Vaizdas:7400.jpg

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7400.jpg (434 × 536 pixel, file size: 29 KiB, MIME type: image/jpeg)

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The view and element placement of the popular chip 7400. The chip contains four logical elements AND-NOT (NAND). The two additional contacts supply power (+5 V) and connect the ground.

The former Soviet Union manufactured the analog K155ЛA3, where even contacts were placed identically (the voltage supply was also + 5 V, so at least in some cases the chips were replaceable). It was a very popular chip, widely used by amateurs.

Literature

Used GFDL images from Commons

  • Image:TI SN7400N.jpg
  • Image:7400 vs 4011.png

Composed by Audrius Meskauskas.


GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License".

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