TRS3223IPWR

Drivers, Receivers, Transceivers Overview

The TRS3223IPWR 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 supports data signaling rates up to 250 kbit/s with a maximum slew rate of 30 V/µs. The device integrates two drivers and two receivers, featuring ±15-kV ESD protection on bus pins. It utilizes four external capacitors (typically 0.1 µF) for its dual charge-pump circuit. The IPWR variant provides an industrial temperature range of -40°C to 85°C and is housed in a 20-pin TSSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Includes auto-powerdown functionality that reduces supply current to 1 µA when no valid RS-232 signal is detected.
• Provides INVALID output pin to notify the user regarding the presence or absence of valid RS-232 signals.
• Accepts 5-V logic inputs while operating with a 3.3-V supply voltage.

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 'IPWR' to confirm the industrial temperature range (-40°C to 85°C) and TSSOP-20 package type. Ensure the procurement matches the exact part number to avoid confusion with commercial variants like the CPWR, which have different thermal specifications. Confirm RoHS compliance status through official TI documentation prior to finalizing orders.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring full-duplex RS-232 communication with low standby power consumption. The integrated charge pump eliminates the need for negative supply rails, simplifying board layout. Consider the 250 kbit/s speed limit; higher-speed requirements may necessitate alternative devices such as the TRSF3223.

Drivers, Receivers, Transceivers Part Context

The TRS3223 belongs to the family of 3-V to 5.5-V multichannel RS-232 transceivers. It serves as a direct interface between asynchronous communication controllers and serial-port connectors. The device meets TIA/EIA-232-F and ITU v.28 standards, ensuring compatibility with standard serial port implementations.

Drivers, Receivers, Transceivers Replacement Considerations

The TRSF3223 is a high-speed, pin-compatible alternative offering 1 Mbit/s operation. For automotive applications, the TRS3223-Q1 is available. Other pin-compatible options within the same family include the TRS3222 and TRS3232.