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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.

Application Scenarios & Design Considerations

LOW VOLTAGE DUART WITH POWERSAVE
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.

Application Scenarios & Design Considerations

LOW VOLTAGE DUART WITH POWERSAVE

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