Monostable Multivibrators

Monostable multivibrators, also known as one-shot multivibrators, are a type of electronic circuit that can be used as a timer. They have one stable and one unstable state. The unstable state is caused by a trigger pulse. This state is transient, so the circuit always returns to stability after a fixed time has elapsed.

Generally, monostable multivibrator circuits are composed of two transistors, coupled with one resistor-capacitor network and one resistor network. These networks are what determines the length of time before the circuit returns to its stable state, after being triggered.

What are monostable multivibrators used for?
Monostable multivibrators are used to produce a specific timed delay within a circuit. Therefore, they can broadly be used as timers or as pulse detectors in electronic equipment.

Types of monostable multivibrators
There are two types of monostable multivibrators:

  • Retriggerable monostable multivibrators will remain in the unstable state with repeated application of the trigger pulse.
  • Non-retriggerable monostable multivibrators are unaffected by further trigger pulses, and will remain in the unstable state only for the predetermined period of time.
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Part Details Brand Logic Family Logic Function Number of Elements per Chip Maximum High Level Output Current Maximum Low Level Output Current Minimum Pulse Width Maximum Propagation Delay Time @ Maximum CL Maximum Quiescent Current Mounting Type Package Type Pin Count Dimensions Height Length Width Minimum Operating Supply Voltage Maximum Operating Supply Voltage Maximum Operating Temperature Minimum Operating Temperature Propagation Delay Test Condition Automotive Standard
Dual Monostable Multivibrator 4.2 (Minimum)mA, 16-Pin SOIC ON Semiconductor 4000 Monostable Multivibrator 2 -4.2 (Minimum)mA 4.2 (Minimum)mA 5 ns 600 ns @ 50 pF 600µA Surface Mount SOIC 16 10.45 x 7.6 x 2.4mm 2.4mm 10.45mm 7.6mm -5 V +18 V +125 °C -55 °C 50pF AEC-Q100
ON Semiconductor 74VHC123AM, 8 Monostable Multivibrator 8mA, 16-Pin SOIC ON Semiconductor VHC Monostable Multivibrator 8 -8mA 8mA 5 ns 29.5 ns @ 50 pF 40µA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 4mm 2 V +5.5 V +85 °C -40 °C 50pF -
ON Semiconductor 74VHC123AM, 8 Monostable Multivibrator 8mA, 16-Pin SOIC ON Semiconductor VHC Monostable Multivibrator 8 -8mA 8mA 5 ns 29.5 ns @ 50 pF 40µA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 4mm 2 V +5.5 V +85 °C -40 °C 50pF -
ON Semiconductor MC100EL32DG, Dual Monostable Multivibrator, Divider, 8-Pin SOIC ON Semiconductor ECL Divider 2 - - - - - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 4mm 4.2 V 5.7 V +85 °C -40 °C - -
ON Semiconductor MC100EL32DG, Dual Monostable Multivibrator, Divider, 8-Pin SOIC ON Semiconductor ECL Divider 2 - - - - - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm 4mm 4.2 V 5.7 V +85 °C -40 °C - -
ON Semiconductor MC14521BDG Monostable Multivibrator, Frequency Divider, 16-Pin SOIC ON Semiconductor - Frequency Divider - - - 120 ns 2600 ns @ 50 pF 150µA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 4mm 3 V dc 18 V dc +125 °C -55 °C 50pF AEC-Q100
ON Semiconductor MC14521BDG Monostable Multivibrator, Frequency Divider, 16-Pin SOIC ON Semiconductor - Frequency Divider - - - 120 ns 2600 ns @ 50 pF 150µA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 4mm 3 V dc 18 V dc +125 °C -55 °C 50pF AEC-Q100
