MAX3221EIPW

Overview

The MAX3221EIPW is a single-channel RS-232 transceiver manufactured by Texas Instruments, housed in a 16-TSSOP package. It operates from a single 3V to 5.5V supply and supports data rates up to 250kbps with full duplex communication. The device integrates one driver and one receiver, featuring ±15kV IEC ESD protection on the serial port connector. Typical operating supply current is 1mA, with an auto-power-down mode reducing standby current to 1µA. It functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Provides electrical interface between asynchronous controllers and serial-port connectors per TIA/EIA-232-F requirements.
• Integrates charge pump requiring only four small external capacitors for operation from a single power supply.
• Includes flexible control options for power management, such as auto-power-down and shutdown modes.

Applications

• Asynchronous communication controller interfaces
• Modem applications
• Portable battery-powered instruments

Procurement Notes

Verify the specific suffix 'IPW' corresponds to the 16-TSSOP package and commercial temperature grade (0°C to +70°C). Confirm RoHS compliance status and check for any recent PCN notices regarding assembly site changes or marking updates before finalizing procurement orders.

Selection Notes

Select this component when a single-channel RS-232 interface is required with low standby power consumption. Ensure the application environment stays within the 0°C to +70°C commercial temperature range. Verify that the system voltage falls between 3V and 5.5V and that space constraints accommodate the 16-TSSOP footprint.

Part Context

This part belongs to the MAX3221 family of RS-232 transceivers designed for low-power portable applications. It serves as a pin-compatible alternative to higher-speed devices like the TRSF3221E while maintaining compatibility with standard MAX232-based designs. The IPW suffix specifically denotes the surface-mount TSSOP packaging variant.

Replacement Considerations

• MAX3221IPWR
• TRS3221EIPWR

FAQ

What is the typical supply current in shutdown mode?

The typical supply current is reduced to 1µA when both the driver and receiver are shut off via the ForceOff and Enable pins.

Does the device support ESD protection?

Yes, the device provides ±15kV IEC ESD protection on the serial port connector inputs and outputs.