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 Price 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庫存編號 760-3397
製造零件編號LTC6993CS6-1#TRMPBF
HK$36.48
單位
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庫存編號 124-2262
製造零件編號74HC4538D,652
BrandNexperia
HK$3.091
毎管:50 個
單位
HC Monostable Multivibrator 2 -5.2mA 5.2mA 14 ns 265 ns @ 2 V 0.008mA Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm
RS庫存編號 146-0850
製造零件編號74HCT4538D,112
BrandNexperia
HK$2.793
毎管:50 個
單位
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
RS庫存編號 151-3419
製造零件編號74HC4538PW,118
BrandNexperia
HK$3.732
/個 (每包:25個)
單位
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庫存編號 355-8861
製造零件編號HEF4047BT,652
BrandNexperia
HK$12.77
單位
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庫存編號 145-6019
製造零件編號SN74LV221AD
HK$7.932
毎管:40 個
單位
LV Monostable Multivibrator 2 -12mA 12mA 5 ns 36 ns @ 2.5 V 0.02mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS庫存編號 528-078
製造零件編號CD74HC4538M96
HK$3.963
/個 (每包:25個)
單位
HC Monostable Multivibrator 2 -5.2mA 5.2mA 14 ns 250 ns @ 2 V 0.008mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS庫存編號 527-619
製造零件編號CD74HC4538M
HK$4.151
毎管:40 個
單位
HC Monostable Multivibrator 2 -5.2mA 5.2mA 14 ns 250 ns @ 2 V 0.008mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS庫存編號 151-3351
製造零件編號74HC4538PW,118
BrandNexperia
HK$1.62
個 (在毎卷:2500)
單位
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庫存編號 145-5995
製造零件編號CD4098BM
HK$2.03
毎管:40 個
單位
4000 Monostable Multivibrator 2 - - 20 ns 500 ns @ 5 V 0.02mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS庫存編號 145-1238
製造零件編號SN74AHCT123AD
HK$2.006
毎管:40 個
單位
AHCT Monostable Multivibrator 2 -8mA 8mA 5 ns 11 ns @ 5 V 0.004mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS庫存編號 807-2343
製造零件編號CD14538BM
HK$3.033
/個 (每包:40個)
單位
4000 Monostable Multivibrator 2 -4.2mA 4.2mA 140 ns 600 ns@ 50 pF 3000µA Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm
RS庫存編號 653-2244
製造零件編號BAS70-06W,115
BrandNexperia
HK$1.334
/個 (每包:10個)
單位
- - 2 - - - - - Surface Mount UMT 3 1 x 2.2 x 1.35mm 1mm 2.2mm
RS庫存編號 662-7351
製造零件編號CD74HCT4538M96
HK$4.889
/個 (每包:10個)
單位
HCT Monostable Multivibrator 2 -4mA 4mA 16 ns 55 ns @ 4.5 V 0.008mA Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 1.58mm 9.9mm
RS庫存編號 178-4724
製造零件編號MC14528BDG
HK$3.635
毎管:48 個
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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庫存編號 760-3390
製造零件編號LTC6993IS6-1#TRMPBF
HK$39.63
單位
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庫存編號 663-2678
製造零件編號SN74LV123APW
HK$6.828
/個 (每包:5個)
單位
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庫存編號 170-8002
製造零件編號HEF4538BT,653
BrandNexperia
HK$1.507
個 (在毎卷:2500)
單位
HEF Monostable Multivibrator 2 -2.4mA 2.4mA 90 ns 460 ns @ 50 pF - Surface Mount SO 16 10 x 4 x 1.45mm 1.45mm 10mm
RS庫存編號 756-2915
製造零件編號TC74HC123AF(ELNE,F
BrandToshiba
HK$4.556
/個 (每包:5個)
單位
74HC Monostable Multivibrator 2 -5.2mA 5.2mA 95 ns@ 2 V 295ns 0.04mA Surface Mount SOP 16 10.8 x 5.3 x 1.5mm 1.5mm 10.8mm
RS庫存編號 121-9215
製造零件編號SN74AHC123APWR
HK$1.246
個 (在毎卷:2000)
單位
AHC Monostable Multivibrator 2 -8mA 8mA 5 ns 24.1 ns @ 3.3 V 0.004mA Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 1.15mm 5mm