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Home  /  Integrated Circuits (ICs)  /  Logic - Flip Flops  /  National Semiconductor 54LS109DMQB
54LS109DMQB
54LS109DMQB
Active
Logic - Flip Flops
Description:  J-K FLIP-FLOP
Manufacturer:  National Semiconductor
Datasheet:   54LS109DMQB Datasheet
History Price: Active
In Stock: 44000
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PDF Datasheet
Equivalent
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HAODE TECHNOLOGY
54LS109DMQB
45600
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$
Click and send your RFQ
Apr 21, 2026
Hard Find Electronics Ltd.
54LS109DMQB
37200
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$
Sourcing hard-to-find electronic components
Apr 20, 2026
TRICO INDUSTRIAL
54LS109DMQB
32800
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$
Rooted in Semiconductors, One-stop Chip Solutions
Apr 20, 2026
Redstar Electronic
54LS109DMQB
41200
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$
First Choice, Good Service
Apr 20, 2026
PARKIN
54LS109DMQB
39200
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$
A Great Reputation EMS Partner specializes on E-Components Procurement
Apr 20, 2026
QTreeic Electronics
54LS109DMQB
20400
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$
Your Integrated Circuit Electronic Components Supplier
Apr 20, 2026
DigiKey
54LS109DMQB
31200
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$
Click and see latest prices from Digikey Electronics
Apr 20, 2026
Anterwell
54LS109DMQB
18400
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$
The 21 years electronic components professional supplier
Apr 20, 2026
Feilifei
54LS109DMQB
12000
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$
New and original
Apr 20, 2026
One River Electronics Ltd
54LS109DMQB
10000
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$
One River: Quality components, competitive prices, fast shipping, 1-year warranty
Apr 20, 2026
54LS109DMQB Specification
Specification
Mfr Part
54LS109DMQB
Category
Logic - Flip Flops
Manufacturer
National Semiconductor
Series
54LS
Packaging
Bulk
Status
Active
Environmental Compliance
Lead Free
Radiation Hardening
No
REACH SVHC
No SVHC
RoHS
Compliant
HS Code
-
Technical Parameter
Function
Set(Preset) and Reset
Type
JK Type
Output Type
Complementary
Number of Elements
2
Number of Bits per Element
1
Clock Frequency
20 MHz
Max Propagation Delay @ V, Max CL
35ns @ 5V, 50pF
Trigger Type
Positive Edge
Current - Output High, Low
400μA, 4mA
Voltage - Supply
4.5V ~ 5.5V
Current - Quiescent (Iq)
8 mA
Input Capacitance
-
Operating Temperature
-55 ℃ ~ 125 ℃ (TA)
Mounting Type
Through Hole
Supplier Device Package
16-CDIP
Package / Case
16-CDIP (0.300", 7.62mm)
54LS109DMQB PDF Datasheet
54LS109DMQB Datasheet
Click and Download: 54LS109DMQB Datasheet
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54LS109DMQB Compare Parts
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    Customer Reviews
    4.95 out of 5.00 stars from 96 customer reviews from all over the world
    Christopher Lee
    United States
    5 stars
    2026-04-13 07:00
    Good product, they look brand new, not scraped or broken, very good quality, recommended
    Célia Marchand
    France
    5 stars
    2026-04-13 05:26
    Excellentseller very fast shipping
    Karen Martin
    United States
    5 stars
    2026-04-13 05:02
    They look great, recommended seller, I arrive very fast, thank you very much
    Olli Salo
    Finland
    5 stars
    2026-04-13 01:37
    One of the 10 checked, works, thank you!!
    João Victor
    Brazil
    5 stars
    2026-04-12 22:31
    All right Not Tested
    Samuel
    Spain
    5 stars
    2026-04-12 19:45
    Very correct and corresponds to the description. I have been born several and they are within their value
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