Monostable multivibrators, or one-shot multivibrators, feature a stable and unstable state and are digital logic integrated circuits that are used as timers and are designed to produce a single (high or low) output pulse. Their unstable state resulting from the trigger impulse is a transient state, and the circuit returns to its stable state immediately after elapsing the fixed time.
These ICs are also referred to as ½ stable type multivibrators because they feature two transistors added with a resistor network and one resistor-capacitor that determine the time length before returning the triggered circuit to its stable state.
Why use a monostable multivibrator?
This device requires a single pulse for its operation, eliminating the need for multiple pulses. Furthermore, they are cost-effective, easily constructed, and feature simple designs.
Monostable multivibrator types:
These multivibrators are classified into two types and include:
- Re-triggerable Monostable Multivibrators
These multivibrators are re-triggerable with repeated triggering pulses and remain in an unstable state.
- Non-re-triggerable Monostable Multivibrators
These devices remain intact in an unstable state for a specified time period.
Monostable multivibrators packaging options:
These multivibrators are available in a wide range of pin numbers and IC package types, such as:
Types of Basic IC Package
- Ball Grid Array
- Dual In-Line Package
- Quad Flat Package
- Single In-Line Package
Variants of QFP Packaging
- Low-Profile Quad Flat Package
- Thin Quad Flat Package
Variants of BGA Packaging
What are monostable multivibrators used for?
- These devices are ideal for generating specialized circuit timed delay.
- They are also suitable for temporary memories and pulse detection in electronic devices used as a timer.
