MAX221CAE-T

Drivers, Receivers, Transceivers Overview

The MAX221CAE-T is a single RS-232 transceiver manufactured by Analog Devices Inc. under the Maxim Integrated brand, designed for EIA/TIA-232E and V.28/V.24 communication interfaces. It operates on a single +5V power supply with a maximum voltage of 5V and minimum of 5V. The device supports data rates up to 250 kb/s and features one driver and one receiver in a full-duplex configuration. It includes an auto-shutdown function and offers 15 kV ESD protection. Operating temperatures range from 0°C to +70°C. The component draws 10 mA of operating current and has a propagation delay of 0.15 µs. It is housed in an SSOP-16 package.

Drivers, Receivers, Transceivers Feature Summary

• Integrates a single RS-232 driver and receiver for full-duplex communication without requiring external charge pumps or capacitors.
• Features an automatic shutdown mode that significantly reduces power consumption when no valid signal is present.
• Provides robust electrostatic discharge (ESD) protection rated at 15 kV to enhance reliability in harsh environments.

Drivers, Receivers, Transceivers Applications

• Industrial control systems requiring serial communication
• Point-of-sale terminals and barcode scanners
• Medical equipment with serial interface requirements

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging versus other variants. Confirm RoHS compliance status through official documentation as '+T' typically denotes lead-free and RoHS compliant status. Check for obsolescence notices or lifecycle changes directly from Analog Devices. Ensure the SSOP-16 footprint matches your PCB design constraints. Validate temperature grade 'C' corresponds to commercial range specifications.

Drivers, Receivers, Transceivers Selection Notes

Select this component when a single-channel RS-232 solution is required with minimal external components. Consider the 250 kb/s data rate limit for compatibility with legacy serial protocols. Evaluate the SSOP-16 package size against available board space. Verify that the +5V supply voltage aligns with the system power architecture. Assess if the auto-shutdown feature meets specific low-power standby requirements.

Drivers, Receivers, Transceivers Part Context

The MAX221 belongs to the MAX220–MAX249 family of +5V-powered multichannel RS-232 drivers and receivers. This family is designed for applications where ±12V supplies are unavailable. Unlike earlier MAX232 variants, these devices integrate internal capacitors, reducing external component count. The MAX221 specifically provides one driver and one receiver channel.

Drivers, Receivers, Transceivers Replacement Considerations

Publicly confirmed substitutes include the MAX221EAE+T and MAX221CUE. These parts share similar functional characteristics within the same product family. Verify pinout compatibility and electrical specifications before substitution. Check for any differences in operating temperature ranges or package types between potential replacements.