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SN74ALS520N from TI,Texas Instruments

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SN74ALS520N

Manufacturer: TI

Octal Binary/BCD Identity Comparators With Enable
Partnumber Manufacturer Quantity Availability
SN74ALS520N TI 1042 In Stock

Description and Introduction

Octal Binary/BCD Identity Comparators With Enable The SN74ALS520N is a 8-bit identity comparator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type**: Identity Comparator  
- **Number of Bits**: 8  
- **Output Type**: Active Low  
- **Supply Voltage Range**: 4.5V to 5.5V  
- **Operating Temperature Range**: 0°C to 70°C  
- **Package / Case**: PDIP-20  
- **Propagation Delay Time**: 12ns (typical)  
- **Current - Output High, Low**: 2.6mA, 24mA  
- **Mounting Type**: Through Hole  

### **Descriptions:**  
- The SN74ALS520N compares two 8-bit binary words and provides an active-low output if they are identical.  
- It features enable inputs for cascading multiple devices.  

### **Features:**  
- **High-Speed Operation**: Optimized for fast comparison.  
- **TTL-Compatible Inputs/Outputs**: Works with standard TTL logic levels.  
- **Cascading Capability**: Multiple comparators can be connected for wider word comparisons.  
- **Wide Operating Voltage**: Supports standard 5V logic systems.  
- **Low Power Consumption**: Designed for efficient power usage.  

This information is sourced from TI's official documentation.

Application Scenarios & Design Considerations

Octal Binary/BCD Identity Comparators With Enable

Alternative Part Number

  • 74ALS520N --: Same 74ALS520 8-bit identity comparator function in a DIP-20 package, pin-compatible drop-in replacement from an alternate vendor.
  • DM74ALS520N --: Fairchild ALS-series equivalent identity comparator with identical logic function and DIP-20 pinout, suitable as a second-source substitute.
  • SN74HC688N --: 8-bit identity comparator in DIP-20 with similar function; HC family offers lower power but check timing and drive compatibility before use.
  • SN74ALS521N --: Same ALS series comparator family with similar pinout and function; verify enable/output polarity before substitution.

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