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IMP16C554-CJ68 from IMP

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IMP16C554-CJ68

Manufacturer: IMP

Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs

Partnumber Manufacturer Quantity Availability
IMP16C554-CJ68,IMP16C554CJ68 IMP 7483 In Stock

Description and Introduction

Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs The IMP16C554-CJ68 is a quad universal asynchronous receiver/transmitter (QUART) integrated circuit. Below are its key specifications, descriptions, and features based on available data:  

### **Manufacturer:**  
- Texas Instruments (TI)  

### **Specifications:**  
- **Type:** Quad UART (Universal Asynchronous Receiver/Transmitter)  
- **Number of Channels:** 4 independent UART channels  
- **Data Rate:** Up to 1.5 Mbps (operating frequency dependent)  
- **Data Format:** 5, 6, 7, or 8 bits per character with optional parity  
- **Stop Bits:** 1, 1.5, or 2 stop bits  
- **FIFO Buffers:** 16-byte transmit and receive FIFOs per channel  
- **Voltage Supply:** 5V ±10%  
- **Operating Temperature Range:** Commercial (0°C to +70°C) or Industrial (-40°C to +85°C) depending on variant  
- **Package Type:** PLCC (Plastic Leaded Chip Carrier)  

### **Descriptions:**  
- The IMP16C554-CJ68 is designed for high-performance serial communication applications.  
- It supports multiple serial protocols and is commonly used in embedded systems, industrial automation, and telecommunications.  
- Each UART channel includes independent baud rate generators and modem control signals.  

### **Features:**  
- Four full-duplex UART channels in a single chip.  
- 16-byte FIFOs for both transmit and receive operations to reduce CPU overhead.  
- Programmable baud rate generation with fractional dividers.  
- Supports RS-232, RS-422, and RS-485 interfaces.  
- Modem control functions (RTS, CTS, DSR, DTR, CD, RI).  
- Automatic software/hardware flow control (XON/XOFF, RTS/CTS).  
- Low power consumption in standby mode.  

For exact electrical characteristics and pin configurations, refer to the official datasheet from Texas Instruments.

Application Scenarios & Design Considerations

Quad Universal Asynchronous Receiver/Transmitter (UART) with FIFOs

Alternative Part Number

  • ST16C554DCJ68 --: Pin-compatible quad UART with 16-byte FIFOs in a 68-pin PLCC package, widely used as a direct replacement for the IMP16C554.
  • TL16C554AIFN --: Quad asynchronous communications element with 16-byte FIFOs, functionally equivalent to the IMP16C554 and available in PLCC packaging.
  • SC16C554BIB64 --: Quad UART with 16-byte FIFOs offering similar register-level compatibility, suitable as an alternative with package adaptation.
  • SC16C554BIB80 --: Quad UART with 16-byte FIFOs offering similar register set and functionality, suitable as a functional replacement with package adaptation.

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