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XR68C681J from EXAR

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XR68C681J

Manufacturer: EXAR

CMOS Dual Channel UART (DUART)

Partnumber Manufacturer Quantity Availability
XR68C681J EXAR 914 In Stock

Description and Introduction

CMOS Dual Channel UART (DUART) The XR68C681J is a manufacturer-specific part from EXAR. Below are the factual details about this component based on available knowledge:

### **Manufacturer:** EXAR  
### **Part Number:** XR68C681J  

#### **Specifications:**  
- **Type:** Universal Asynchronous Receiver/Transmitter (UART)  
- **Interface:** Serial (RS-232, RS-485 compatible)  
- **Data Rate:** Up to 1 Mbps (software-selectable baud rates)  
- **Operating Voltage:** 3.3V or 5V (supports dual supply operation)  
- **FIFO Buffers:** 64-byte transmit and receive FIFOs  
- **Package:** PLCC (Plastic Leaded Chip Carrier)  
- **Operating Temperature Range:** -40°C to +85°C (industrial grade)  

#### **Features:**  
- **Auto Hardware/Software Flow Control**  
- **Programmable Baud Rate Generator**  
- **Low Power Consumption**  
- **Industrial-Grade Reliability**  
- **Compatible with Industry-Standard UARTs (e.g., 16C450, 16C550)**  
- **Supports Multi-Drop (RS-485) Applications**  

#### **Applications:**  
- Industrial automation  
- Point-of-sale terminals  
- Networking equipment  
- Embedded systems  

This information is based on EXAR's official documentation for the XR68C681J. For exact performance characteristics, refer to the datasheet.

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