Note The ”Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaran- teed The device should not be operated at. µA. VCC = MAX, VIN = V. IIH. Input HIGH Current. mA. VCC = MAX, VIN = V. IIL. Input LOW Current. – mA. VCC = MAX, VIN = V. IOS. Part Number: 74LS00, Maunfacturer: National Semiconductor, Part Family: 74, File type: PDF, Document: Datasheet – semiconductor.

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With these three cases we have realized the truth table for chip NAND gate.

The circuit includes an auto ranging as well as reset switch and produces very accurate and stable readings. So 74LS00 can be used in high frequency systems. The internal connection of four gates is shown below.

Both transistors will be ON and voltage across both of them will be zero. We can use all four gates this way tosatisfy our needs.

So dtasheet can make 74ls00 a four NOT gate chip if necessary. In the case when any one input is HIGH: Submitted by admin on 3 April So the total supply voltage appears across the transistors Q1 and Q2. With that the entire supply voltage appears across the transistor which is in OFF state. The description for each pin is given below.


Use dividers to build a counter.

74LS Datasheets

Also each gate has two inputs. It’s small, power efficient, yet customizable through onboard 2 x 7 perfboard that can be used for connecting various sensors and connectors.

It can be connected to any type of stereo audio source such as iPod, Computer, Laptop, CD Player, Walkman, Television, Satellite Receiver, Tape Deck or other stereo system to transmit stereo sound with excellent clarity throughout your home, office, yard or camp ground.

It also analyzes transistor’s characteristics such as voltage and gain. This LC Meter allows datasyeet measure incredibly small inductances making it perfect tool for making all types of RF coils and inductors. TL — Programmable Reference Voltage. With that both inputs of the gate will be LOW. It is really popular and is available everywhere. Here are a few examples where it is used.

The meter is a perfect addition to any power supply, battery chargers and other electronic projects where voltage and current must be monitored. The output waveforms can be both amplitude and frequency modulated.


After verifying the cases, you can tell that we have satisfied the above truth table. This chip has less transition times which are needed for high speed applications. Headphone amplifier is small enough to fit in Altoids tin box, and thanks to low power consumption may be supplied from a single dataseet battery.

Even at this case output will be HIGH according to the truth table. Where high speed NAND operation is necessary.

When both inputs are HIGH: There are many reasons of using 74LS00 in electronic circuits. Use flip-flops to build a divider.

74LS00 Datasheet PDF

When you want logic inverter. It is a very useful bench test equipment for testing and finding out the frequency of various devices with unknown frequency such as oscillators, radio receivers, transmitters, function generators, crystals, etc. Here we have connected two inputs to two buttons and output is connected to a LED. Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden underneath IC socket.

Now let datasheer consider a simple application circuit of daatasheet chip NAND gate.