MAX7310AEE+T

Overview

The MAX7310AEE+T is an 8-bit I/O port expander manufactured by Analog Devices Inc./Maxim Integrated. It provides parallel input/output expansion via a 2-wire SMBus/I2C-compatible serial interface. The device operates within a supply voltage range of 2.3V to 5.5V and supports clock frequencies up to 400kHz. It features eight configurable I/O pins that default to inputs on power-up, with I/O0 supporting 5V tolerant open-drain output. The component includes registers for input data, output control, polarity inversion, configuration, and bus timeout management. It is specified for operation over the -40°C to +125°C temperature range.

Feature Summary

• Configurable 8-bit I/O ports with individual direction settings
• Bus timeout mechanism prevents lock-up conditions
• Polarity inversion capability for input data
• Multiple slave ID address selection

Applications

• Servers
• RAID Systems
• Industrial Control
• Medical Equipment
• Instrumentation and Test Measurement

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and tape/reel specifications. Ensure compatibility with system voltage levels and interface requirements before procurement. Cross-reference the part number with authorized distributors to confirm availability and authenticity.

Selection Notes

Select this component when an 8-bit GPIO expansion solution is required for I2C or SMBus systems. Consider the 2.3V to 5.5V operating range and the -40°C to +125°C automotive temperature rating. Verify that the QSOP-16 package fits the board layout constraints and that the 400kHz interface speed meets system timing requirements.

Part Context

The MAX7310 belongs to the Maxim Integrated MAX73xx series of I/O expanders. This family offers various pin counts and interface options for system expansion. The MAX7310 specifically targets applications requiring 8 bits of general-purpose I/O with robust bus protection features like timeout detection.

Replacement Considerations

Consult the official datasheet for direct pin-to-pin replacements within the MAX73xx family. Verify electrical characteristics and register compatibility if substituting with other I/O expanders from different manufacturers.