IC Phoenix logo

Home ›  X  › X13 > XR16L2551

XR16L2551 from XR

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

XR16L2551

Manufacturer: XR, EXAR

LOW VOLTAGE DUART WITH POWERSAVE

Partnumber Manufacturer Quantity Availability
XR16L2551 XR, EXAR 419 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

Alternative Part Number

  • ST16C2551 --: Pin-compatible dual UART in the same 16C255x family lineage, widely used as a direct functional replacement for the XR16L2551.
  • TL16C2550 --: Dual-channel UART with similar register set and FIFO structure, commonly substituted in legacy serial designs.
  • SC16C2550 --: Dual UART offering comparable functionality and interface, suitable as an alternative when the original is unavailable.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips