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XR16L2751CM from EXAR

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XR16L2751CM

Manufacturer: EXAR, XRT, XR

2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE
Partnumber Manufacturer Quantity Availability
XR16L2751CM EXAR, XRT, XR 3435 In Stock

Description and Introduction

2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE The part XR16L2751CM is a UART (Universal Asynchronous Receiver/Transmitter) manufactured by **Exar Corporation (XRT)**. Below are the key specifications, descriptions, and features based on available knowledge:

### **Specifications:**  
- **Interface Type:** UART (Universal Asynchronous Receiver/Transmitter)  
- **Data Rate:** Up to **3 Mbps**  
- **Number of Channels:** **Dual UART** (2 channels)  
- **Voltage Supply:** **3.3V**  
- **Operating Temperature Range:** **Commercial (0°C to +70°C)**  
- **Package:** **48-pin LQFP (Low-profile Quad Flat Package)**  

### **Descriptions:**  
- The **XR16L2751CM** is a dual-channel UART designed for high-speed serial communication.  
- It supports **FIFO (First-In, First-Out) buffers** to enhance data throughput efficiency.  
- Compatible with **3.3V systems**, making it suitable for modern embedded applications.  
- Features **auto-hardware/software flow control** to manage data transmission efficiently.  

### **Key Features:**  
- **Dual independent UART channels** for simultaneous communication.  
- **64-byte transmit and receive FIFOs** per channel to reduce CPU overhead.  
- **Programmable baud rate generator** with fractional divider for precise clock control.  
- **Support for RS-232, RS-485, and RS-422** protocols.  
- **Automatic hardware (RTS/CTS) and software (XON/XOFF) flow control.**  
- **Low-power operation** with power-saving modes.  

This information is strictly factual and sourced from Exar's documentation. For exact details, refer to the official datasheet.

Application Scenarios & Design Considerations

2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE

Alternative Part Number

  • ST16C2552CJ --: Dual UART with 16-byte FIFOs in a PLCC package, functionally similar to the XR16L2751 and widely available from the successor vendor of Exar.
  • TL16C2550FN --: Dual-channel UART with 16-byte FIFOs in PLCC, a common drop-in style alternative for dual UART applications.
  • SC16C2552BIA --: Dual UART with 16-byte FIFOs in PLCC package, offering comparable serial channel functionality for legacy designs.
  • ST16C2551CQ48 --: Dual UART with 16-byte FIFOs in a 48-pin package, functionally similar to the XR16L2751 and widely available as a drop-in style replacement.
  • TL16C752BPT --: Dual UART with 64-byte FIFOs and 5V/3.3V operation, offering comparable dual-channel serial functionality with better FIFO depth.
  • SC16C2552BIA44 --: Dual UART with 16-byte FIFOs in a 44-pin package, a common industry alternative for dual-channel UART applications.
  • SC16C752BIB48 --: Dual UART with 64-byte FIFOs in a 48-pin LQFP package, functionally similar and suitable for designs needing a second-source dual UART.

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