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SN54LS73AJ from TI,Texas Instruments

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SN54LS73AJ

Manufacturer: TI, MOT

Dual J-K Flip-Flops With Clear and 3-state Outputs

Partnumber Manufacturer Quantity Availability
SN54LS73AJ TI, MOT 498 In Stock

Description and Introduction

Dual J-K Flip-Flops With Clear and 3-state Outputs The SN54LS73AJ is a dual negative-edge-triggered J-K flip-flop with clear, manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** J-K Flip-flop  
- **Trigger Type:** Negative Edge  
- **Number of Circuits:** 2  
- **Supply Voltage (VCC):** 4.5V to 5.5V  
- **Operating Temperature Range:** -55°C to +125°C (Military grade)  
- **Package Type:** Ceramic DIP (Dual In-line Package)  
- **Propagation Delay Time:** Typically 20 ns (max 30 ns) at 5V  
- **Output Current:** High-Level: -0.4mA, Low-Level: 8mA  
- **Clear Function:** Asynchronous (active LOW)  

### **Descriptions:**  
- Each flip-flop has independent J, K, clock (CLK), and clear (CLR) inputs.  
- The outputs (Q and Q̅) change state on the negative-going edge of the clock pulse.  
- Asynchronous clear (CLR) overrides the clock and inputs, forcing Q LOW.  

### **Features:**  
- **High-Speed Operation:** Optimized for performance in digital logic applications.  
- **Wide Operating Voltage Range:** Compatible with TTL (Transistor-Transistor Logic) levels.  
- **Low Power Consumption:** LS (Low-Power Schottky) technology for reduced power usage.  
- **Military-Grade Reliability:** Designed for harsh environments.  
- **Independent Control:** Separate inputs and outputs for each flip-flop.  

This device is part of the **SN54 series**, which is the military-grade version of the **SN74 series**, offering extended temperature and reliability specifications.  

Would you like additional details on pin configurations or truth tables?

Application Scenarios & Design Considerations

Dual J-K Flip-Flops With Clear and 3-state Outputs

Alternative Part Number

  • DM74LS73AN --: Same dual J-K flip-flop with clear function in the 74LS logic family, directly pin-compatible and functionally equivalent.
  • MC74LS73AN --: Dual negative-edge-triggered J-K flip-flop with clear, same LS logic family and pinout, suitable as a direct functional replacement.
  • SN74LS73AN --: Commercial-temperature version of the same dual J-K flip-flop with clear, identical function and pinout, usable where the military temperature range is not required.
  • DM54LS73AJ --: Direct pin-compatible dual J-K flip-flop with clear in the 54LS logic family, same DIP package and military temperature range.
  • 54LS73AJ --: Equivalent 54LS73 dual negative-edge-triggered J-K flip-flop with clear, same function and package, widely available second source.
  • MC54LS73AJ --: Same 54LS73 function from another vendor with identical logic, pinout and package, suitable as a drop-in replacement.

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