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SN74ALS74AD from TI,Texas Instruments

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SN74ALS74AD

Manufacturer: TI

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

Partnumber Manufacturer Quantity Availability
SN74ALS74AD TI 569 In Stock

Description and Introduction

Dual Positive-Edge-Triggered D-Type Flip-Flops With Clear And Preset The SN74ALS74AD is a dual D-type positive-edge-triggered flip-flop manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Technology:** Advanced Low-Power Schottky (ALS)  
- **Supply Voltage Range:** 4.5V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **High-Level Input Voltage (Min):** 2V  
- **Low-Level Input Voltage (Max):** 0.8V  
- **High-Level Output Current (Max):** -2.6mA  
- **Low-Level Output Current (Max):** 24mA  
- **Propagation Delay Time (Max):** 15ns at 5V  
- **Power Dissipation (Max):** 50mW per flip-flop  
- **Package Type:** SOIC-14  

### **Descriptions:**  
- Contains two independent D-type flip-flops with clear and preset inputs.  
- Each flip-flop has individual data (D), clock (CLK), preset (PRE), and clear (CLR) inputs.  
- Outputs include Q and complementary Q̅ for each flip-flop.  
- Positive-edge-triggered clocking ensures synchronous operation.  

### **Features:**  
- **Edge-Triggered Operation:** Changes state on the positive clock edge.  
- **Asynchronous Clear and Preset:** Directly reset or set outputs regardless of clock state.  
- **Wide Operating Voltage:** Compatible with standard 5V logic systems.  
- **Low Power Consumption:** Optimized for power-sensitive applications.  
- **High Noise Immunity:** Schottky-clamped inputs for improved noise rejection.  
- **Balanced Propagation Delays:** Ensures reliable timing performance.  

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

Application Scenarios & Design Considerations

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

Alternative Part Number

  • 74ALS74AN --: Same 74ALS logic family dual D flip-flop with identical pinout and function, direct drop-in replacement from an alternate vendor.
  • DM74ALS74AN --: Equivalent 74ALS dual D-type flip-flop in DIP package with matching electrical characteristics and pin configuration.
  • SN74HC74N --: CMOS dual D flip-flop with similar function and pinout; acceptable substitute where slightly different speed and drive characteristics are tolerable.
  • 74ALS74 --: Same ALS-family dual D flip-flop with clear and preset; identical logic function and pinout, commonly used as a direct substitute.
  • MC74ACT74 --: Dual D-type flip-flop with clear and preset in a compatible logic family; similar speed and drive characteristics for most applications.
  • SN74HC74 --: Dual D flip-flop with clear and preset in the HC CMOS family; pin-compatible and suitable when lower power consumption is acceptable.

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