Overview
The SN74LS74AN is a dual D-type positive-edge-triggered flip-flop produced by Texas Instruments. This integrated circuit is part of the LS series and is designed for high-speed logic applications. It features individual clear and preset inputs, making it versatile for various digital logic designs. The SN74LS74AN is RoHS compliant and is packaged in a 14-pin DIP format, ensuring compatibility with standard breadboards and PCBs. Its primary target users include electronics engineers and hobbyists working on digital circuits, particularly in applications requiring reliable clocked storage and data transfer.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Function | Dual D-Type Flip-Flop | - | - |
| Logic Family | LS | - | - |
| Number of Circuits | 2 | - | - |
| Output Type | Complementary | - | - |
| Clock Trigger | Positive Edge | - | - |
| Supply Voltage | 4.75 - 5.25 | V | - |
| Operating Temperature | 0 - 70 | °C | - |
| Propagation Delay | 40 | ns | @ Nominal Supply |
| Maximum Frequency | 25 | MHz | @ Nominal Supply |
| Package | 14-Pin DIP | - | - |
Key Features
- Dual D-type flip-flops with individual clear and preset inputs.
- Positive-edge-triggered clocking for reliable data transfer.
- Complementary outputs for enhanced flexibility in circuit design.
- High-speed operation with a maximum frequency of 25 MHz.
- RoHS compliant, ensuring environmental safety.
Applications
The SN74LS74AN is widely used in digital logic applications, including data storage, signal synchronization, and sequential logic circuits. It is particularly suited for use in microprocessors, communication systems, and industrial control systems. Its ability to handle high-speed clock signals makes it ideal for applications requiring precise timing and reliable data transfer.
Q & A
1. What is the function of the SN74LS74AN?
The SN74LS74AN is a dual D-type positive-edge-triggered flip-flop used for data storage and transfer in digital circuits.
2. What is the operating voltage range?
The operating voltage range is 4.75 V to 5.25 V.
3. What is the maximum clock frequency?
The maximum clock frequency is 25 MHz.
4. Does it have preset and clear inputs?
Yes, it features individual preset and clear inputs for each flip-flop.
5. What is the propagation delay?
The propagation delay is 40 ns at nominal supply voltage.
6. Is the SN74LS74AN RoHS compliant?
Yes, it is RoHS compliant.
7. What is the package type?
It is available in a 14-pin DIP package.
8. What is the operating temperature range?
The operating temperature range is 0°C to 70°C.
9. Can it be used in industrial applications?
Yes, it is suitable for industrial control systems and other high-reliability applications.
10. What is the output type?
The outputs are complementary, providing both Q and Q' signals.
