3 V Monostable Multivibrators
Reviewed by: Jon Lowy, consulting engineer
Description
A 3 V Monostable Multivibrator is an electronic circuit designed to generate a single output pulse of a specific duration in response to an external trigger signal. It remains in its stable state until triggered, at which point it switches to its unstable state for a predetermined period before returning to its stable state.
Working Principle
Monostable multivibrators operate by utilizing a timing component, such as a resistor-capacitor (RC) network, to control the duration of the output pulse. When a trigger signal is applied, the circuit transitions from its stable state to an unstable state, generating a pulse. The duration of this pulse is determined by the time constant of the RC network. This makes monostable multivibrators useful for applications requiring precise timing and pulse generation, as they can standardize pulse widths and ensure consistent timing intervals.
Applications
Monostable multivibrators are commonly used in applications where a single, precise pulse is required. For example, they can be used in digital circuits to debounce mechanical switches, ensuring that only a single pulse is generated for each switch press. They are also used in timing applications, such as generating time delays in electronic circuits, and in pulse-width modulation for controlling the power delivered to devices.
Advantages over other Monostable Multivibrators
One advantage of 3 V Monostable Multivibrators is their compatibility with low-voltage applications, making them suitable for battery-powered devices. This can be particularly beneficial in portable electronics where power efficiency is crucial. Additionally, their ability to produce stable and reproducible pulse widths makes them advantageous in precision timing applications.
Limitations
A limitation of monostable multivibrators is their reliance on external components, such as resistors and capacitors, to determine pulse duration. This can introduce variability due to component tolerances and temperature changes, potentially affecting the accuracy of the pulse width. Furthermore, they require an external trigger to operate, which may not be suitable for applications needing continuous pulse generation.
Considerations
When considering the use of a 3 V Monostable Multivibrator, it is important to evaluate the initial costs and operating expenses, which can be influenced by the choice of components and the complexity of the circuit design. Durability and accuracy are also key considerations, as the performance can be affected by environmental factors and component aging. Maintenance costs may include periodic calibration to ensure pulse accuracy, and replacement costs could arise from component failures or upgrades to improve performance.
from Nexperia B.V.
The 74AHC123A; 74AHCT123A is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXT and CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 5.5
- Features: Master Reset; ESD Protection
- Type: Retriggerable
- Package Type: Other; SOT763-1
from Texas Instruments
CMOS Dual Precision Monostable Multivibrator (125 C Operation) 16-CDIP -55 to 125 [See More]
- Supply Voltage: 3V; 10
- Propagation Delay: 300
- Package Type: Other; CDIP,PDIP,SO,SOIC,TSSOP,WAFERSALE
- Operating Current: 0.3000
from Nexperia B.V.
The 74AHC123A; 74AHCT123A is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXT and CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 5.5
- Features: Master Reset; ESD Protection
- Type: Retriggerable
- Package Type: Other; SO16 (SOT109-1)
from Texas Instruments
CMOS Low-Power Monostable/Astable Multivibrator 14-PDIP -55 to 125 [See More]
- Supply Voltage: 3V; 10
- Logic Family: CD4000
- Package Type: Other; PDIP,SO,SOIC,TSSOP
- Propagation Delay: 450
from Nexperia B.V.
The 74AHC123A; 74AHCT123A is a dual retriggerable monostable multivibrator with reset. The basic output pulse width is programmed by selection of external components (REXT and CEXT). Once triggered this basic pulse width may be extended by retriggering either of the edge triggered inputs (nA or... [See More]
- Supply Voltage: 2.5V; 3V; 3.3V; 3.6V; 5V; 2.0 - 5.5
- Features: Master Reset; ESD Protection
- Type: Retriggerable
- Package Type: Other; SOT403-1
from Texas Instruments
CMOS Low-Power Monostable/Astable Multivibrator 14-CDIP -55 to 125 [See More]
- Supply Voltage: 3V; 18
- Logic Family: CD4000
- Package Type: Other; CDIP,CDIP SB,DIESALE,WAFERSALE
- Propagation Delay: 450
from Nexperia B.V.
The 74LVC1G123 is a single retriggerable monostable multivibrator with Schmitt trigger inputs. Output pulse width is controlled by three methods: The basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT). Once triggered, the basic output pulse width may be... [See More]
- Supply Voltage: 1.8V; 2.5V; 3V; 3.3V; 3.6V; 5V; 1.65 - 5.5
- Features: Schmitt Trigger; ESD Protection
- Type: Retriggerable
- Package Type: Other; SOT765-1
from Texas Instruments
CMOS Dual Monostable Multivibrator 16-PDIP -55 to 125 [See More]
- Supply Voltage: 3V; 10
- Logic Family: CD4000
- Package Type: Other; PDIP,SO,SOIC,TSSOP
- Propagation Delay: 250
from Nexperia B.V.
The 74LVC1G123 is a single retriggerable monostable multivibrator with Schmitt trigger inputs. Output pulse width is controlled by three methods: The basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT). Once triggered, the basic output pulse width may be... [See More]
- Supply Voltage: 1.8V; 2.5V; 3V; 3.3V; 3.6V; 5V; 1.65 - 5.5
- Features: Schmitt Trigger; ESD Protection
- Type: Retriggerable
- Package Type: Other; SOT505-2
from Texas Instruments
CMOS Dual Monostable Multivibrator 16-CDIP -55 to 125 [See More]
- Supply Voltage: 3V; 18
- Logic Family: CD4000
- Package Type: Other; CDIP,WAFERSALE
- Propagation Delay: 250
from Nexperia B.V.
The 74LVC1G123 is a single retriggerable monostable multivibrator with Schmitt trigger inputs. Output pulse width is controlled by three methods: The basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT). Once triggered, the basic output pulse width may be... [See More]
- Supply Voltage: 1.8V; 2.5V; 3V; 3.3V; 3.6V; 5V; 1.65 - 5.5
- Features: Schmitt Trigger; ESD Protection
- Type: Retriggerable
- Package Type: Other; SOT1116
from Nexperia B.V.
The 74LVC1G123 is a single retriggerable monostable multivibrator with Schmitt trigger inputs. Output pulse width is controlled by three methods: The basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT). Once triggered, the basic output pulse width may be... [See More]
- Supply Voltage: 1.8V; 2.5V; 3V; 3.3V; 3.6V; 5V; 1.65 - 5.5
- Features: Schmitt Trigger; ESD Protection
- Type: Retriggerable
- Package Type: Other; SOT1203
from Nexperia B.V.
The 74LVC1G123 is a single retriggerable monostable multivibrator with Schmitt trigger inputs. Output pulse width is controlled by three methods: The basic pulse is programmed by selection of an external resistor (REXT) and capacitor (CEXT). Once triggered, the basic output pulse width may be... [See More]
- Supply Voltage: 1.8V; 2.5V; 3V; 3.3V; 3.6V; 5V; 1.65 - 5.5
- Features: Schmitt Trigger; ESD Protection
- Type: Retriggerable
- Package Type: Other; SOT833-1