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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Description Prix 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
N° de stock RS 103-8390
Référence fabricantHEF4047BT,652
MarqueNexperia
0,404 €
Each (In a Tube of 57)
Unité
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
N° de stock RS 662-6796
Référence fabricantCD14538BPWR
0,368 €
Each (In a Pack of 5)
Unité
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
N° de stock RS 162-6914
Référence fabricantCD14538BPWR
0,129 €
Each (On a Reel of 2000)
Unité
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
N° de stock RS 640-131
Référence fabricantSN74LS221N
1,13 €
Each
Unité
LS Monostable Multivibrator 2 -0.4mA 8mA 40 ns 80 ns @ 5 V 4.7mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
N° de stock RS 178-9175
Référence fabricantCD74HC221M
0,68 €
Each (In a Tube of 40)
Unité
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
N° de stock RS 809-5983
Référence fabricantSN74LVC1G123DCTR
0,387 €
Each (In a Pack of 15)
Unité
LVC Monostable Multivibrator 1 -32mA 32mA 2.5 ns - 20µA Surface Mount SM 8 3.15 x 2.9 x 1.2mm 1.2mm 3.15mm
N° de stock RS 178-9223
Référence fabricantCD74HC221MT
0,773 €
Each (In a Tube of 40)
Unité
HC Monostable Multivibrator 2 -5.2mA 5.2mA 595 μs 315 ns @ 50 pF 160µA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm
N° de stock RS 145-1086
Référence fabricantCD74HC123EE4
0,455 €
Each (In a Tube of 25)
Unité
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
N° de stock RS 709-2071
Référence fabricantCD74HC123EE4
0,556 €
Each (In a Pack of 5)
Unité
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
N° de stock RS 170-3421
Référence fabricantMC14538BDR2G
0,151 €
Each (On a Reel of 2500)
Unité
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
N° de stock RS 688-1549
Référence fabricantMC14538BDR2G
0,452 €
Each (In a Pack of 5)
Unité
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
N° de stock RS 809-6273
Référence fabricantCD74HC221MT
0,829 €
Each (On a Tape of 10)
Unité
HC Monostable Multivibrator 2 -5.2mA 5.2mA 595 μs 315 ns@ 50 pF 160µA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm
N° de stock RS 760-3397
Référence fabricantLTC6993CS6-1#TRMPBF
3,48 €
Each
Unité
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
N° de stock RS 921-2808
Référence fabricantSN74LVC1G123DCTR
0,245 €
Each (On a Reel of 3000)
Unité
LVC Monostable Multivibrator 1 -32mA 32mA 2.5 ns - 20µA Surface Mount SM 8 3.15 x 2.9 x 1.2mm 1.2mm 3.15mm
N° de stock RS 162-4277
Référence fabricantSN74221N
4,549 €
Each (In a Tube of 25)
Unité
74 Monostable Multivibrator 2 -0.8mA 16mA 20 ns 80 ns @ 5 V 26mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
N° de stock RS 303-927
Référence fabricantSN74221N
5,00 €
Each
Unité
74 Monostable Multivibrator 2 -0.8mA 16mA 20 ns 80 ns @ 5 V 26mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
N° de stock RS 663-0161
Référence fabricantCD74HC221M
0,676 €
Each (In a Pack of 5)
Unité
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
N° de stock RS 919-8989
Référence fabricantLTC6993CS6-1TRMPBF
1,973 €
Each (On a Reel of 500)
Unité
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
N° de stock RS 145-0828
Référence fabricantSN74LS221N
0,96 €
Each (In a Tube of 25)
Unité
LS Monostable Multivibrator 2 -0.4mA 8mA 40 ns 80 ns @ 5 V 4.7mA Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm
N° de stock RS 146-0850
Référence fabricant74HCT4538D,112
MarqueNexperia
0,539 €
Each (In a Tube of 50)
Unité
HCT Monostable Multivibrator 2 -5.2mA 5.2mA 16 ns 90 ns @ 4.5 V 0.008mA Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm