MAX3223IPWR

Overview

The MAX3223IPWR is a multichannel RS-232 line driver and receiver manufactured by Texas Instruments. It operates from a single 3-V to 5.5-V power supply and includes two drivers and two receivers. The device supports data rates up to 250 kbps and complies with EIA/TIA-232-F, V.28, and V.24 standards. It features ±15-kV electrostatic discharge (ESD) protection on all RS-232 lines. The IPWR suffix indicates a TSSOP-20 package. The component is designed for low-power applications with an automatic shutdown feature that reduces current consumption during idle periods.

Feature Summary

• Integrated dual charge pumps enable operation from a single 3-V to 5.5-V supply without requiring external negative voltage sources.
• Built-in automatic shutdown circuitry minimizes quiescent current when the RS-232 bus is inactive, extending battery life in portable devices.
• Robust ±15-kV ESD protection on transmitter outputs and receiver inputs ensures reliability against static discharge events.

Applications

• Portable computers and handheld terminals requiring serial communication interfaces
• Industrial control systems and data acquisition equipment
• Modems and fax machines utilizing standard RS-232 protocols

Procurement Notes

Verify the specific revision level and tape-and-reel specifications directly with the manufacturer or authorized distributors. Confirm RoHS compliance status for the exact part number variant, as manufacturing processes may update environmental certifications over time. Ensure the TSSOP-20 footprint matches the target PCB design before finalizing procurement orders.

Selection Notes

Select this component for designs requiring dual-channel RS-232 connectivity within a compact surface-mount package. It is suitable for applications needing high ESD immunity and low standby power consumption. Compare pinout compatibility with existing MAX3223 variants if replacing legacy components. Verify that the 250 kbps data rate meets the system's throughput requirements.

Part Context

This device belongs to the MAX3223 family of multichannel RS-232 transceivers. It shares functional similarities with the TRS3223 series but differs in specific electrical characteristics and branding lineage from Maxim Integrated products now under Texas Instruments. The IPWR designation specifically identifies the plastic TSSOP-20 package option within this product line.

Replacement Considerations

The TRS3223IPWR is a direct functional replacement offering identical pinouts and similar electrical performance. Verify that the substitute component meets the same temperature range and ESD protection specifications required by the original design constraints.