MAX3238EEAI-T

Overview

The MAX3238EEAI-T is a multichannel 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 250 kb/s. The device integrates five drivers and three receivers for full-duplex communication. Key electrical specifications include a typical operating supply current of 2 mA, propagation delay of 0.15 µs, and ESD protection rated at 15 kV on I/O and logic pins. It functions reliably across an industrial temperature range from -40°C to +85°C and utilizes an SSOP-28 surface-mount package.

Feature Summary

• Integrates five independent drivers and three receivers for comprehensive multichannel serial communication.
• Provides robust 15 kV electrostatic discharge protection on both input/output and logic pins.
• Features a dedicated shutdown mode to minimize power consumption during idle periods.
• Operates efficiently with low supply current requirements suitable for battery-powered applications.

Applications

• Industrial control systems requiring reliable serial data transmission
• Portable instrumentation and handheld devices
• Modems and communication equipment
• Point-of-sale terminals and payment systems

Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm tape-and-reel packaging and RoHS compliance status. Cross-reference the component marking with the datasheet to ensure authenticity. Confirm that the intended application environment falls within the specified voltage and temperature limits before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring multiple RS-232 channels in a compact form factor. Ensure the design accommodates the necessary external capacitors for charge pump operation. Verify that the host logic levels are compatible with the specified input thresholds. Consider the thermal characteristics of the SSOP-28 package relative to the expected ambient operating conditions.

Part Context

This part belongs to the MAX3238E series of low-power RS-232 transceivers. It shares functional similarities with other Maxim Integrated interface ICs designed for serial communication. The EEAI suffix indicates a specific package variant and temperature rating within the broader product family.

Replacement Considerations

Consult official substitution guides for verified alternatives such as the MAX3237 or MAX3241 series. Ensure any replacement maintains compatibility with the existing capacitor network and pin configuration.

FAQ

What is the maximum data rate supported by the MAX3238EEAI-T?

The device supports data rates up to 250 kb/s.

Does the MAX3238EEAI-T include ESD protection?

Yes, it features 15 kV ESD protection on all I/O and logic pins according to the human body model specification.

How many drivers and receivers are integrated into this transceiver?

The MAX3238EEAI-T contains five drivers and three receivers.