MAX3227ECDBR

Overview

The MAX3227ECDBR 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 provides full-duplex communication with a data rate capability of 1 Mbps. It features ±15-kV electrostatic discharge (ESD) protection on all RS-232 lines, ensuring robustness in harsh environments. Key electrical parameters include a maximum propagation delay of 0.3 µs and an operating quiescent current of 1 mA. The component is housed in a 16-pin SSOP package and is rated for operation between 0°C and +70°C.

Feature Summary

• Single-channel RS-232 transceiver designed for point-to-point serial communications
• Integrated ±15-kV ESD protection on transmit and receive lines
• Ultra-low power consumption with 1 mA typical supply current
• Built-in auto-shutdown feature reduces current during idle states

Applications

• Portable battery-powered devices requiring low-power serial interfaces
• Industrial control systems with exposed I/O ports
• Modems and fax machines
• Handheld terminals and POS systems

Procurement Notes

Verify the specific suffix 'ECDBR' against the manufacturer's official datasheet to confirm the exact temperature grade, packaging type, and RoHS compliance status. Ensure the ordering information matches the required pinout and functional specifications for the target application design.

Selection Notes

Select this component when a single channel is sufficient for the interface requirement. Compare against the MAX3223 or MAX3243 if additional drivers or receivers are needed. Verify that the 1 Mbps speed meets the system timing requirements and that the SSOP package fits the PCB layout constraints.

Part Context

This part belongs to the MAX322x family of RS-232 transceivers from Texas Instruments. It shares architectural similarities with the MAX3221 and MAX3223 but differs in channel count. The 'E' suffix typically denotes the commercial temperature range, while 'C' may indicate specific packaging or compliance variations depending on the revision.

Replacement Considerations

The TRS3227EIDBR is a documented parameter-equivalent replacement. Other compatible alternatives include the MAX3221EIDB for single-channel applications or the MAX3223EIDR for dual-channel needs. Always verify pin compatibility and electrical characteristics before substitution.