Best in 7 days
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Description
Compuerta lógica 74LS00 NANDDESCRIPCIN La 74LS00N consta de 4 compuertas NAND positivas de 2 entradas. Los dispositivos realizan la funcin booleana Y = (A B)\ o Y = A\ + B\ en lgica positiva. Con estas compuertas lgicas podemos invertir una seal o generar una lgica para activar otro circuito integrado. Tambin podemos construir una Bascula R S Asincrona con un par de compuertas, como podemos ver en el esquema adjunto. El circuito 7400 y sus variantes es uno de los mas usados en
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.1 ★★★★★
Based on 119 reviews
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Product Reviews
★★★★★ 5
Great product
I bought this SPF because it was on the EWG site. We used this for a southern carribbean cruise. I am very pleased! No sunburn but got a great tan. Easy to apply. Highly recommend!
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Works well even in water.
Was able to apply and use for hours even in water without reapplying. Usually burn but not with this. It does go on white and very thick but runs in.
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Great
Great for sensitive skin like eczema ! Used for myself and my child (1.5)
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Reviewed in the United States on May 11, 2026
★★★★★ 4
Good, not perfect
I do like that this is safer for the environment. And it goes on just fine. Not greasy or anything. If you only use a little and rub well, your skin doesn't turn a ghostly white. Does great and I never have to reapply even after being outside sweating in heat and humidity all day. BUT, for some reason this is the only sunscreen I've ever used that has left a black ring around my finger where my wedding band sits. I've used a ton of sunscreens and I'm not sure why this one does it, but it's super annoying.
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Reviewed in the United States on March 24, 2025
★★★★★ 5
Clean ingredients
I like how clean this sunscreen is. I will repurchase.
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Reviewed in the United States on June 8, 2026
