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Compatible P/N:
74LS76 74LS76N SN74LS76 SN74LS76N SN74LS76AN HD74LS76P HD74LS76AP DM74LS76N
Description:
Condition: 100% Brand New And High Quality
Material: Electrical Components
Color: See Pictures
Encapsulation: DIP-16
Dual JK Flip-Flop With Set And Clear
Supply Voltage: 4.75V~5.25V
Output Current -High: -0.4mA
Output Current -Low: 8.0mA
Operating Temperature: 0 °C~+70 °C
Size: 19mm x 8.6mm x 7.2mm
Quantity: 20Pcs
NOTE: Kindly compare your original item with the photos provided for the listing to make sure that you are purchasing the correct part. we don't provide technical assistance please make sure you are familiar with the product before purchasing. apologize in advance.
Dr. Tim Frank
Reviewed in the United States on January 3, 2022
I am a professor teaching a Digital Design class and these 74LS76 chips were purchased for our hardware labs. For properly functioning J-K Flip-Flops, both Q and Q' should only change on the falling edge of an input clock pulse and should never equal to each other. However, for these chips, the Q' output would change on the rising edge of the clock pulse, while Q toggled on the falling edge of the clock pulse. Thus, during the width of the clock pulse, Q=Q', which should never be the case. For some applications, the issue of Q=Q' during the width of the clock pulse may not affect the operation of the circuit; however, that is not the case for some of the synchronous counters our students build. Thus, this cause a lot of problems for our students before I used an oscilloscope to diagnose the problem with these chips.
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