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MAX7321ATE from MAXIM,MAXIM - Dallas Semiconductor

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MAX7321ATE

Manufacturer: MAXIM

I2C Port Expander with 8 Open-Drain I/Os

Partnumber Manufacturer Quantity Availability
MAX7321ATE MAXIM 120 In Stock

Description and Introduction

I2C Port Expander with 8 Open-Drain I/Os The MAX7321ATE is a serial-interfaced peripheral manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 16-TQFN (5x5)  
- **Operating Voltage:** 2.5V to 5.5V  
- **Number of I/O Ports:** 8  
- **Interface:** I²C-compatible (up to 400kHz)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Output Current:** 25mA per I/O (max)  
- **Interrupt Output:** Yes (open-drain)  
- **ESD Protection:** ±15kV (Human Body Model)  

### **Description:**  
The MAX7321ATE is an I²C-interfaced I/O expander that provides 8 general-purpose I/O ports. It is designed to simplify microcontroller-based systems by offloading I/O expansion tasks. The device supports both input and output configurations with programmable polarity inversion for inputs.  

### **Features:**  
- **8 Configurable I/O Ports:** Can be individually set as inputs or outputs.  
- **I²C-Compatible Interface:** Supports standard (100kHz) and fast (400kHz) modes.  
- **Interrupt Output:** Alerts the host of input changes.  
- **Software Reset:** Allows system recovery via I²C command.  
- **Low Standby Current:** Typically 1µA (max).  
- **Polarity Inversion:** Configurable for input ports.  
- **Small Footprint:** 16-pin TQFN package (5mm x 5mm).  

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

Application Scenarios & Design Considerations

I2C Port Expander with 8 Open-Drain I/Os

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