MAX3227ECDB

Overview

The MAX3227ECDB is a single-channel RS-232 line driver and receiver manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V, supporting both 3.3 V and 5 V logic systems. The device achieves data rates up to 1 Mbps with propagation delays of 0.15 µs. It features ±15-kV electrostatic discharge (ESD) protection on all RS-232 lines. The IC includes an AutoShutdown Plus feature that reduces supply current to 1 µA during shutdown or when no valid signal is present. It is housed in a 16-pin SSOP package and functions as a full-duplex transceiver.

Feature Summary

• Integrates AutoShutdown Plus technology to minimize power consumption by automatically reducing supply current when the device is inactive or lacks valid input signals.
• Provides robust ±15-kV ESD protection across all RS-232 transceiver lines, ensuring reliability in high-interference environments.
• Supports full-duplex communication with a single driver and receiver channel optimized for standard RS-232 protocols.

Applications

• Portable battery-powered equipment requiring low standby current
• Industrial control systems with exposed serial ports
• Modems and handheld terminals

Procurement Notes

Verify the specific suffix 'ECDB' against the manufacturer's official datasheet to confirm the exact temperature grade and packaging configuration. Ensure compatibility with existing PCB footprints for the 16-pin SSOP format. Confirm that the single-channel architecture meets the system's interface requirements before procurement.

Selection Notes

Select this component when a single RS-232 channel is sufficient for the design. Compare the 1 Mbps speed limit against higher-speed alternatives if data throughput requirements exceed this threshold. Verify that the 3 V to 5.5 V operating range aligns with the target system's power supply rails.

Part Context

This part belongs to the MAX3227E family of RS-232 transceivers designed for low-power applications. It shares functional similarities with other Maxim Integrated and Texas Instruments single-channel devices but is distinguished by its specific AutoShutdown Plus implementation and ESD protection levels.

Replacement Considerations

Publicly confirmed substitutes include TRS3221E and MAX3221E. Verify pinout compatibility and electrical specifications before substitution.