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MAX7301AAI+ from MAX,MAXIM - Dallas Semiconductor

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MAX7301AAI+

Manufacturer: MAX

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

Partnumber Manufacturer Quantity Availability
MAX7301AAI+,MAX7301AAI MAX 40 In Stock

Description and Introduction

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander The MAX7301AAI+ is a serial-interfaced peripheral manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features based on factual information:

### **Manufacturer:**  
Maxim Integrated (Analog Devices)  

### **Specifications:**  
- **Interface Type:** I²C-compatible 2-wire serial interface  
- **Number of I/O Ports:** 20 (configurable as inputs or outputs)  
- **Operating Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** 28-pin SSOP  
- **Output Current per Pin:** 25mA (sink/source)  
- **Quiescent Current:** 1µA (standby mode)  
- **Clock Frequency:** Up to 400kHz  

### **Descriptions:**  
The MAX7301AAI+ is an I/O expander that provides 20 configurable GPIO pins, controlled via an I²C interface. It is designed for applications requiring additional I/O ports without increasing microcontroller pin count. The device supports interrupt-on-change functionality and features low-power operation, making it suitable for battery-powered systems.  

### **Features:**  
- **20 Programmable I/O Pins:** Each pin can be independently configured as an input or output.  
- **Interrupt Output:** Notifies the host of input changes.  
- **Internal Pull-Up Resistors:** Configurable for input ports.  
- **Low Standby Current:** 1µA in shutdown mode.  
- **Wide Voltage Range:** Supports 2.7V to 5.5V operation.  
- **Industrial Temperature Range:** Operates from -40°C to +85°C.  
- **Small Footprint:** 28-pin SSOP package for space-constrained designs.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander

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