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XR16L2551IM from XRT

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XR16L2551IM

Manufacturer: XRT, XR, EXAR

LOW VOLTAGE DUART WITH POWERSAVE
Partnumber Manufacturer Quantity Availability
XR16L2551IM XRT, XR, EXAR 1289 In Stock

Description and Introduction

LOW VOLTAGE DUART WITH POWERSAVE The part **XR16L2551IM** is a **dual universal asynchronous receiver/transmitter (UART)** manufactured by **EXAR Corporation** (now part of **MaxLinear**). Below are the key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Interface Type:** UART  
- **Number of Channels:** 2 (Dual UART)  
- **Data Rate:** Up to **1.5 Mbps**  
- **Voltage Supply:** **3.3V**  
- **Operating Temperature Range:** **-40°C to +85°C**  
- **Package:** **48-pin LQFP**  

### **Descriptions:**  
- The **XR16L2551IM** is a **dual-channel UART** designed for high-performance serial communication.  
- It supports **16-byte FIFOs** for both transmit and receive operations to reduce CPU overhead.  
- The device is compatible with **3.3V systems** and offers programmable baud rates.  

### **Features:**  
- **Dual full-duplex UART channels**  
- **16-byte transmit and receive FIFOs** per channel  
- **Programmable baud rate generator** with fractional divider  
- **Automatic hardware/software flow control** (RTS/CTS, XON/XOFF)  
- **Support for 5, 6, 7, or 8-bit data formats**  
- **Infrared (IrDA) encoder/decoder support**  
- **Low-power sleep mode**  
- **Industrial temperature range (-40°C to +85°C)**  

This information is based on EXAR's official documentation before its acquisition by MaxLinear. For the latest details, refer to MaxLinear’s resources.

Application Scenarios & Design Considerations

LOW VOLTAGE DUART WITH POWERSAVE

Alternative Part Number

  • ST16C2551CJ44 --: Dual UART with 16-byte FIFOs in a 44-pin PLCC, functionally equivalent to the XR16L2551 and widely available as a drop-in replacement.
  • TL16C2550IPFB --: Dual-channel UART with 16-byte FIFOs, similar register set and pinout, suitable substitute when the XR16L2551 is unavailable.
  • SC16C2550BIB48 --: Dual UART with 16-byte FIFOs offering comparable functionality and interface, usable as an alternative with minor board-level adaptation.
  • ST16C2551CQ48 --: Pin-compatible dual UART in the same 16C255x family lineage, widely available and functionally equivalent to the XR16L2551.
  • SC16C2551IB48 --: Dual UART offering comparable functionality and interface, suitable as an alternative when the original XR part is unavailable.
  • TL16C2550IFN --: Dual-channel UART with 16-byte FIFOs and similar register interface, widely available and commonly used as a cross-reference for the XR16L2551.

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