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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Sign up or log in Sign up using Google. I have connected the pins to 10k resistors to ground, so they can be 0 if no power is on. Email Required, but never shown. 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.

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It’s a NAND gate.

74HC03 Datasheet PDF –

This should mean that the IC is ON. I migth be stupid, but I can’t really figure this out. This chip just won’t work for me. And a LED to pin 3. Sign up using Email and Password. Sign up using Facebook.

Also, please give us a proper schematic. The poor photo of your breadboard is not very helpful. So just to be clear, we agree that if both inputs are 1, the output will be 0. I then connect dataaheet wires to pin 1 and 2. The funny thing is that whenever I disconnect the wire that goes from pin 7 to ground, the LED starts to light. I’m using datasneet breadboard as you can see beolow, and no matter what I do, it wont work. The 74HCT03 has open-drain outputs. You will need to add a pull-up resistor to see the output go high.

To drive an LED, you need to do something like this: By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. The pullup resistor dqtasheet from the NAND gate output pin to the power supply voltage. I have dtasheet bought this IC: Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

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Home Questions Tags Users Datashet. This is what the internal circuit looks like on the 74HC03 from the datasheet. Spehro Pefhany k 4 Thanks for you answer, and i do know that the picture is silly, i just dunno how to make schematic.

74HC/HCT03 Quad 2-input NAND Gate

You say pullup resistor, do i have to connect it from pin 14 or? Post as a guest Name. Joe Hass 7, 1 19