MAX3246EEBX

Overview

The MAX3246EEBX is a full-duplex RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates three drivers and five receivers within a compact 26-UCSP (3.06x3.06) package. The device operates on a single +3.0V to +5.5V supply and utilizes an internal dual charge pump to generate RS-232 voltage levels from the low supply voltage, eliminating the need for external capacitors in some configurations or using small 0.1uF capacitors as per related family documentation. It supports data rates up to 250kbps while maintaining standard RS-232 output levels. The component features enhanced electrostatic discharge protection, with receiver inputs protected to ±15kV via IEC 1000-4-2 Air-Gap Discharge and ±8kV via Contact Discharge.

Feature Summary

• Integrates three independent drivers and five independent receivers for full-duplex communication
• Operates on a single +3.0V to +5.5V power supply with internal charge pump
• Provides enhanced ESD protection on all transmitter outputs and receiver inputs
• Supports data rates up to 250kbps while maintaining true RS-232 signal levels

Applications

• EIA/TIA-232 and V.28/V.24 communications interfaces
• Portable battery-powered equipment requiring low power consumption
• Industrial control systems with high ESD sensitivity
• Modems and handheld terminals

Procurement Notes

Verify the specific suffix 'EEBX' corresponds to the 26-UCSP package and lead-free status when ordering. Confirm that the supplier provides the official Maxim Integrated datasheet for the MAX3246E series to ensure compatibility with system requirements. Check for RoHS compliance documentation if required by your manufacturing standards. Ensure the source is an authorized distributor to guarantee authenticity of the integrated circuit.

Selection Notes

Select this component when a full-duplex RS-232 interface is required in a space-constrained application. It is suitable for designs needing multiple receive channels and fewer transmit lines. Consider the 26-UCSP package size for PCB layout constraints. Verify that the system power supply falls within the +3.0V to +5.5V range. Evaluate ESD protection needs against the specified ±15kV air-gap rating.

Part Context

The MAX3246EEBX belongs to the MAX3246E family of True RS-232 transceivers. These devices are part of Maxim Integrated's portfolio of low-power communication interface solutions. The family shares common architectural features such as internal charge pumps and ESD protection structures. This specific part number denotes the surface-mount version in the UCSP package, distinguishing it from other pinout or package variants within the same functional family.

Replacement Considerations

Direct substitutes include other parts from the MAX3246E family with compatible packages. Cross-reference with MAX3246E variants if different packaging is acceptable. Ensure any replacement maintains the 3/5 driver/receiver configuration and similar ESD protection levels. Verify electrical characteristics match the original design requirements before substitution.