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MAX7301AAX+ from MAXIM,MAXIM - Dallas Semiconductor

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MAX7301AAX+

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX7301AAX+,MAX7301AAX MAXIM 130 In Stock

Description and Introduction

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander The MAX7301AAX+ 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  
- **Type:** I/O Expander  
- **Interface:** SPI  
- **Number of I/O Pins:** 20 (16 programmable GPIOs, 4 dedicated inputs)  
- **Supply Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 36-Pin SSOP  

### **Descriptions:**  
The MAX7301AAX+ is a high-performance I/O expander that provides additional GPIO ports via a serial SPI interface. It is designed for applications requiring multiple digital I/Os with minimal microcontroller pins.  

### **Features:**  
- **SPI-Compatible Serial Interface** (up to 26MHz)  
- **16 Configurable GPIO Pins** (individually programmable as input or output)  
- **4 Dedicated Input Pins** (non-configurable)  
- **Low Standby Current** (1μA typical in shutdown mode)  
- **Internal Pull-Up Resistors** (programmable per port)  
- **High Output Drive Capability** (10mA sink/source per I/O)  
- **Software-Configurable Interrupt Output** for input change detection  
- **Power-On Reset** (POR) ensures default state at startup  

This device is commonly used in industrial control, embedded systems, and consumer electronics where additional I/O expansion is needed.

Application Scenarios & Design Considerations

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander
Partnumber Manufacturer Quantity Availability
MAX7301AAX+,MAX7301AAX MAX 8 In Stock

Description and Introduction

4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and 28-Port I/O Expander The MAX7301AAX+ 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:** MAX7301AAX+  
- **Type:** I/O Expander  
- **Interface:** SPI (Serial Peripheral Interface)  
- **Number of I/O Pins:** 20 (16 programmable GPIOs, 4 dedicated inputs)  
- **Operating Voltage:** 2.7V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 36-Pin SSOP (Shrink Small Outline Package)  
- **Data Rate:** Up to 26MHz (SPI clock frequency)  
- **Current Consumption:** Low power (typ. 1µA in shutdown mode)  

### **Descriptions:**
The MAX7301AAX+ is a high-performance, SPI-compatible I/O expander designed to add GPIOs to microcontrollers with limited I/O pins. It provides 16 configurable GPIOs and 4 dedicated input pins, allowing flexible interfacing with sensors, switches, LEDs, and other peripherals.  

### **Features:**
- **SPI Interface:** Supports standard 4-wire SPI communication.  
- **Programmable I/O:** Each GPIO can be individually configured as input or output.  
- **Input Interrupt Capability:** Supports interrupt-on-change for input pins.  
- **High Drive Strength:** Outputs can sink/source up to 25mA for driving LEDs.  
- **Low-Power Modes:** Includes shutdown mode for power savings.  
- **Internal Pull-Up Resistors:** Configurable for input pins.  
- **Robust Protection:** Features ESD protection up to ±15kV (HBM).  

This information is based solely 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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