MAX232CASE+T

Overview

The MAX232CASE+T is a dual driver and receiver RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 5V supply and incorporates an internal capacitive voltage generator to produce TIA/EIA-232-F compliant signal levels, eliminating the need for external negative voltage sources. The device supports data rates up to 120 kbps with full-duplex communication capability. It features two drivers and two receivers within a compact SOIC-16 package. The component is designed for standard serial communication applications requiring reliable interface conversion between microprocessor logic levels and RS-232 voltage standards.

Feature Summary

• Integrated charge pump circuitry generates required RS-232 voltage swings from a single 5V source
• Provides full-duplex signal transmission with independent driver and receiver channels
• Compatible with TIA/EIA-232-F interface specifications for standard serial communications

Applications

• Microcontroller-based serial port interfacing
• Industrial control system communication links
• Point-of-sale (POS) terminal connections

Procurement Notes

Verify the specific suffix 'CASE' against official manufacturer documentation to confirm pinout compatibility and electrical characteristics relative to standard MAX232 variants. Ensure the component meets RoHS directives if required for your assembly process. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring standard RS-232 connectivity powered exclusively by a 5V rail. Consider the 120 kbps speed limit and lack of integrated ESD protection compared to newer MAX232E variants. Evaluate board space constraints as the SOIC-16 package requires specific footprint allocation for decoupling capacitors essential for stable operation.

Part Context

This part belongs to the widely adopted MAX232 family of multichannel RS-232 drivers and receivers. The series is characterized by its simplicity and reliance on external capacitors for voltage generation. It serves as a foundational interface solution for legacy serial communication protocols in embedded systems and industrial equipment where robustness and low cost are prioritized over high-speed performance.