TRS3223CPW

Drivers, Receivers, Transceivers Overview

The TRS3223CPW is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3-V to 5.5-V supply and includes two drivers and two receivers. The device features ±15-kV ESD protection on bus pins, exceeding the Human-Body Model standard. It supports data signaling rates up to 250 kbit/s with a maximum driver output slew rate of 30 V/µs. The internal dual charge pump requires four external capacitors (typically 0.1 µF). It provides flexible power management through auto-powerdown and shutdown modes, reducing standby current to 1 µA typical.

Drivers, Receivers, Transceivers Feature Summary

• Integrated ±15-kV ESD protection on serial port connection pins
• Auto-powerdown functionality reduces supply current when no valid signal is detected
• INVALID output pin indicates presence or absence of valid RS-232 signals
• Accepts 5-V logic inputs while operating with a 3.3-V supply

Drivers, Receivers, Transceivers Applications

• Battery-powered systems
• PDAs and Palmtop PCs
• Notebooks and Laptops
• Hand-held equipment

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'PW' corresponds to the TSSOP-20 package variant. Confirm the temperature grade matches design requirements, as the 'C' suffix typically denotes the commercial range of 0°C to 70°C. Ensure the component status is listed as active for new designs rather than obsolete or not recommended for new use.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring low standby current and robust ESD protection in portable devices. It serves as an alternative to high-speed pin-compatible devices like the TRSF3223 if lower data rates are acceptable. Verify that the required data rate does not exceed 250 kbit/s and that the system voltage remains within the 3-V to 5.5-V operational range.

Drivers, Receivers, Transceivers Part Context

The TRS3223 belongs to the family of multichannel RS-232 transceivers designed for battery-operated equipment. Related variants include the TRS3223CDW (SOIC package) and the automotive-grade TRS3223-Q1. The CPW designation specifically identifies the plastic thin-shrink small-outline package with 20 leads.

Drivers, Receivers, Transceivers Replacement Considerations

The TRSF3223 is documented as a high-speed pin-compatible alternative offering 1 Mbit/s operation. Other similar devices in the family include the MAX3222E and TRS3222.