MAX7325ATG+T

Overview

The MAX7325ATG+T is a 16-port I/O expander operating from +1.71V to +5.5V. It features eight push-pull outputs and eight open-drain I/O ports rated to sink 20mA. The device supports a 400kHz I2C interface with sixteen selectable slave addresses via AD0 and AD2 inputs. It includes latching transition detection for input monitoring, an active-low INT output, and internal pullups. Standby current is typically 0.6µA. The component operates over the -40°C to +125°C automotive temperature range and is housed in a 24-pin TQFN package.

Feature Summary

• Eight push-pull outputs and eight open-drain I/O ports with selectable logic states
• Latching transition detection interrupt for continuous input monitoring
• Sixteen I2C slave address options using AD0 and AD2 inputs
• Overvoltage protection on all I/O ports up to +6V

Applications

• Cell Phones
• Servers
• Automotive Systems

Procurement Notes

Verify the specific suffix ATG+T corresponds to the 24-pin TQFN-EP package configuration. Confirm RoHS compliance status as indicated by the plus sign. Ensure the ordering information matches the exact part number required for your design specifications before finalizing procurement.

Selection Notes

Select this device when pin compatibility with the MAX7324, MAX7326, and MAX7327 is required within the same family. Choose the MAX7325 specifically for its combination of eight push-pull outputs and eight configurable open-drain I/O ports. Verify that the supply voltage range and temperature requirements align with the application environment.

Part Context

The MAX7325 belongs to the MAX7319–MAX7329 family of pin-compatible port expanders. It shares the same footprint as variants offering different configurations of input-only, output-only, or mixed I/O ports. This allows designers to maintain consistent PCB layouts while adjusting port functionality across different product revisions.

Replacement Considerations

Pin-compatible alternatives include the MAX7324, MAX7326, and MAX7327. These devices offer different distributions of push-pull and open-drain ports but require verification of electrical characteristics and register mapping compatibility.