Product data sheet. 1. General description. The 74HC03; 74HCTO3 is a quad 2- input NAND gate with open-drain outputs. Inputs include clamp diodes that. 74HC03 Logic Gates are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 74HC03 Logic Gates. Datasheet, 3, In Stock. 74HC03 datasheet, 74HC03 circuit, 74HC03 data sheet: PHILIPS – Quad 2-input NAND gate,alldatasheet, datasheet, Datasheet search site for Electronic.

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The poor photo of your breadboard is not very helpful. Sign up using Email and Password. You will need to add a pull-up resistor to see the output go high. It’s a NAND gate. The pullup resistor goes from the NAND gate output pin to the power supply voltage.

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74HC/HCT03 Quad 2-input NAND Gate

This is what the internal circuit looks like dahasheet the 74HC03 from the datasheet. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated 74ch03 of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. Also, please give us a proper schematic. Thanks for you answer, and i do know that the picture is silly, i just dunno how to make schematic. Sign up or log in Sign up using Google.

Spehro Pefhany k 4 I migth be stupid, but I can’t really figure this out.

By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. I have connected the pins to 10k resistors to ground, so they can be 0 if vatasheet power is on. So just to be clear, we agree that if both inputs are 1, the output will be 0.

The NAND gates in this chip can only pull the output low, so you need something else to pull the output high assuming that you want to see it go high. To drive an LED, you need to do something like this: I have recently bought this IC: You say pullup resistor, do i have to connect it from pin 14 or? I’m using a breadboard as you can see beolow, and no matter what I do, it wont work.


74HC03 Datasheet PDF Philips Electronics –

And a LED to pin 3. Home Questions Tags Users Unanswered. Sign up using Facebook. Post as a guest Name. Joe Hass 7, 1 19 The 74HCT03 has open-drain outputs.

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The funny thing is that whenever I disconnect the wire that goes from pin 7 to ground, the LED starts to light. This should mean that the IC is ON. This chip just won’t work for me. I then connect the wires to pin datqsheet and 2. Email Required, but never shown.