MAX3227EEAE

Overview

The MAX3227EEAE+ 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 15 kV ESD protection on both the transmitter input and receiver output, ensuring robust performance in harsh environments. It incorporates AutoShutdown Plus technology, which automatically places the device into a low-power shutdown mode when the power supply is removed or the line is idle. The component is housed in a 16-pin SSOP package and functions over an extended temperature range from -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality for automatic low-power management during idle states or power loss
• High electrostatic discharge immunity with 15 kV protection on inputs and outputs
• Single driver and single receiver configuration for full-duplex communication
• Integrated charge pump requiring only external 0.1 µF capacitors

Applications

• Industrial control systems requiring reliable serial communication
• Portable instrumentation and medical devices utilizing battery power
• Modem and fax machine interface circuits
• Point-of-sale terminals and barcode scanners

Procurement Notes

Verify the specific suffix against official documentation to confirm temperature grade and packaging format. The 'E' indicates an extended industrial temperature range, while 'A' denotes the SSOP package. Confirm RoHS compliance status through the manufacturer's current certification records. Ensure the ordering part number matches the required pinout and electrical specifications for the target application design.

Selection Notes

Select this component for applications requiring high-speed RS-232 transmission up to 1 Mbps with minimal external components. The integrated charge pump simplifies board layout by reducing capacitor count. Consider the 1 mA typical operating current for battery-powered designs. Verify that the 16-SSOP package dimensions fit the available PCB space and thermal requirements of the enclosure.

Part Context

This device belongs to the MAX322xE family of RS-232 transceivers designed for low-voltage operation. It shares architectural similarities with the MAX3232 but offers higher data rate capabilities. The MAX3227 series is distinct for its AutoShutdown feature, differentiating it from standard transceivers that require manual control for power saving. It serves as a bridge between microcontroller UARTs and RS-232 lines.

Replacement Considerations

The MAX3227EEAE+T is the tape-and-reel variant of the same functional device. For automotive applications, the MAX3227EEAE/V+ provides AEC-Q100 qualification. Other single-channel alternatives include the MAX3232EEPE, though data rates and shutdown features may differ.