TRSF3221ECPW

Drivers, Receivers, Transceivers Overview

The TRSF3221ECPW is a single-channel RS-232 transceiver manufactured by Texas Instruments, housed in a 16-pin TSSOP package. It operates on a 3V to 5.5V supply and supports data rates up to 1Mbit/s with a driver slew rate of 24V/μs to 150V/μs. The device features ±15kV IEC ESD protection and an auto-powerdown mode that reduces standby current to 1μA typical. It requires four external capacitors (typically 0.1μF) for the charge pump circuit.

Drivers, Receivers, Transceivers Feature Summary

• Integrated dual charge-pump circuit enabling operation from a single low-voltage supply without external inductors.
• Robust electrostatic discharge protection rated at ±15kV IEC contact and air-gap discharge on serial-port pins.
• Automatic power management logic that disables drivers when no valid signal is detected to conserve energy.
• Logic input compatibility allowing 5V tolerant inputs even when powered by a 3.3V supply.

Drivers, Receivers, Transceivers Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems
• Battery-powered portable devices

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'PW' corresponds to the TSSOP-16 package variant required for your PCB footprint. Confirm the temperature grade matches your environmental needs, as the 'C' suffix indicates commercial range (0°C to +70°C). Ensure the orderable part number includes the correct tape-and-reel or cut-tape designation if applicable.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a single full-duplex RS-232 channel is needed with high-speed 1Mbit/s capability. It serves as a direct replacement for lower-speed variants like the TRS3221E where higher throughput is required. Consider the TSSOP package dimensions against available board space and thermal dissipation requirements for the application.

Drivers, Receivers, Transceivers Part Context

This device belongs to the TRSF3221E family of single-channel RS-232 transceivers. The family shares identical electrical specifications but differs in packaging options, including SSOP, VQFN, and SOT-23-THN. The TRSF3221ECPW specifically denotes the commercial temperature grade version in the TSSOP-16 package.

Drivers, Receivers, Transceivers Replacement Considerations

The TRS3221E is a pin-compatible alternative within the same family but is limited to a maximum data rate of 250kbit/s. Other packages such as TRSF3221ECDB (SSOP) or TRSF3221EIRGTR (VQFN) offer the same electrical performance with different physical footprints.