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
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 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 164-6068
Tillv. art.nrLTC6993CS6-2#TRMPBF
VarumärkeAnalog Devices
20,089 kr
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LTC Monostable Multivibrator 1 -16mA +16mA 1 μs 28 ns @ 5 pF - Surface Mount TSOT-23 6 2.9 x 1.75 x 0.9mm 0.9mm 2.9mm
RS-artikelnummer 164-6069
Tillv. art.nrLTC6993CS6-2#TRMPBF
VarumärkeAnalog Devices
34,175 kr
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LTC Monostable Multivibrator 1 -16mA +16mA 1 μs 28 ns @ 5 pF - Surface Mount TSOT-23 6 2.9 x 1.75 x 0.9mm 0.9mm 2.9mm
RS-artikelnummer 170-3421
Tillv. art.nrMC14538BDR2G
VarumärkeON Semiconductor
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4000 Monostable Multivibrator 2 - - 80 ns 600 ns @ 5 V 0.7mA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm
RS-artikelnummer 178-8815
Tillv. art.nrCD74HC123PWR
VarumärkeTexas Instruments
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 17 ns 320 ns @ 2 V 0.008mA Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 1.15mm 5mm
RS-artikelnummer 662-7226
Tillv. art.nrCD74HCT123M96
VarumärkeTexas Instruments
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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 171-3459
Tillv. art.nr74VHC221AFT
VarumärkeToshiba
2,378 kr
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74VHC Monostable Multivibrator 27 -8mA 8mA 5 ns 24.5ns 80µA Surface Mount TSSOP 16 5 x 4.4 x 1mm 1mm 5mm
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 527-293
Tillv. art.nrCD4098BE
VarumärkeTexas Instruments
4,074 kr
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4000 Monostable Multivibrator 2 - - 20 ns 500 ns @ 5 V 0.02mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
RS-artikelnummer 355-8861
Tillv. art.nrHEF4047BT,652
VarumärkeNexperia
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4000 Monostable Multivibrator 1 - - 70 ns 320 ns@ 5 V 0.08mA Surface Mount SOIC 14 8.75 x 4 x 1.45mm 1.45mm 8.75mm
RS-artikelnummer 151-3419
Tillv. art.nr74HC4538PW,118
VarumärkeNexperia
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HC Monostable Multivibrator 2 -5.2mA 5.2mA 20 ns 400 ns @ 15 pF - Surface Mount TSSOP16 16 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm
RS-artikelnummer 518-9445A
Tillv. art.nrMC14528BDG
VarumärkeON Semiconductor
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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 145-1251
Tillv. art.nrSN74LV123APW
VarumärkeTexas Instruments
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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 170-8023
Tillv. art.nrHEF4047BT,653
VarumärkeNexperia
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HEF - 1 -2.4mA 2.4mA 220 ns 320 ns @ 50 pF - Surface Mount SO 14 8.75 x 4 x 1.45mm 1.45mm 8.75mm
RS-artikelnummer 178-6982
Tillv. art.nrHEF4528BT,652
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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
RS-artikelnummer 833-759
Tillv. art.nrCD74HCT221M
VarumärkeTexas Instruments
11,99 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 151-3398
Tillv. art.nr74HC123PW,118
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HC Monostable Multivibrator 2 -4mA 4mA 26 ns 385 ns @ 15 pF - Surface Mount TSSOP16 16 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm
RS-artikelnummer 662-7005
Tillv. art.nrCD74HC123M96
VarumärkeTexas Instruments
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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 919-8985
Tillv. art.nrLTC6993IS6-1TRMPBF
VarumärkeAnalog Devices
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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
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