MAX7311AAG+

Overview

The MAX7311AAG+ is a 2-wire-interfaced 16-bit I/O port expander designed for SMBus and I2C applications. It provides 16 configurable input/output pins with internal 100kΩ pullups, defaulting to inputs on power-up. The device operates within a supply voltage range of 2V to 5.5V and supports a maximum clock frequency of 400kHz. It features an open-drain interrupt output, polarity inversion registers, and bus timeout protection. The component is specified for operation across an extended temperature range from -40°C to +125°C and is housed in a 24-pin SSOP package.

Feature Summary

• Supports hot insertion with high-impedance state during power-down
• Includes bus timeout functionality to prevent lock-ups
• Provides polarity inversion for input data configuration

Applications

• Servers
• RAID Systems
• Industrial Control
• Medical Equipment
• PLCs

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with system voltage levels and interface protocols before integration. Cross-reference part numbers with authorized distributors to confirm current availability and authenticity.

Selection Notes

Select this component when 16 general-purpose I/O lines are required with I2C or SMBus connectivity. Consider the 24-pin SSOP package for surface-mount assembly constraints. Verify that the 2V to 5.5V operating range aligns with the target system's power supply specifications.

Part Context

This device belongs to the MAX7311 series of I/O expanders manufactured by Analog Devices Inc./Maxim Integrated. It serves as a peripheral interface solution for microprocessors requiring additional digital input and output ports via serial communication protocols.

Replacement Considerations

Refer to the MAX7312 data sheet for applications requiring I/Os without integrated pullup resistors.