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XR16L2551 from XR

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XR16L2551

Manufacturer: XR

LOW VOLTAGE DUART WITH POWERSAVE

Partnumber Manufacturer Quantity Availability
XR16L2551 XR 64 In Stock

Description and Introduction

LOW VOLTAGE DUART WITH POWERSAVE The **XR16L2551** is a dual universal asynchronous receiver and transmitter (DUART) manufactured by **Exar Corporation** (now part of **MaxLinear**).  

### **Key Specifications:**  
- **Interface:** UART (Universal Asynchronous Receiver/Transmitter)  
- **Number of Channels:** 2 (Dual UART)  
- **Data Rate:** Up to **3 Mbps**  
- **Data Bits:** 5, 6, 7, 8 (programmable)  
- **Stop Bits:** 1, 1.5, 2 (programmable)  
- **Parity:** Odd, Even, None, Mark, Space  
- **FIFO Depth:** 128 bytes per channel (Tx and Rx)  
- **Voltage Supply:** **3.3V** (operating range: 3.0V to 3.6V)  
- **Operating Temperature:** **-40°C to +85°C**  
- **Package:** **48-pin LQFP** (Low-profile Quad Flat Package)  

### **Features:**  
- **Auto RTS/CTS Hardware Flow Control**  
- **Programmable Xon/Xoff Software Flow Control**  
- **Infrared (IrDA) Encoder/Decoder Support**  
- **Sleep Mode for Power Savings**  
- **Software-Selectable Baud Rate Generator**  
- **Industrial Temperature Range Support**  
- **Compatible with Industry-Standard 16C450/16C550 UARTs**  

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

This device is designed for high-performance serial communication applications with low power consumption and robust feature sets.

Partnumber Manufacturer Quantity Availability
XR16L2551 EXAR 355 In Stock

Description and Introduction

LOW VOLTAGE DUART WITH POWERSAVE The XR16L2551 is a dual universal asynchronous receiver and transmitter (DUART) manufactured by EXAR Corporation. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** EXAR  
- **Type:** Dual UART (DUART)  
- **Data Rate:** Up to 3 Mbps  
- **Number of Channels:** 2 independent UART channels  
- **FIFO Depth:** 128 bytes per channel (TX & RX)  
- **Voltage Supply:** 3.3V or 5V operation  
- **Interface:** Parallel (8-bit)  
- **Package Options:** 48-pin LQFP, 44-pin PLCC, 48-pin TQFP  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The XR16L2551 is a high-performance dual UART designed for applications requiring reliable serial communication.  
- It supports independent baud rate generators for each channel.  
- Includes programmable features such as data format, flow control, and interrupt handling.  

### **Features:**  
- **128-byte TX & RX FIFOs** per channel to reduce CPU overhead.  
- **Auto hardware/software flow control** (RTS/CTS, XON/XOFF).  
- **Programmable baud rates** with fractional dividers.  
- **Multi-drop mode** (9-bit) for RS-485 applications.  
- **Infrared (IrDA) encoder/decoder** support (1.0 and 1.1 compliant).  
- **Sleep mode** for power-saving operation.  
- **Industrial temperature range** (-40°C to +85°C).  

This information is based on EXAR's official documentation for the XR16L2551.

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