MAX3222EIPWG4

Overview

The MAX3222EIPWG4 is a dual RS-232 transceiver manufactured by Texas Instruments, designed for data communication on personal computers and handheld devices. It operates from a single 3-V to 5.5-V supply and features two drivers and two receivers. The device supports data rates up to 120 kb/s with full duplex operation. It includes a shutdown mode that reduces supply current to less than 1 µA. The IC provides ±15-kV ESD protection on RS-232 lines and meets TIA/EIA-232-F standards. It is housed in a 20-pin TSSOP package.

Feature Summary

• Integrated charge pump eliminates the need for external voltage sources
• Shutdown pin controls power consumption for battery applications
• Robust electrostatic discharge protection on all RS-232 pins

Applications

• Personal computer serial ports
• Handheld devices and PDAs
• Modems and portable instruments

Procurement Notes

Verify the specific suffix IPWG4 against official Texas Instruments documentation to confirm the exact package type (TSSOP) and temperature range (Industrial). Ensure compatibility with design-in requirements before ordering, as suffixes define physical and environmental specifications.

Selection Notes

Select this component when a dual-channel RS-232 interface is required within a compact TSSOP footprint. It is suitable for systems needing low standby current via shutdown mode. Compare against similar TI parts like the MAX3222EIDR for alternative packaging options such as SOIC or VQFN if space constraints differ.

Part Context

This part belongs to the MAX3222 family of multichannel RS-232 line drivers and receivers. The family is characterized by its ability to operate from a single supply voltage while generating the necessary positive and negative voltages for RS-232 compliance using internal capacitors.

Replacement Considerations

MAX3222EIDWR: Alternative SOIC-20 package version. TRS3222EIDRG4: Pin-compatible replacement with potentially different manufacturing origin.