MAX3349EETE+T

Overview

The MAX3349EETE+T is a dual, half-duplex RS-485 transceiver manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 10 Mbps. The device features ±15 kV ESD protection on the bus pins and includes thermal shutdown and partial RS-485 compliance for fault tolerance. It is housed in a 16-pin TQFN package with an exposed pad and is rated for operation between -40°C and +85°C.

Feature Summary

• Dual half-duplex RS-485 transceiver architecture
• High electrostatic discharge protection on bus lines
• Integrated thermal shutdown circuitry
• Partial RS-485 standard compliance

Applications

• Industrial automation control networks
• Building automation systems
• Metering applications requiring robust serial communication

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout compatibility and packaging type. Ensure the component meets RoHS directives if required for your assembly process. Cross-reference the part number with official distributor catalogs to confirm availability status and lead times before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring dual independent RS-485 channels in a compact footprint. It is suitable for environments where high ESD immunity is critical. Verify that the 10 Mbps data rate aligns with system requirements and that the 2.7 V to 5.5 V supply range matches the available power rails.

Part Context

This part belongs to the MAX3349 family of interface ICs designed for reliable serial communication in noisy industrial environments. It complements other Maxim Integrated transceivers by offering dual-channel functionality in a small TQFN package, facilitating space-constrained PCB layouts while maintaining signal integrity over long cable runs.

Replacement Considerations

Check for direct pin-to-pin replacements such as the MAX3349EEPE+ or other dual RS-485 transceivers from the same manufacturer family. Ensure any substitute maintains the same ESD protection levels and data rate specifications.