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MAX7301AAI+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX7301AAI+T

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX7301AAI+T,MAX7301AAIT MAXIM 1207 In Stock

Description and Introduction

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

### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)  
- **Part Number:** MAX7301AAI+T  
- **Package:** 28-pin SSOP (Shrink Small Outline Package)  
- **Operating Voltage:** 2.7V to 5.5V  
- **Number of I/O Ports:** 20 (configurable as inputs or outputs)  
- **Interface Type:** 4-wire SPI (Serial Peripheral Interface)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Output Current per Pin:** 25mA (sink/source)  
- **Quiescent Current:** 1µA (shutdown mode)  

### **Descriptions:**
The MAX7301AAI+T is an I/O expander that provides 20 configurable GPIO (General-Purpose Input/Output) ports. It communicates via a 4-wire SPI interface, making it suitable for microcontroller-based systems requiring additional I/O expansion. The device supports both input and output configurations with programmable pull-up resistors for input ports.

### **Features:**
- **20 Programmable I/O Pins:** Can be individually configured as inputs or outputs.  
- **SPI Interface:** 4-wire (up to 26MHz clock speed).  
- **Low Power Consumption:** 1µA in shutdown mode.  
- **Internal Pull-Up Resistors:** Configurable for input ports.  
- **High Output Drive:** 25mA per I/O pin.  
- **Wide Voltage Range:** Operates from 2.7V to 5.5V.  
- **Industrial Temperature Range:** -40°C to +85°C.  
- **Small Footprint:** 28-pin SSOP package.  

This device is commonly used in applications requiring additional I/O expansion, such as industrial controls, consumer electronics, and embedded systems.

Application Scenarios & Design Considerations

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

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