MAX3223EIPW

Overview

The MAX3223EIPW is a dual-channel RS-232 transceiver manufactured by Texas Instruments, designed for multi-voltage systems. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device integrates two drivers and two receivers in full-duplex configuration. It utilizes TSSOP-20 surface-mount packaging. Key electrical specifications include a maximum power supply voltage of 5.5 V, an operating supply current of 1 mA, and an output current capability of 35 mA. The component features ESD protection rated at 15 kV and includes a shutdown function to minimize power consumption.

Feature Summary

• Integrates dual independent drivers and receivers for simultaneous bidirectional communication on RS-232 lines.
• Incorporates internal charge pump circuitry to generate required RS-232 voltage levels from single low-voltage supplies.
• Provides robust electrostatic discharge protection on all pins to safeguard against human body model events.
• Features a dedicated shutdown pin that reduces supply current significantly when the device is not actively transmitting.

Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Portable battery-powered equipment utilizing 3.3 V or 5 V logic levels.
• Modem and fax machine interface circuits.
• Point-of-sale terminals and barcode scanners.

Procurement Notes

Verify the specific suffix IPW confirms the TSSOP-20 package variant during sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Check for obsolescence notices as availability may be limited compared to newer series replacements. Ensure ordering quantities align with distributor minimums if purchasing non-standard pack sizes.

Selection Notes

Select this component when a dual-channel RS-232 solution is required for 3 V to 5.5 V applications. The TSSOP-20 package suits designs needing compact surface-mount footprints. Compare against TRS3223E variants if extended temperature ranges or different pinouts are unnecessary. Verify that the 500 kb/s data rate meets system timing requirements before finalizing the bill of materials.

Part Context

This part belongs to the MAX3223E family of multichannel RS-232 line drivers and receivers. It shares functional similarities with the MAX3223IDBR but differs in package type, utilizing TSSOP instead of SSOP. The 'E' designation typically indicates enhanced performance characteristics such as higher ESD tolerance compared to standard industrial grade parts.

Replacement Considerations

TRSF3223EIPWR is a verified equivalent offering identical functionality in the same TSSOP-20 package. TRS3223ECPWR serves as a compatible alternative though it may differ in temperature range specifications. Always verify pin-to-pin compatibility and electrical parameters against the original datasheet before substitution.