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SN74S74 from TI,Texas Instruments

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SN74S74

Manufacturer: TI

Dual D-Type Positive-Edge-Triggered Flip-Flops With Preset And Clear

Partnumber Manufacturer Quantity Availability
SN74S74 TI 26 In Stock

Description and Introduction

Dual D-Type Positive-Edge-Triggered Flip-Flops With Preset And Clear The SN74S74 is a dual D-type positive-edge-triggered flip-flop manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Logic Type:** D-Type Flip-flop  
- **Number of Circuits:** 2  
- **Trigger Type:** Positive Edge  
- **Supply Voltage Range:** 4.75V to 5.25V  
- **Operating Temperature Range:** 0°C to 70°C  
- **Output Type:** Standard  
- **Propagation Delay Time:** 7 ns (typical)  
- **High-Level Output Current:** -1 mA  
- **Low-Level Output Current:** 20 mA  
- **Package Options:** 14-pin PDIP, SOIC, CDIP  

### **Descriptions:**  
- The SN74S74 features two independent D-type flip-flops with individual clear (CLR) and preset (PRE) inputs.  
- Data is transferred to the output (Q) on the positive edge of the clock (CLK) pulse.  
- Asynchronous clear and preset override the clock input.  

### **Features:**  
- **High-Speed Operation:** Optimized for fast switching applications.  
- **Asynchronous Clear and Preset:** Allows immediate control over the output state.  
- **Wide Operating Voltage:** Compatible with standard TTL logic levels.  
- **Schottky-Clamped Inputs:** Improves noise immunity and switching speed.  
- **Standard Pin Configuration:** Compatible with industry-standard layouts.  

This information is based on the manufacturer's datasheet.

Application Scenarios & Design Considerations

Dual D-Type Positive-Edge-Triggered Flip-Flops With Preset And Clear

Alternative Part Number

  • 74LS74 --: Low-power Schottky dual D flip-flop with the same pinout and function, widely available and a common drop-in replacement for the 74S74 in most designs.
  • 74F74 --: Fast TTL dual D flip-flop with similar speed to the 74S series and identical pinout, suitable where higher switching speed is needed.
  • MC74HC74A --: CMOS dual D flip-flop with the same logic function and pinout, offering lower power consumption when TTL-level speed is not critical.

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