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XR16C850CJ from EXAR

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XR16C850CJ

Manufacturer: EXAR, XRT, XR

UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control
Partnumber Manufacturer Quantity Availability
XR16C850CJ EXAR, XRT, XR 871 In Stock

Description and Introduction

UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control The XR16C850CJ is a UART (Universal Asynchronous Receiver/Transmitter) manufactured by Exar (XRT). Below are its key specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Interface Type:** UART (Universal Asynchronous Receiver/Transmitter)  
- **Data Rate:** Up to 3 Mbps  
- **FIFO Buffers:** 64-byte transmit and receive FIFOs  
- **Voltage Supply:** 3.3V or 5V operation  
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C)  
- **Package:** 48-pin LQFP (Low-Profile Quad Flat Package)  
- **Number of Channels:** Single-channel UART  
- **Additional Features:**  
  - Auto hardware/software flow control  
  - Programmable baud rate generator  
  - Infrared (IrDA) encoder/decoder support  
  - Sleep mode for power saving  

### **Descriptions:**  
The XR16C850CJ is a high-performance UART designed for serial communication applications. It provides reliable data transmission with enhanced features such as large FIFOs, flexible baud rate generation, and support for multiple operating voltages.  

### **Features:**  
- **64-byte FIFOs:** Reduces CPU overhead by buffering data.  
- **Auto Flow Control:** Supports RTS/CTS and XON/XOFF protocols.  
- **Programmable Baud Rate:** Allows custom baud rate settings.  
- **Infrared Support:** Compatible with IrDA 1.0 standards.  
- **Sleep Mode:** Low-power mode for energy efficiency.  
- **Wide Voltage Range:** Operates at 3.3V or 5V.  
- **Industrial Temperature Support:** Available in industrial-grade variants.  

This information is strictly based on the manufacturer's specifications. For exact details, refer to the official datasheet from Exar (XRT).

Application Scenarios & Design Considerations

UART with 128-byte FIFO’s FIFO Counters and Half-duplex Control

Alternative Part Number

  • ST16C550CJ --: Pin-compatible UART in the same PLCC package with similar functionality; MaxLinear now owns the former Exar UART line, making this a natural drop-in replacement.
  • TL16C550CJ --: Widely available 16C550-compatible UART in PLCC package with FIFO, functionally equivalent to the XR16C850 for most serial applications.
  • SC16C550BIB48 --: Industry-standard 16C550-compatible UART with FIFO, offering similar register set and serial functionality as an alternative source.
  • ST16C850CJ44 --: Pin-compatible UART with 128-byte FIFO from the ST16C850 family, widely used as a direct replacement for the XR16C850 in 44-pin PLCC sockets.
  • TL16C850FN --: TI octal UART with 128-byte FIFO offering similar register-level compatibility and 44-pin PLCC packaging for serial port designs.
  • SC16C850IBS --: NXP 16C850-class UART with 128-byte FIFO and comparable feature set, suitable as a functional substitute when layout allows package adaptation.
  • TL16C550CFN --: Industry-standard 16C550-compatible UART offering equivalent asynchronous serial functionality; verify package and FIFO depth against the original design.

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