutdown control input. The series is designed to replace older RS-232 transceivers by eliminating the need for dual power supplies through integrated charge pump technology.

Drivers, Receivers, Transceivers Replacement Considerations

SP3232ECA-L/TR

Drivers, Receivers, Transceivers FAQ

Does the SP3232EBCA-L/TR support a low-power shutdown mode?

No, the SP3232E series does not feature a shutdown mode. Only the SP3222E variant includes a shutdown control input to reduce supply current.

What is the minimum number of external capacitors required?

Four external capacitors are required to operate the internal charge pump circuitry.

How does the device handle unconnected receiver inputs?

Internal 5kΩ pull-down resistors commit the receiver output to a HIGH state if the input is left unconnected.