TRS3221EIRGTR

Drivers, Receivers, Transceivers Overview

The TRS3221EIRGTR is a single-channel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3V to 5.5V supply voltage and supports data signaling rates up to 250kbit/s. The device integrates ±15kV Human-Body Model ESD protection on RS-232 pins and meets TIA/EIA-232-F standards. It utilizes a charge pump requiring four external capacitors for voltage generation. The component is housed in a 16-pin VQFN package (RGT) with dimensions of 3mm x 3mm. Typical supply current is 1mA, reducing to 1μA in powered-off mode.

Drivers, Receivers, Transceivers Feature Summary

• Integrated ±15kV HBM and ±8kV IEC contact discharge ESD protection on RS-232 pins
• Auto-powerdown feature automatically disables drivers when no valid signal is detected to minimize power consumption
• Near chip-scale 16-pin VQFN package reduces board space by approximately 82% compared to TSSOP
• INVALID output pin indicates receiver input status based on voltage thresholds

Drivers, Receivers, Transceivers Applications

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

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'IRGTR' corresponds to the VQFN-16 package and reel packaging configuration. Confirm the temperature grade matches design requirements, as the datasheet specifies distinct operating ranges for commercial and industrial variants. Ensure external capacitor values align with the selected supply voltage to maintain signal integrity.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring a compact footprint and low standby current. The device supports 5V logic inputs even with a 3.3V supply, facilitating interface flexibility. For higher data rate requirements up to 1Mbit/s, consider the pin-compatible TRSF3221E alternative. Verify that the layout accommodates the required four external capacitors for the charge pump circuit.

Drivers, Receivers, Transceivers Part Context

The TRS3221E belongs to the TRS3221 family of single-channel RS-232 transceivers. It serves as a low-cost, space-saving solution for serial communication interfaces. The RGT suffix denotes the 16-pin VQFN package variant, which offers superior thermal performance and reduced physical size compared to SSOP or TSSOP packages within the same product line.

Drivers, Receivers, Transceivers Replacement Considerations

The TRSF3221E is a pin-compatible high-speed alternative offering 1Mbit/s data rates. Other single-channel RS-232 transceivers may require different external capacitor configurations or lack integrated ESD protection.