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 pullup resistor goes from the NAND gate output pin to the power supply voltage. To drive an LED, you need to do something like this: This chip just won’t work for me.
Thanks for you answer, and i do know that the picture is silly, i just dunno how to make schematic. 74h03 funny thing is that whenever I disconnect the wire that goes from pin 7 to 74hv03, the LED starts to light. It’s a NAND gate. You say pullup resistor, do i have to connect it from pin 14 or?
Home Questions Tags Users Unanswered. The NAND gates in this chip can only pull the output low, so you need something else to pull the output high assuming that 74gc03 want to see it go high. Joe Hass 7, 1 19 Spehro Pefhany k 4 I’m using a breadboard as you can see beolow, and no matter what I do, it wont work.
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The 74HCT03 has open-drain outputs. The poor photo of your breadboard is not very helpful. This should mean that the IC is ON. This is what the internal circuit looks like on the 74HC03 from the datasheet. Post as a guest Name.
I have recently bought this IC: Also, please give vatasheet a proper schematic. Sign up using Facebook. Email Required, but never shown. Sign up using Email and Password.
74HC03 Datasheet, PDF – Qdatasheet
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So just to be clear, we agree that if both inputs are 1, the output will be 0. And a LED to pin 3.