MAX232EIPWR

Overview

The MAX232EIPWR is a dual RS-232 transceiver manufactured by Texas Instruments, designed for EIA/TIA-232-F and V.28/V.24 communications. It integrates two drivers and two receivers within a single SOIC-16 package. The device operates on a single 5V supply with an internal charge pump to generate the necessary voltages for RS-232 signaling. It supports data rates up to 120 kb/s and functions within an industrial temperature range of -40°C to +85°C. The component draws approximately 10 mA of supply current and features full-duplex operation without a shutdown mode.

Feature Summary

• Integrates dual drivers and dual receivers for complete RS-232 communication capabilities in a compact surface-mount package.
• Utilizes an internal charge pump circuit to derive positive and negative supply voltages from a single 5V source, eliminating the need for external bipolar power supplies.
• Provides robust signal integrity with specified propagation delay characteristics suitable for standard serial communication protocols.

Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Embedded systems connecting microcontrollers to PC or peripheral devices via RS-232 ports.
• Data acquisition equipment operating in environments with extended temperature requirements.

Procurement Notes

Verify the specific suffix IPWR against official Texas Instruments documentation to confirm the tape-and-reel packaging format and industrial temperature grade. Ensure compatibility with existing PCB footprints for the SOIC-16 package. Confirm that the component meets all relevant regulatory standards required for the target deployment environment before finalizing procurement orders.

Selection Notes

Select this component when an industrial temperature range (-40°C to +85°C) is required for RS-232 interfacing. Compare performance metrics such as data rate limits and supply current against commercial variants if cost optimization is critical. Ensure the design accommodates the external capacitors required for the internal charge pump circuit as specified in the datasheet schematics.

Part Context

This part belongs to the MAX232 family of dual RS-232 transceivers produced by Texas Instruments. It shares functional similarities with other variants like the MAX232DR but differs in packaging and temperature rating. The family is widely recognized for its simplicity in converting TTL/CMOS logic levels to RS-232 compatible signals for legacy serial communication applications.

Replacement Considerations

The MAX232IDWR is a documented alternative offering similar electrical characteristics in a SOIC-16 package. Verify pinout compatibility and thermal specifications before substitution. Other family members may require evaluation of their specific temperature ranges and packaging formats to ensure they meet the original design constraints.