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SN74109N from TI,Texas Instruments

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SN74109N

Manufacturer: TI

DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH PRESET AND CLEAR

Partnumber Manufacturer Quantity Availability
SN74109N TI 186 In Stock

Description and Introduction

DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH PRESET AND CLEAR The SN74109N is a dual positive-edge-triggered J-K flip-flop with preset and clear, manufactured by Texas Instruments.  

### **Specifications:**  
- **Logic Type:** J-K Flip-Flop  
- **Number of Circuits:** 2  
- **Trigger Type:** Positive Edge  
- **Supply Voltage (VCC):** 4.75V to 5.25V (Nominal 5V)  
- **High-Level Output Current (IOH):** -0.4mA  
- **Low-Level Output Current (IOL):** 16mA  
- **Propagation Delay Time (tpd):** 30ns (Typical)  
- **Operating Temperature Range:** 0°C to 70°C  
- **Package / Case:** 16-DIP (Dual In-Line Package)  

### **Descriptions and Features:**  
- **Dual Flip-Flop:** Contains two independent J-K flip-flops in a single IC.  
- **Positive-Edge Triggering:** Changes state on the rising edge of the clock signal.  
- **Preset and Clear Inputs:** Asynchronous preset (PRE) and clear (CLR) for direct control.  
- **J and K Inputs:** Allows toggling, setting, or resetting the output based on input conditions.  
- **Complementary Outputs:** Each flip-flop provides true (Q) and inverted (Q̅) outputs.  
- **TTL-Compatible:** Designed for compatibility with TTL logic levels.  
- **Wide Operating Voltage:** Optimized for 5V operation.  

This device is commonly used in digital systems for data storage, counters, and sequential logic applications.

Application Scenarios & Design Considerations

DUAL J-K POSITIVE-EDGE-TRIGGERED FLIP-FLOPS WITH PRESET AND CLEAR

Alternative Part Number

  • CD4013BE --: Dual D-type flip-flop with set/reset, functionally similar to the SN74109 dual J-K flip-flop; widely available CMOS alternative with different series naming.
  • MC14013BCP --: Dual D flip-flop with set and reset in a different series (4000-series CMOS), a common drop-in style replacement for dual flip-flop logic.
  • HEF4013BP --: Dual D-type flip-flop with set/reset, 4000-series CMOS logic offering a distinct naming scheme and similar dual flip-flop function.

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