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MAX7300AAX+

MAX7300AAX+ Description

The MAX7300AAX+ from Analog Devices Inc./Maxim Integrated is a high-performance I²C-interfaced I/O expander designed to provide flexible 28 I/O ports for embedded systems. Operating within a 2.5V to 5.5V supply range, it supports 400 kHz clock frequency, making it suitable for high-speed communication. The device features 4.5mA source and 10mA sink current capabilities, ensuring robust signal integrity in diverse applications. Packaged in a 36-pin SSOP tube, it is RoHS3 compliant and rated for MSL 1 (Unlimited), ensuring reliability in surface-mount assembly.

MAX7300AAX+ Features

• 28 configurable I/O ports with programmable direction control.
• I²C interface (400 kHz) for efficient communication with microcontrollers.
• Interrupt output for real-time event monitoring.
• Wide voltage range (2.5V–5.5V), compatible with 3.3V and 5V systems.
• High drive strength (4.5mA source, 10mA sink) for direct LED or relay control.
• Low-power operation ideal for battery-powered devices.
• Industrial-grade robustness with REACH Unaffected and EAR99 ECCN compliance.

MAX7300AAX+ Applications

• Industrial automation: Expands I/O for PLCs, sensors, and control systems.
• Consumer electronics: Keypad scanning, LED matrix driving, and GPIO expansion.
• Embedded systems: Interface extension for microcontrollers with limited pins.
• IoT devices: Low-power peripheral management in smart sensors.
• Automotive systems: Non-critical control functions requiring reliable I/O expansion.

Conclusion of MAX7300AAX+

The MAX7300AAX+ stands out for its high-speed I²C interface, flexible I/O configuration, and robust drive capabilities, making it a versatile solution for expanding system connectivity. Its wide voltage range and interrupt functionality enhance real-time responsiveness, while its industrial compliance ensures durability. Ideal for space-constrained, power-sensitive designs, this I/O expander bridges the gap between microcontrollers and peripheral devices efficiently.