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SN54ALS688J from TI,Texas Instruments

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SN54ALS688J

Manufacturer: TI

8-Bit Identity Comparators

Partnumber Manufacturer Quantity Availability
SN54ALS688J TI 50 In Stock

Description and Introduction

8-Bit Identity Comparators The SN54ALS688J is a 8-bit magnitude comparator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** 8-bit Magnitude Comparator  
- **Technology:** Advanced Low-Power Schottky (ALS)  
- **Package:** Ceramic DIP (J)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)  
- **Propagation Delay:** Typically 12ns  
- **Output Type:** TTL-Compatible  
- **Input Type:** TTL-Compatible  

### **Descriptions and Features:**  
- Performs 8-bit magnitude comparison between two binary words (A and B).  
- Provides three outputs: A > B, A < B, and A = B.  
- Cascadable for larger word sizes.  
- Low-power consumption compared to standard Schottky TTL.  
- High-speed operation with typical propagation delay of 12ns.  
- Designed for military and high-reliability applications.  

This device is part of TI's ALS logic family, optimized for speed and power efficiency in digital systems.

Application Scenarios & Design Considerations

8-Bit Identity Comparators

Alternative Part Number

  • 74ALS688N --: Same 8-bit magnitude comparator function in a DIP package, pin-compatible with the SN54ALS688J.
  • DM74ALS688N --: Direct ALS-series 8-bit identity comparator in a 20-pin DIP, functionally equivalent to the original.
  • CD74ACT688E --: ACT-series 8-bit magnitude comparator in a DIP package with similar function and compatible pinout.

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