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SN5485J from TI,Texas Instruments

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SN5485J

Manufacturer: TI

4-BIT MAGNITUDE COMPARATORS
Partnumber Manufacturer Quantity Availability
SN5485J TI 230 In Stock

Description and Introduction

4-BIT MAGNITUDE COMPARATORS The SN5485J is a 4-bit magnitude comparator manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** Magnitude Comparator  
- **Number of Bits:** 4  
- **Output Type:** Active High  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C  
- **Package Type:** Ceramic DIP (Dual In-line Package)  
- **Propagation Delay:** Typically 30ns (varies with conditions)  

### **Descriptions:**  
The SN5485J compares two 4-bit binary numbers (A3-A0 and B3-B0) and provides three outputs indicating whether A > B, A < B, or A = B. It also features cascading inputs for expanding comparisons to larger bit lengths.  

### **Features:**  
- **4-Bit Comparison:** Directly compares two 4-bit words.  
- **Cascading Inputs:** Allows expansion to compare larger numbers.  
- **High-Speed Operation:** Fast propagation delay for efficient performance.  
- **Military Temperature Range:** Suitable for harsh environments.  
- **TTL-Compatible:** Works with standard TTL logic levels.  

This device is part of TI's SN54 series, designed for high-reliability applications.

Application Scenarios & Design Considerations

4-BIT MAGNITUDE COMPARATORS

Alternative Part Number

  • MC5485L --: Same 5485-series 4-bit magnitude comparator function in a ceramic DIP package, a direct functional equivalent from a different vendor and naming series.
  • DM5485J --: Pin-compatible 5485-series magnitude comparator in ceramic DIP, widely used as a second-source replacement for the SN5485J.
  • 74LS85N --: Modern 4-bit magnitude comparator with equivalent logic function in a plastic DIP; requires attention to temperature grade and package differences but is a common practical substitute.
  • MC3485L --: Equivalent 4-bit magnitude comparator in the same logic family, pin-compatible DIP package, widely available as a direct functional replacement.
  • DM7485N --: Standard 7485-series 4-bit magnitude comparator with identical function and pinout, suitable drop-in substitute for the SN5485J.
  • CD74HC85E --: CMOS 4-bit magnitude comparator offering the same comparison function with lower power consumption, usable as a modern alternative with pinout verification.

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