MAX232EIPW

Overview

The MAX232EIPW is a dual driver/receiver RS-232 transceiver manufactured by Texas Instruments. It operates from a single 4.5 V to 5.5 V supply and achieves data rates up to 120 kb/s. The device integrates two charge pumps to generate internal ±9 V levels, requiring only four external capacitors. It features full-duplex communication with two drivers and two receivers. The component is housed in a TSSOP-16 surface-mount package and supports an operating temperature range of 0°C to +70°C.

Feature Summary

• Integrates dual charge pumps for single-supply operation without requiring negative voltage rails
• Provides full-duplex signal conversion between TTL/CMOS logic levels and standard RS-232 voltages
• Includes integrated ESD protection on receiver inputs and driver outputs

Applications

• Serial port interfacing for microcontroller-based embedded systems
• Data communication links between personal computers and industrial equipment
• Modem control circuits in telecommunications hardware

Procurement Notes

Verify the specific suffix IPW confirms the TSSOP-16 package and industrial-grade temperature rating. Confirm RoHS compliance status through official documentation. Ensure the source is an authorized distributor or manufacturer representative to guarantee authenticity. Check for any obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this component when a single 5 V supply is available and negative voltage generation is undesirable. It is suitable for applications requiring moderate data rates up to 120 kb/s. Compare against the MAX3232 series if 3.3 V operation or higher speed is required. Verify that the TSSOP-16 footprint matches the PCB layout constraints.

Part Context

This part belongs to the legacy MAX232 family of RS-232 transceivers. It serves as a direct pin-compatible upgrade to earlier versions like the MAX232CPE. The device establishes a baseline for low-cost serial communication interfaces in established industrial designs.

Replacement Considerations

The MAX232IDW offers identical functionality in a SOIC-16 package. The MAX232ECPW provides similar performance in a TSSOP-16 package but may differ in specific manufacturing lot characteristics.