Nexperia 74HC423D,652, Dual Monostable Multivibrator 5.2mA, 16-Pin SOIC Nexperia HC Monostable Multivibrator 2 -5.2mA 5.2mA 17 ns 255 ns @ 2 V 0.008mA Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 4mm 2 V 6 V +125 °C -40 °C - -
Nexperia HEF4528BT,652, Dual Monostable Multivibrator, 16-Pin SOIC Nexperia 4000 Monostable Multivibrator 2 - - 20 ns 305 ns @ 5 V 0.08mA Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 4mm 3 V 15 V +85 °C -40 °C - -
ON Semiconductor 74VHC123AMX, Dual Monostable Multivibrator 25mA, 16-Pin SOIC
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ON Semiconductor 74VHC Monostable Multivibrator 2 -25mA 25mA 90 μs 29.5ns 0.04mA Surface Mount SOIC 16 9.9 x 3.9 x 1.45mm 1.45mm 9.9mm 3.9mm 2 V 5.5 V +85 °C -40 °C 50pF -
ON Semiconductor MC14528BDG, Dual Monostable Multivibrator, 16-Pin SOIC ON Semiconductor 4000 Monostable Multivibrator 2 - - 55 ns 650 ns @ 5 V 0.02mA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 4mm 3 V 18 V +125 °C -55 °C - -
Toshiba TC74HC423AF(F), Dual Monostable Multivibrator 5.2mA, 16-Pin SOP Toshiba HC Monostable Multivibrator 2 -5.2mA 5.2mA 13 ns 210 ns @ 2 V 0.004mA Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 1.5mm 10.3mm 5.3mm 2 V 6 V +85 °C -40 °C - -
Toshiba TC74HC423AP(F), Dual Monostable Multivibrator 5.2mA, 16-Pin PDIP Toshiba HC Monostable Multivibrator 2 -5.2mA 5.2mA 13 ns 210 ns @ 2 V 0.004mA Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 3.5mm 19.25mm 6.4mm 2 V 6 V +85 °C -40 °C - -
Toshiba TC74HC4538AF(F), Dual Monostable Multivibrator 5.2mA, 16-Pin SOP Toshiba HC Monostable Multivibrator 2 -5.2mA 5.2mA 13 ns 250 ns @ 2 V 0.004mA Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 1.5mm 10.3mm 5.3mm 2 V 6 V +85 °C -40 °C - -
Toshiba TC74HC4538AP(F), Dual Monostable Multivibrator 5.2mA, 16-Pin PDIP Toshiba HC Monostable Multivibrator 2 -5.2mA 5.2mA 13 ns 250 ns @ 2 V 0.004mA Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 3.5mm 19.25mm 6.4mm 2 V 6 V +85 °C -40 °C - -
Toshiba TC74VHC123AFK(EL,K, Dual Monostable Multivibrator 8mA, 16-Pin VSSOP
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Toshiba VHC Monostable Multivibrator 2 -8mA 8mA 5 ns 24.1 ns @ 3.3 V 0.004mA Surface Mount VSSOP 16 4 x 3 x 0.8mm 0.8mm 4mm 3mm 2 V 5.5 V +85 °C -40 °C - -
Nexperia 74HC123PW-Q100,118, Dual Dual Monostable Multivibrator 5.2mA, 16-Pin TSSOP
  • £ 0.108
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Nexperia 74HC Monostable Multivibrator 2 -5.2mA 5.2mA 26 ns 385 ns @ 50 pF - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm 4.5mm 2 V 6 V +125 °C -40 °C 50pF AEC-Q101
ON Semiconductor MC14538BDTR2G, Dual Monostable Multivibrator 2.4mA, 16-Pin TSSOP ON Semiconductor MC Monostable Multivibrator 2 -0.36mA 2.4mA 10 μs 600 ns@ 50 pF - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 4.5mm 3 V 18 V +125 °C -55 °C 50pF -
Nexperia HEF4538BT,652, Dual Monostable Multivibrator, 16-Pin SOIC Nexperia 4000 Monostable Multivibrator 2 - - 20 ns 460 ns @ 5 V 0.08mA Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 4mm 3 V 15 V +85 °C -40 °C - -
Texas Instruments CD14538BE, Dual Monostable Multivibrator, 16-Pin PDIP Texas Instruments 4000 Monostable Multivibrator 2 - - 30 ns 600 ns @ 5 V 0.1mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 6.35mm 3 V 18 V +125 °C -55 °C - -
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