MAX7324AEG+T

Overview

The MAX7324AEG+T is an I2C port expander featuring eight push-pull outputs and eight input ports. It operates within a supply voltage range of +1.71V to +5.5V and supports serial clock frequencies up to 400kHz. The device includes latching transition detection with interrupt output, overvoltage protection on inputs to +6V, and selectable internal pullups. It is available in a 24-pin QSOP package and specified for the -40°C to +125°C automotive temperature range.

Feature Summary

• Eight push-pull outputs rated at 20mA capable of driving LEDs
• Eight input ports with maskable, latching transition detection
• Input ports feature overvoltage protection to +6V
• Low standby current of 0.6µA when interface is idle

Applications

• Cell Phones
• Servers
• Notebooks

Procurement Notes

Verify the component matches the exact part number MAX7324AEG+T. Confirm the manufacturer is Analog Devices Inc./Maxim Integrated. Ensure the package type is 24-pin QSOP. Check that the device meets the -40°C to +125°C operating temperature range specification.

Selection Notes

Select this component when an I2C interface is required for expanding GPIO capabilities. It is suitable for applications needing both push-pull outputs and monitored inputs. Consider the 16 possible slave addresses for bus configuration. Verify power supply compatibility with the 1.71V to 5.5V operating range.

Part Context

The MAX7324 is part of a family of pin-compatible port expanders including the MAX7325, MAX7326, and MAX7327. These devices share similar interfaces but vary in input/output configurations. The MAX7324 specifically combines eight push-pull outputs with eight inputs, offering versatility for mixed signal applications.

Replacement Considerations

The MAX7325, MAX7326, and MAX7327 are pin-compatible alternatives within the same family. Selection depends on specific input/output requirements. The MAX7325 offers open-drain I/O, while the MAX7326 and MAX7327 provide different ratios of push-pull outputs to inputs.