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Logic / FF/Latches / SN54LS109AJ
Datasheets
SN54LS109AJ by:
Texas Instruments
Freescale Semiconductor
Motorola Mobility LLC
Motorola Semiconductor Products
Texas Instruments
Not Found

Dual J-K Positive-Edge-Triggered Flip-Flops With Preset And Clear 16-CDIP -55 to 125

Part Details for SN54LS109AJ by Texas Instruments

Results Overview of SN54LS109AJ by Texas Instruments

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Energy and Power Systems

SN54LS109AJ Information

SN54LS109AJ by Texas Instruments is an FF/Latch.
FF/Latches are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
SN54LS109AJ Texas Instruments Dual J-K Positive-Edge-Triggered Flip-Flops With Preset And Clear 16-CDIP -55 to 125

Price & Stock for SN54LS109AJ

Part # Distributor Description Stock Price Buy
DISTI # 2156-SN54LS109AJ-ND
DigiKey 54LS109A DUAL J-K POSITIVE-EDGE- Min Qty: 26 Lead time: 1 Weeks Container: Bulk MARKETPLACE PRODUCT 137
In Stock
  • 26 $11.7600
$11.7600 Buy Now
DISTI # J56:1989_00555890
Arrow Electronics Flip Flop JK# -Type Pos-Edge 2-Element 16-Pin CDIP Tube RoHS: Not Compliant Min Qty: 25 Package Multiple: 25 Lead time: 6 Weeks Europe - 150
  • 25 $9.3560
$9.3560 Buy Now
DISTI # 86286637
Verical Flip Flop JK# -Type Pos-Edge 2-Element 16-Pin CDIP Tube RoHS: Not Compliant Min Qty: 28 Package Multiple: 1 Date Code: 0501 Americas - 109
  • 28 $13.8500
  • 100 $13.2875
  • 500 $12.7250
  • 1,000 $12.0125
$12.0125 / $13.8500 Buy Now
Bristol Electronics   42
RFQ
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 123
  • 1 $13.8000
  • 55 $8.6250
  • 117 $8.2800
$8.2800 / $13.8000 Buy Now
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 87
  • 1 $15.7500
  • 19 $12.9500
  • 78 $12.2500
$12.2500 / $15.7500 Buy Now
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 63
  • 1 $13.1550
  • 26 $8.5508
  • 59 $7.8930
$7.8930 / $13.1550 Buy Now
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 56
  • 1 $9.8838
  • 11 $6.5892
  • 39 $6.0950
$6.0950 / $9.8838 Buy Now
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 33
  • 1 $14.7994
  • 6 $13.1550
  • 20 $12.1684
$12.1684 / $14.7994 Buy Now
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 20
  • 1 $12.3000
  • 3 $9.0200
  • 9 $8.2000
$8.2000 / $12.3000 Buy Now
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 18
  • 1 $14.7994
  • 3 $13.8128
  • 6 $13.1550
$13.1550 / $14.7994 Buy Now
Quest Components J-KBAR FLIP-FLOP, LS SERIES, 2-FUNC, POSITIVE EDGE TRIGGERED, 2-BIT, COMPLEMENTARY OUTPUT, TTL, CDIP... 16 more 7
  • 1 $10.7100
  • 2 $7.1400
  • 5 $5.3550
$5.3550 / $10.7100 Buy Now
Rochester Electronics 54LS109A Dual J-K Positive-Edge-Triggered Flip-Flops With Preset And Clear RoHS: Not Compliant Status: Active Min Qty: 1 137
  • 1 $11.3100
  • 25 $11.0800
  • 100 $10.6300
  • 500 $10.1800
  • 1,000 $9.6100
$9.6100 / $11.3100 Buy Now
Ameya Holding Limited   966
RFQ
ComSIT USA Electronic Component RoHS: Not Compliant Stock DE - 0
Stock ES - 15
Stock US - 0
Stock MX - 0
Stock CN - 0
Stock HK - 0
RFQ

Part Details for SN54LS109AJ

SN54LS109AJ CAD Models

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SN54LS109AJ Part Data Attributes

Parametric Data
SN54LS109AJ Texas Instruments
Buy Now Datasheet
Compare Parts:
SN54LS109AJ Texas Instruments Dual J-K Positive-Edge-Triggered Flip-Flops With Preset And Clear 16-CDIP -55 to 125
Select a part to compare:
Pbfree Code Yes
Rohs Code No
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code DIP
Pin Count 16
Reach Compliance Code not_compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Additional Feature INVERTED K INPUT
Family LS
JESD-30 Code R-GDIP-T16
JESD-609 Code e0
Length 19.56 mm
Load Capacitance (CL) 15 pF
Logic IC Type J-KBAR FLIP-FLOP
Max Frequency@Nom-Sup 25000000 Hz
Max I(ol) 0.0004 A
Number of Bits 2
Number of Functions 2
Number of Terminals 16
Operating Temperature-Max 125 °C
Operating Temperature-Min -55 °C
Output Polarity COMPLEMENTARY
Package Body Material CERAMIC, GLASS-SEALED
Package Code DIP
Package Equivalence Code DIP16,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Packing Method TUBE
Power Supply Current-Max (ICC) 15 mA
Prop. Delay@Nom-Sup 35 ns
Propagation Delay (tpd) 40 ns
Qualification Status Not Qualified
Schmitt Trigger NO
Seated Height-Max 5.08 mm
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 4.5 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount NO
Technology TTL
Temperature Grade MILITARY
Terminal Finish Tin/Lead (Sn/Pb)
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Trigger Type POSITIVE EDGE
Width 7.62 mm
fmax-Min 30 MHz

Alternate Parts for SN54LS109AJ

This table gives cross-reference parts and alternative options found for SN54LS109AJ. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN54LS109AJ, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
DM54LS109AJ Fairchild Semiconductor Corporation Check for Price J-Kbar Flip-Flop, LS Series, 2-Func, Positive Edge Triggered, 2-Bit, Complementary Output, TTL, CDIP16, CERAMIC, DIP-16 SN54LS109AJ vs DM54LS109AJ

SN54LS109AJ Related Parts

SN54LS109AJ Frequently Asked Questions (FAQ)

  • The recommended operating voltage range for the SN54LS109AJ is 4.75V to 5.25V, as specified in the datasheet. However, it's recommended to operate the device at a stable 5V supply to ensure reliable operation.

  • The propagation delay of the SN54LS109AJ is typically around 10-15 ns. To handle this, ensure that your system design takes into account the delay and allows for sufficient setup and hold times for the input signals.

  • No, the SN54LS109AJ is not designed to operate at 3.3V. It's a 5V device, and operating it at 3.3V may result in unreliable operation or damage to the device.

  • The SN54LS109AJ has open-collector outputs, which require external pull-up resistors to ensure proper operation. The recommended pull-up resistor value is typically in the range of 1kΩ to 4.7kΩ, depending on the system requirements.

  • Yes, the SN54LS109AJ is designed to be compatible with TTL (Transistor-Transistor Logic) logic levels. It can be used in systems that operate with TTL logic levels.