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SN54ALS520 from TI,Texas Instruments

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SN54ALS520

Manufacturer: TI

8-Bit Identity Comparators

Partnumber Manufacturer Quantity Availability
SN54ALS520 TI 50 In Stock

Description and Introduction

8-Bit Identity Comparators The SN54ALS520 is a high-speed 8-bit identity comparator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Identity Comparator  
- **Number of Bits:** 8  
- **Supply Voltage Range (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)  
- **Propagation Delay:** Typically 12ns (at VCC = 5V, TA = 25°C)  
- **Input Type:** TTL-Compatible  
- **Output Type:** Active-Low (Open-Collector)  
- **Package Options:** Ceramic DIP (Dual In-Line Package)  

### **Descriptions:**  
The SN54ALS520 compares two 8-bit binary words (A and B) and provides an active-low output when the two words are identical. It is designed for high-speed operation and is suitable for military and aerospace applications due to its extended temperature range.  

### **Features:**  
- **High-Speed Operation:** Fast propagation delay for quick comparison.  
- **TTL-Compatible Inputs:** Works with standard TTL logic levels.  
- **Open-Collector Output:** Allows wired-AND connections.  
- **Wide Operating Temperature Range:** Reliable performance in harsh environments.  
- **Low Power Consumption:** Optimized for power efficiency.  

This device is part of TI's SN54ALS series, which is known for robust performance in industrial and military applications.

Application Scenarios & Design Considerations

8-Bit Identity Comparators

Alternative Part Number

  • 5962-8686001EA --: Standard military drawing (SMD) equivalent of the 54ALS520 8-bit identity comparator, same function and pinout, qualified to MIL-PRF-38535.
  • MC54F521 --: Motorola 54F521 is an 8-bit magnitude comparator in the same 54-series military family with comparable speed and function, usable as a functional replacement.
  • 54FCT521 --: IDT 54FCT521 is a fast CMOS 8-bit identity comparator with similar logic function and military temperature range, suitable as a cross-family alternative.

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