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74HC121 DIP Monostable Multivibrator

Availability:

10 in stock


The 74121 is a monostable multivibrator in a DIP-8 package, used to generate precise single output pulses in response to a triggering event. With adjustable pulse width controlled by external components, this TTL-compatible IC is ideal for pulse generation, timing circuits, and PWM applications.

රු210.00

10 in stock

Product Description: 74HC121 DIP Monostable Multivibrator

The 74HC121 is a monostable multivibrator housed in a DIP-8 package, designed to generate a single pulse output in response to a triggering input. Also known as a one-shot timer, the 74HC121 is widely used in digital systems where a precise time delay or pulse generation is required. This IC is ideal for applications involving pulse width modulation, timing circuits, and event detection.

In a monostable multivibrator configuration, the output of the 74HC121 remains in a stable low state until it receives a triggering pulse. Upon receiving the trigger, the output switches to a high state for a predefined period of time, determined by an external resistor and capacitor. After the time interval elapses, the output returns to its stable low state, ready to trigger another cycle.

The 74121 is capable of producing accurate and consistent time delays, making it suitable for use in applications such as pulse generation, timing circuits, and signal conditioning. It is TTL-compatible, ensuring it integrates easily with other TTL logic devices in digital systems.

Features:

  • Monostable Multivibrator: The 74HC121 generates a single pulse output in response to a trigger, with the pulse width controlled by an external resistor and capacitor.
  • Adjustable Pulse Width: The duration of the output pulse is adjustable by varying the values of the external resistor and capacitor, providing flexibility for different timing needs.
  • TTL Compatible: The 74HC121 is TTL-compatible, meaning it is fully compatible with other TTL logic family devices in a digital system.
  • Fast Response Time: The IC is capable of generating very short pulses with low propagation delay, making it suitable for high-speed applications.
  • Low Power Consumption: The 74HC121 is designed for low power operation, making it suitable for battery-powered and energy-efficient systems.
  • DIP-8 Package: The DIP-8 package allows easy handling, prototyping, and integration into PCBs for both development and production.
  • Triggering Input: The IC is triggered by a negative-going pulse or a falling edge, which causes the output to go high for a specified time.
  • Stable Low Output: The output remains low in the absence of a trigger, providing a stable state when not in operation.

Applications:

  • Pulse Generation: The74HC121 1is commonly used in pulse generation applications, where a fixed-duration output pulse is needed in response to an input event or signal.
  • Timing Circuits: This monostable multivibrator is widely used in timing circuits to generate precise time delays between events, ideal for clocking or timing-related tasks.
  • Pulse Width Modulation (PWM): It can be used in PWM circuits to control the width of the pulse based on the external resistor and capacitor values, making it useful in motor control, dimming circuits, or audio signal processing.
  • Event Detection: The 74HC121 is ideal for event detection, where a specific action or event (such as a signal change) needs to generate a time-limited output pulse.
  • Frequency Synthesis: In frequency synthesis and clock generation systems, the 74121 can be used to generate precise timing intervals or to divide the frequency of a clock signal.
  • Delay Circuits: In delay circuits, the 74HC121 can introduce a controlled delay before triggering a subsequent event, making it ideal for use in signal conditioning or debouncing switches.
  • Digital Signal Processing: The IC is useful in digital signal processing systems where timed pulse generation is required for synchronization or modulation.

Package Included:

  • 1 x 74HC121 Monostable Multivibrator IC
    Please note that the product image is for illustrative purposes only. The actual product may vary slightly in appearance.

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