Part Number: 74LS00, Maunfacturer: National Semiconductor, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. Part Number: 74LS00, Maunfacturer: Motorola, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor. 74LS00 is a member of 74XXYY IC series. The 74xxyy ICs are logic gates of digital electronics. 74LS00 IC has four NAND gates. Also each.

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Hi, I need to calculate power consumed by the 74ls00 IC in my circuit. Does these parameters are for whole IC or individual Gates? Some body please help me in this regard. Thanks and Regards, Viswanath.

The figure quoted is probably for a static logic condition.

The power consumption depends on several factors, the most prominent being how fast the logic state is changing. If you look in adtasheet data sheet you should find a calculation that tells you current consumption vs.

You know what the power supply voltage is so multiply V x I to find the power consumption. Hi betwixt, Thanks for your reply. In the datasheet i did not find the plots. I have attached the schematic, can you tell how can i calculate the power consumed by the IC’s? I have calculated for U2 as follows: Should i multiply the result with 4 or this is power consumed by the IC Is this calculation Correct?

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Looking forward for the positive response.

Thanks and Regards, viswanath. To be honest I’m not absolutlely certain but the data sheet gives two ICC currents, one for each logic state so I would imagine it refers to each gate.

Add to this the input current of the ULN to get the total. With 74LS series devices, the current remains fairly constant up to a certain frequency then it starts to increase. As you are driving relays, the frequency is presumably very low so the extra speed factor can be ignored. There is more about this at: With the latch and enable tied as they are, it only works as a buffer, you could probably remove it to save power and directly drive the LS Similar Threads Power consumption in a cellphone to determine IC power consumption 1.

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74LS00 Datasheet(PDF) – Fairchild Semiconductor

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(PDF) 74LS00 Datasheet download

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