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MAX7301AAX+T from MAX,MAXIM - Dallas Semiconductor

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MAX7301AAX+T

Manufacturer: MAX

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

Partnumber Manufacturer Quantity Availability
MAX7301AAX+T,MAX7301AAXT MAX 10 In Stock

Description and Introduction

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander The **MAX7301AAX+T** is a serial-interfaced peripheral designed by **Maxim Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Manufacturer:**  
- **Maxim Integrated** (acquired by Analog Devices)

### **Specifications:**  
- **Interface:** I²C-compatible 2-wire serial interface  
- **Operating Voltage:** 2.7V to 5.5V  
- **Number of I/O Ports:** 20 (configurable as inputs or outputs)  
- **Output Drive Capability:** 25mA per I/O (sink/source)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 36-pin SSOP (Shrink Small Outline Package)  

### **Descriptions:**  
- The **MAX7301AAX+T** is a **GPIO expander** that provides additional I/O ports via an I²C interface.  
- It is suitable for applications requiring multiple digital I/Os with minimal microcontroller pins.  
- Features include programmable pull-ups, input filtering, and interrupt-on-change capability.  

### **Features:**  
- **20 configurable I/O pins** (individually programmable as inputs or outputs)  
- **Interrupt output** for input state change detection  
- **Internal pull-up resistors** (programmable per port)  
- **Schmitt trigger inputs** for noise immunity  
- **Low standby current** (1µA typical in shutdown mode)  
- **Software reset** function  

This device is commonly used in embedded systems, industrial controls, and consumer electronics for expanding I/O capabilities.  

Would you like additional details on any specific aspect?

Application Scenarios & Design Considerations

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

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