MAX7324ATG+T

Overview

The MAX7324ATG+T is an I²C port expander featuring eight push-pull outputs and eight inputs. It operates from a +1.71V to +5.5V supply with a 400kHz serial interface. The device includes latching transition detection, selectable internal pullups, and overvoltage protection to +6V on input ports. Packaged in a 24-pin TQFN (4mm x 4mm), it supports 16 slave addresses via AD0/AD2 inputs and functions within the -40°C to +125°C automotive temperature range.

Feature Summary

• Eight push-pull outputs rated at 20mA and eight CMOS input ports with overvoltage tolerance up to +6V
• Latching transition detection with interrupt mask for monitoring transient state changes
• Configurable internal pullup resistors enabled by address selection inputs
• Low standby current of 0.6µA when the serial interface is idle

Applications

• Cell phones
• SAN/NAS systems
• Servers
• Notebooks
• Satellite radio

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance and lead-free status using official documentation. Check for obsolescence notices as this part may be subject to discontinuation. Ensure proper ESD handling during storage and assembly.

Selection Notes

Select this model for applications requiring mixed push-pull output and high-voltage tolerant input capabilities. Verify that the operating voltage range matches the system supply. Consider the 24-pin TQFN package constraints for PCB layout. Evaluate if the specific interrupt masking features meet the system's monitoring requirements.

Part Context

This component belongs to the MAX7324–MAX7327 family of pin-compatible port expanders. It integrates the functionality of the MAX7320 with specific input/output configurations. The ATG suffix indicates the automotive temperature grade and TQFN package type.

Replacement Considerations

Consider the MAX7324AEG+T for the same specifications in a QSOP package. Other family members like MAX7325 or MAX7326 offer different I/O configurations but maintain pin compatibility.