MAX3227EUE

Overview

The MAX3227EUE is a single-channel, full-duplex RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 1 Mb/s. The device features an operating supply current of 1 mA and includes AutoShutdown Plus functionality for power management. It provides 15 kV ESD protection on all pins and ensures signal integrity with a propagation delay of 0.15 µs. Designed for surface-mount applications, it is housed in a TSSOP-16 package and functions reliably across an industrial temperature range from -40°C to +85°C.

Feature Summary

• AutoShutdown Plus technology automatically reduces supply current during idle periods or when the transmitter is inactive, enhancing energy efficiency.
• Integrated charge pump circuitry generates required RS-232 voltage levels directly from a single 3 V to 5.5 V supply, minimizing external component count.
• Robust electrostatic discharge protection rated at 15 kV on all pins ensures reliability in high-interference environments.

Applications

• Portable equipment requiring low-power serial communication interfaces
• Industrial control systems utilizing RS-232 protocols
• Embedded devices with limited power budgets

Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status through manufacturer documentation. Check for obsolescence notices as some variants may be discontinued. Ensure sourcing channels provide genuine components with traceable manufacturing history.

Selection Notes

Select this component for designs requiring a single driver and receiver with minimal external capacitance. Verify that the TSSOP-16 footprint matches the PCB layout constraints. Consider thermal performance within the -40°C to +85°C range for the intended environment. Compare against other MAX3227 variants if different packaging or commercial temperature ranges are acceptable.

Part Context

This part belongs to the MAX3227E family of RS-232 transceivers designed for low-voltage operation. It shares functional similarities with the MAX3232 and MAX3243 series but offers optimized power consumption and higher speed capabilities. The device integrates standard Maxim charge-pump technology for efficient voltage generation.

Replacement Considerations

Direct pin-compatible substitutes include other MAX3227 variants such as MAX3227EEAE+ or MAX3227CAE+, depending on required package and temperature specifications. Cross-reference electrical parameters carefully before substitution.