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Functional Attributes of 74HC04D:
- Inverting Functionality: The primary function is to invert the input signal. If you input a logic HIGH, you get a logic LOW as an output, and vice versa.
- High Speed: Being a member of the 74HC family, the 74HC04D is designed for high-speed operations.
- CMOS Technology: The 74HC04D benefits from low power consumption and wide power supply voltage range due to its CMOS construction.
Scenarios for Use:
The 74HC04D is used in many different digital systems, including the following: - Logic Signal Inversion: Whenever a signal needs to be inverted in a digital circuit.
- Oscillator Circuits: Used in conjunction with feedback resistors and capacitors to form simple RC oscillators.
- Reset Circuitry: Inverting a signal to generate a reset condition for microcontrollers or digital systems.
Designing an Oscillator using 74HC04D:
Utilizing one of the inverter gates from the 74HC04D, we can create a simple oscillator circuit:
1. Power Supply:
- VCC (Pin 14): Connect to a +5V power source.
- GND (Pin 7): Connect to the ground of your system.
2. Configuring the Inverter as an Oscillator:
- Input (e.g., Pin 1): Connect this pin through a resistor (let's say R1 = 100kΩ) to the output of the same gate (Pin 2).
- Output (Pin 2): Connect to the input using R1 as described. Also, connect a capacitor (let's say C1 = 10nF) from this pin to the ground. The combination of R1 and C1 will determine the frequency of oscillation.
3. Output:
- Output (Pin 2): This will be the output of your oscillator. Using an oscilloscope, you may see a square wave signal at this pin.
Design Considerations:
- Component Selection: The values of R1 and C1 determine the oscillation frequency. You can experiment with various resistor and capacitor values to change the frequency.
- Decoupling Capacitor: A 0.1-F capacitor should be positioned between VCC and GND close to the 74HC04D in order to filter out noise or voltage spikes.
- Drive Capability: Keep in mind the drive capability of the 74HC04D. If driving a load, ensure it doesn't exceed the output current specifications.
- Propagation Delay: Even though the 74HC04D is high-speed, there's still a minor propagation delay which might become significant in very high-frequency applications.
In conclusion, the 74HC04D is a versatile component with various digital applications. Its role as a building block in electronics means it can be found in a myriad of circuits, from simple logic operations to more complex digital structures.
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All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 74HC04D we delivered, we will accept the replacement or return of the 74HC04D only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of 74HC04D.
(3)The PartNo is unused and only in the original unpacked packaging.
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