MAX3243EIPW

Overview

The MAX3243EIPW is a multi-channel RS-232 line driver and receiver manufactured by Texas Instruments. It operates on a single 3 V to 5.5 V power supply and integrates three drivers and five receivers within a 28-pin TSSOP package. The device supports full-duplex communication with a data rate of 250 kb/s and features ±15 kV ESD protection on all bus pins. It includes a shutdown mode for low-power applications, drawing only 1 µA in standby. The component functions across an industrial temperature range from -40°C to +85°C.

Feature Summary

• Integrates three independent line drivers and five line receivers for multi-port serial communication
• Provides ±15 kV electrostatic discharge protection on all RS-232 bus lines
• Features a dedicated shutdown pin to minimize power consumption during idle periods
• Utilizes internal charge pumps to generate required voltage levels from a single supply

Applications

• Industrial control systems requiring robust serial communication interfaces
• Portable battery-powered equipment such as laptops and PDAs
• Modems and portable instruments needing reliable RS-232 connectivity
• Embedded systems interfacing with asynchronous controllers

Procurement Notes

Verify the specific suffix IPW corresponds to the 28-TSSOP package variant when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor declarations prior to procurement. Ensure the ordering quantity matches the tube packaging format typically associated with this part number.

Selection Notes

Select this component when a combination of three transmit and five receive channels is required in a compact surface-mount package. It is suitable for designs operating between 3 V and 5.5 V where moderate data rates up to 250 kb/s are sufficient. Consider alternative variants if higher data speeds or different thermal ratings are necessary for the specific application environment.

Part Context

This part belongs to the MAX3243 family of RS-232 transceivers designed for PC and industrial applications. The 'E' designation indicates extended temperature performance compared to standard commercial grades. The IPW suffix specifies the thin-shrink small-outline package, distinguishing it from wider SOIC or SSOP alternatives within the same functional series.

Replacement Considerations

Direct replacements include the MAX3243EIDBR (SSOP-28) and MAX3243EIPWR (TSSOP-28). Verify pin compatibility and package dimensions before substitution. Other manufacturers offer functionally similar parts, but electrical characteristics and pinouts may differ.