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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Beskrivning Pris 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
RS-artikelnummer 305-591
Tillv. art.nrSN74121N
VarumärkeTexas Instruments
38,26 kr
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74 Monostable Multivibrator 1 -0.4mA 16mA 50 ns 80 ns @ 5 V 13mA Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 368-5654
Tillv. art.nrSN74121N
VarumärkeTexas Instruments
31,905 kr
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74 Monostable Multivibrator 1 -0.4mA 16mA 50 ns 80 ns @ 5 V 13mA Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 145-1086
Tillv. art.nrCD74HC123E
VarumärkeTexas Instruments
3,338 kr
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 17 ns 320 ns @ 2 V 0.008mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 307-632
Tillv. art.nrSN74LS123N
VarumärkeTexas Instruments
7,65 kr
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LS Monostable Multivibrator 2 -0.4mA 8mA 40 ns 56 ns @ 5 V 12mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 662-7064
Tillv. art.nrCD74HC221PWR
VarumärkeTexas Instruments
5,914 kr
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 12 ns 210 ns @ 2 V 0.008mA Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 1.15mm 5mm
RS-artikelnummer 527-647
Tillv. art.nrCD74HC4538E
VarumärkeTexas Instruments
5,575 kr
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 14 ns 250 ns @ 2 V 0.008mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 153-1982
Tillv. art.nr74HC123PW-Q100,118
VarumärkeNexperia
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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
RS-artikelnummer 145-3681
Tillv. art.nrMC14538BDTR2G
VarumärkeON Semiconductor
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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
RS-artikelnummer 146-0416
Tillv. art.nr74HCT123PW,112
VarumärkeNexperia
0,925 kr
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HCT Monostable Multivibrator 1 -4mA 4mA 150 ns 385 ns @ 50 pF - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm
RS-artikelnummer 806-3295
Tillv. art.nrMC14528BDR2G
VarumärkeON Semiconductor
1,776 kr
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MC Monostable Multivibrator 2 -0.36mA 2.4mA 10 μs 1000 ns @ 50 pF - Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm
RS-artikelnummer 662-7226
Tillv. art.nrCD74HCT123M96
VarumärkeTexas Instruments
0,957 kr
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HCT Monostable Multivibrator 2 -4mA 4mA 20 ns 68 ns @ 4.5 V 0.008mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS-artikelnummer 806-3302
Tillv. art.nrMC14538BDTR2G
VarumärkeON Semiconductor
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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
RS-artikelnummer 144-9936
Tillv. art.nrCD4047BE
VarumärkeTexas Instruments
3,148 kr
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4000 Monostable Multivibrator 1 - - 50 ns 1000 ns @ 5 V 0.02mA Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 662-6796
Tillv. art.nrCD14538BPWR
VarumärkeTexas Instruments
3,784 kr
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4000 Monostable Multivibrator 2 - - 30 ns 600 ns @ 5 V 0.1mA Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 1.15mm 5mm
RS-artikelnummer 662-9626
Tillv. art.nrCD4047BE
VarumärkeTexas Instruments
4,798 kr
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4000 Monostable Multivibrator 1 - - 50 ns 1000 ns @ 5 V 0.02mA Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 178-9183
Tillv. art.nrCD74HC423M
VarumärkeTexas Instruments
6,493 kr
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 17 ns 320 ns @ 2 V 0.008mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS-artikelnummer 922-2833
Tillv. art.nrSN74LS123DR
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2,771 kr
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LS Monostable Multivibrator 2 -0.4mA 8mA 40 ns 56 ns @ 5 V 12mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS-artikelnummer 761-4381
Tillv. art.nr74VHC123AMX
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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
RS-artikelnummer 760-3390
Tillv. art.nrLTC6993IS6-1#TRMPBF
VarumärkeAnalog Devices
48,39 kr
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LVCMOS, LVTTL Monostable Multivibrator 1 -16mA 16mA 1 μs 28ns 0.2mA Surface Mount TSOT-23 6 2.9 x 1.75 x 1mm 1mm 2.9mm
RS-artikelnummer 178-9175
Tillv. art.nrCD74HC221M
VarumärkeTexas Instruments
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 12 ns 210 ns @ 2 V 0.008mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
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