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IMP16C554

Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs

Partnumber Manufacturer Quantity Availability
IMP16C554 500 In Stock

Description and Introduction

Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs The IMP16C554 is a quad universal asynchronous receiver/transmitter (QUART) integrated circuit manufactured by Exar Corporation. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Exar Corporation  
- **Type:** Quad UART (Universal Asynchronous Receiver/Transmitter)  
- **Data Rate:** Up to 1.5 Mbps  
- **Operating Voltage:** 5V  
- **Number of Channels:** 4 independent UART channels  
- **FIFO Buffers:** 16-byte transmit and receive FIFOs per channel  
- **Interrupt Support:** Programmable interrupt modes  
- **Compatibility:** Industry-standard 16C450/16C550 register set  
- **Package Options:** Available in PLCC and QFP packages  

### **Descriptions:**  
The IMP16C554 is a high-performance quad UART designed for serial communication applications. It integrates four full-duplex UART channels, each with independent baud rate generation and 16-byte FIFOs to reduce CPU overhead. It is commonly used in industrial control, networking, and embedded systems requiring multiple serial ports.  

### **Features:**  
- **Four Independent UART Channels:** Each with full-duplex operation.  
- **16-Byte FIFOs:** Reduces CPU interrupts and improves efficiency.  
- **Programmable Baud Rates:** Supports rates up to 1.5 Mbps.  
- **Auto Hardware/Software Flow Control:** Includes RTS/CTS and XON/XOFF support.  
- **Modem Control Signals:** Supports DTR, DSR, RTS, CTS, RI, and DCD.  
- **Low Power Consumption:** Suitable for power-sensitive applications.  
- **Industrial Temperature Range:** Operates reliably in harsh environments.  
- **Compatibility:** Backward-compatible with 16C450/16C550 UARTs.  

This information is based solely on the manufacturer's specifications and datasheet.

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