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SN74ALS521NSR from TI,Texas Instruments

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SN74ALS521NSR

Manufacturer: TI

8-Bit Identity Comparators With Open-Collector Outputs

Partnumber Manufacturer Quantity Availability
SN74ALS521NSR TI 1804 In Stock

Description and Introduction

8-Bit Identity Comparators With Open-Collector Outputs The SN74ALS521NSR 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:** SOIC-20  
- **Mounting Type:** Surface Mount  
- **Propagation Delay Time:** 15ns (typical)  
- **Current - Output High, Low:** 2.6mA, 24mA  
- **Current - Quiescent (Max):** 25mA  

### **Descriptions:**  
- The SN74ALS521NSR compares two 8-bit words (A and B) and provides a low output if they match.  
- It features an enable input (G) for controlling the comparison operation.  
- Designed for high-speed arithmetic and logic operations in digital systems.  

### **Features:**  
- **High-Speed Operation:** Typical propagation delay of 15ns.  
- **Low Power Consumption:** Optimized for ALS technology.  
- **Wide Operating Voltage:** Supports 4.5V to 5.5V.  
- **Output Enable Control:** Allows for cascading multiple comparators.  
- **TTL-Compatible Inputs and Outputs:** Ensures compatibility with standard logic levels.  

This device is commonly used in microprocessor systems, arithmetic logic units (ALUs), and other digital comparison applications.

Application Scenarios & Design Considerations

8-Bit Identity Comparators With Open-Collector Outputs

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