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SCN2681AE1A44 from PH

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SCN2681AE1A44

Manufacturer: PH, PHI

Dual asynchronous receiver/transmitter (DUART)
Partnumber Manufacturer Quantity Availability
SCN2681AE1A44 PH, PHI 502 In Stock

Description and Introduction

Dual asynchronous receiver/transmitter (DUART) The SCN2681AE1A44 is a part manufactured by PH (Philips Semiconductors, now NXP Semiconductors). Below are the factual details from Ic-phoenix technical data files:

### **Manufacturer:** PH (Philips Semiconductors/NXP)  
### **Part Number:** SCN2681AE1A44  

### **Specifications:**  
- **Type:** Dual UART (Universal Asynchronous Receiver/Transmitter)  
- **Operating Voltage:** 5V  
- **Data Rate:** Up to 1 Mbps  
- **Number of Channels:** 2 (Dual UART)  
- **Interface:** Parallel (8-bit data bus)  
- **Package:** 44-pin PLCC (Plastic Leaded Chip Carrier)  

### **Descriptions:**  
- The SCN2681AE1A44 is a dual-channel UART designed for asynchronous serial communication.  
- It supports full-duplex operation and includes programmable baud rate generators.  
- Features FIFO buffers for improved data handling.  

### **Features:**  
- Dual independent UART channels  
- Programmable baud rates  
- Interrupt-driven operation  
- Parity, framing, and overrun error detection  
- Modem control signals (RTS, CTS, DTR, DSR, etc.)  
- Compatible with industry-standard UARTs (e.g., 16450/16550)  

This information is based on the available knowledge base for the SCN2681AE1A44 from PH (NXP).

Application Scenarios & Design Considerations

Dual asynchronous receiver/transmitter (DUART)

Alternative Part Number

  • ST16C2552CJ44 --: Dual UART with similar 44-pin PLCC footprint and register compatibility, widely used as a drop-in replacement for SCN2681 dual UARTs.
  • TL16C2550FN --: Dual asynchronous UART in 44-pin PLCC, functionally equivalent to the SCN2681 with FIFO support and similar pinout.
  • XR16C2550IJ44 --: Dual UART in 44-pin PLCC package offering comparable functionality and interface, suitable as an alternative with minor configuration differences.
  • XR16C2550IM44 --: Dual-channel UART in 44-pin PLCC with compatible register set and pinout, widely used as an alternative to Philips SCN2681.

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