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 368-5654
Tillv. art.nrSN74121N
VarumärkeTexas Instruments
32,327 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 305-591
Tillv. art.nrSN74121N
VarumärkeTexas Instruments
36,09 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 145-1019
Tillv. art.nrCD74HCT221M
VarumärkeTexas Instruments
5,268 kr
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HCT Monostable Multivibrator 2 -4mA 4mA 14 ns 42 ns @ 4.5 V 0.008mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS-artikelnummer 919-8985
Tillv. art.nrLTC6993IS6-1TRMPBF
VarumärkeLinear Technology
25,63 kr
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LVCMOS, LVTTL Monostable Multivibrator 2 -16mA 16mA 1 μs 28ns 0.2mA Surface Mount TSOT-23 6 2.9 x 1.75 x 1mm 1mm 2.9mm
RS-artikelnummer 662-9626
Tillv. art.nrCD4047BEE4
VarumärkeTexas Instruments
7,28 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 442-814
Tillv. art.nrSN74LS122N
VarumärkeTexas Instruments
11,58 kr
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LS Monostable Multivibrator 1 -0.4mA 8mA 40 ns 56 ns @ 5 V 6mA Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 368-5991
Tillv. art.nrSN74LS122N
VarumärkeTexas Instruments
9,62 kr
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LS Monostable Multivibrator 1 -0.4mA 8mA 40 ns 56 ns @ 5 V 6mA Through Hole PDIP 14 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 663-0357
Tillv. art.nrCD74HC423M
VarumärkeTexas Instruments
6,804 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 368-6001
Tillv. art.nrSN74LS123N
VarumärkeTexas Instruments
6,866 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 919-8989
Tillv. art.nrLTC6993CS6-1TRMPBF
VarumärkeLinear Technology
22,385 kr
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LVCMOS, LVTTL Monostable Multivibrator 2 -16mA 16mA 1 μs 28ns 0.2mA Surface Mount TSOT-23 6 2.9 x 1.75 x 1mm 1mm 2.9mm
RS-artikelnummer 153-2888
Tillv. art.nr74HC123PW-Q100,118
VarumärkeNexperia
3,346 kr
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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 518-9445
Tillv. art.nrMC14528BDG
VarumärkeON Semiconductor
5,48 kr
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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
RS-artikelnummer 662-8461
Tillv. art.nrSN74LV221APWR
VarumärkeTexas Instruments
5,016 kr
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LV Monostable Multivibrator 2 -12mA 12mA 5 ns 36 ns @ 2.5 V 0.02mA Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 1.15mm 5mm
RS-artikelnummer 709-2071
Tillv. art.nrCD74HC123EE4
VarumärkeTexas Instruments
5,336 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 662-7005
Tillv. art.nrCD74HC123M96
VarumärkeTexas Instruments
3,96 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 162-6944
Tillv. art.nrCD74HC221PWR
VarumärkeTexas Instruments
2,26 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 662-7064
Tillv. art.nrCD74HC221PWR
VarumärkeTexas Instruments
5,79 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 709-3071
Tillv. art.nrCD74HC221EE4
VarumärkeTexas Instruments
7,652 kr
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 12 ns 210 ns @ 2 V 0.008mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 186-8822
Tillv. art.nrMC100EL32DG
VarumärkeON Semiconductor
49,009 kr
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ECL Divider 2 - - - - - Surface Mount SOIC 8 5 x 4 x 1.5mm 1.5mm 5mm
RS-artikelnummer 527-467
Tillv. art.nrCD14538BE
VarumärkeTexas Instruments
3,788 kr
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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
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