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SNJ54LS85W from TI,Texas Instruments

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SNJ54LS85W

Manufacturer: TI

4-Bit Magnitude Comparators

Partnumber Manufacturer Quantity Availability
SNJ54LS85W TI 41 In Stock

Description and Introduction

4-Bit Magnitude Comparators The SNJ54LS85W is a 4-bit magnitude comparator manufactured by Texas Instruments (TI).  

### **Key Specifications:**  
- **Function:** Compares two 4-bit binary numbers (A and B) and determines their relationship (A > B, A < B, or A = B).  
- **Logic Family:** LS (Low-Power Schottky)  
- **Operating Voltage:** 4.75V to 5.25V (standard TTL levels)  
- **Package:** Ceramic Flatpack (W)  
- **Temperature Range:** Military-grade (-55°C to +125°C)  
- **Propagation Delay:** Typically 23ns (varies with conditions)  
- **Power Consumption:** Low power dissipation (typical for LS series)  

### **Descriptions & Features:**  
- **Cascadable:** Can be expanded to compare larger numbers by connecting multiple SNJ54LS85W devices.  
- **Three Outputs:** Provides **A > B**, **A < B**, and **A = B** outputs.  
- **TTL-Compatible:** Works with standard TTL logic levels.  
- **High-Speed Operation:** Suitable for arithmetic and control applications.  
- **Military-Grade Reliability:** Designed for harsh environments.  

This device is commonly used in digital systems for comparison tasks, such as in arithmetic logic units (ALUs) or control circuits.

Application Scenarios & Design Considerations

4-Bit Magnitude Comparators

Alternative Part Number

  • CD74HC85E --: 4-bit magnitude comparator in the 74HC family, functionally equivalent to the LS85 with wider supply range and lower power; different series prefix makes it easy to distinguish.
  • MC74HC85N --: Pin-compatible 4-bit magnitude comparator from the 74HC logic family, a common second-source alternative to the LS85 with similar function and timing.
  • 74HCT85D --: 4-bit magnitude comparator in the 74HCT family, TTL-input compatible and functionally interchangeable with the LS85 for most comparator applications.

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