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TCA6416ARTWR from TI,Texas Instruments

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TCA6416ARTWR

Manufacturer: TI

Low-Voltage 16-Bit I2C and SMBus I/O Expander 24-WQFN -40 to 85

Partnumber Manufacturer Quantity Availability
TCA6416ARTWR TI 60000 In Stock

Description and Introduction

Low-Voltage 16-Bit I2C and SMBus I/O Expander 24-WQFN -40 to 85 The TCA6416ARTWR is a 16-bit I²C and SMBus I/O expander manufactured by Texas Instruments (TI). Here are its specifications, descriptions, and features:

### **Specifications:**
- **Interface:** I²C/SMBus compatible  
- **Number of I/O Pins:** 16 (configurable as inputs or outputs)  
- **Operating Voltage:** 1.65V to 5.5V  
- **I²C Clock Frequency:** Up to 400 kHz  
- **Interrupt Output:** Active-low interrupt pin for monitoring input changes  
- **Power-On Reset:** Default state after power-up  
- **Package:** 24-pin WQFN (RTW)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The TCA6416ARTWR is a low-voltage, bidirectional I/O expander designed for general-purpose I²C/SMBus applications. It provides 16 GPIO pins that can be independently configured as inputs or outputs. The device supports interrupt functionality to notify the host of input state changes, reducing the need for continuous polling.

### **Features:**
- **16 Programmable I/O Pins:** Each can be set as input or output.  
- **Wide Voltage Range:** Operates from 1.65V to 5.5V, making it compatible with various logic levels.  
- **I²C/SMBus Interface:** Supports standard (100 kHz) and fast (400 kHz) modes.  
- **Interrupt Output:** Active-low open-drain interrupt pin for efficient event detection.  
- **Internal Power-On Reset:** Initializes registers to default states at power-up.  
- **Low Standby Current:** Optimized for power-sensitive applications.  
- **Small Footprint:** 24-pin WQFN package (4mm x 4mm) for space-constrained designs.  

For detailed electrical characteristics and application notes, refer to the official TI datasheet.

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