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SC26C94C1A from PHILIPS

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SC26C94C1A

Manufacturer: PHILIPS

Quad universal asynchronous receiver/transmitter QUART

Partnumber Manufacturer Quantity Availability
SC26C94C1A PHILIPS 1051 In Stock

Description and Introduction

Quad universal asynchronous receiver/transmitter QUART The SC26C94C1A is a quad universal asynchronous receiver/transmitter (QUART) manufactured by NXP Semiconductors. Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage:** 5V ±10%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 1 Mbps  
- **Number of Channels:** 4 (Quad UART)  
- **FIFO Depth:** 16 bytes per channel (Tx and Rx)  
- **Interface:** Parallel (8-bit)  
- **Package:** PLCC-44  

### **Description:**  
The SC26C94C1A is a high-performance quad UART designed for asynchronous serial communication. It supports four independent full-duplex UART channels, each with its own baud rate generator, making it suitable for multi-channel communication applications. It is commonly used in industrial control, networking, and embedded systems.  

### **Features:**  
- **Four Independent UART Channels:** Each with full-duplex operation.  
- **16-Byte FIFOs:** Reduces CPU overhead for data handling.  
- **Programmable Baud Rate:** Up to 1 Mbps per channel.  
- **Modem Control Signals:** Includes RTS, CTS, DSR, DTR, CD, and RI for each channel.  
- **Automatic Echo, Loopback, and Local Loopback Modes:** For diagnostic testing.  
- **Interrupt Support:** Prioritized interrupts with masking capability.  
- **Low Power Consumption:** Suitable for power-sensitive applications.  
- **Industrial-Grade Reliability:** Operates in harsh environments (-40°C to +85°C).  

For detailed electrical characteristics and timing diagrams, refer to the official NXP datasheet.

Application Scenarios & Design Considerations

Quad universal asynchronous receiver/transmitter QUART

Alternative Part Number

  • ST16C554DCQ64 --: Quad UART with 16-byte FIFOs in a 64-pin QFP, functionally comparable to the SC26C94 quad UART and widely available.
  • TL16C554AIPN --: Quad asynchronous communications element with similar register set and FIFO behavior, suitable drop-in functional replacement in 64-pin packages.
  • XR16C854CQ --: Quad UART with larger FIFOs and compatible interface, often used as a modern substitute for legacy Philips quad UART devices.
  • XR68C94CJ --: Pin-compatible quad UART with the same 68C94 register set, drop-in replacement for the SC26C94 in most PLCC designs.
  • ST16C554DCJ --: Quad UART in PLCC with 16C550-compatible registers; widely available and functionally similar for multi-channel serial expansion.
  • TL16C554AFN --: Quad asynchronous communications element in PLCC, well-documented and commonly used as a substitute for quad UART applications.

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