74HC03 DATASHEET PDF

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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It’s a NAND gate. So just to be clear, we agree that if both inputs are 1, the output will be 0. This chip just won’t work for me. I’m using a breadboard as you can see beolow, and no matter what I do, it wont work.

(PDF) 74HC03 Datasheet download

This should mean that the IC is ON. I then connect the wires to pin 1 and 2.

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And a LED to pin 3. I have connected the pins to 10k resistors to ground, so they can be 0 if no power is datasehet. The funny thing is that whenever I disconnect the wire that goes from pin 7 to ground, the LED starts to light.

I migth be stupid, but I can’t really figure this out. This is what the internal circuit looks like on the 74HC03 from the datasheet.

74HC03 데이터시트(PDF) – NXP Semiconductors

To drive an LED, you need to do something like this: The 74HCT03 has open-drain outputs. You will need to add a pull-up resistor to see the output go high. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie datashedtand that your continued use of the website is subject to these policies.

Home Questions 74hc3 Users Unanswered. I have recently bought this IC: Spehro Pefhany k 4 Also, please give us a proper schematic. The poor photo of your breadboard is not very helpful. Joe Hass 7, 1 dayasheet Thanks for you answer, and i do know that the picture is silly, i just dunno how to make schematic.

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74HC03 Datasheet, PDF – Qdatasheet

You say pullup resistor, do i have to connect it from pin 14 or? The pullup resistor goes from the NAND gate output pin to the power supply voltage. The NAND gates in this chip can only pull the output low, so you dtasheet something else to pull the output high assuming that you want to see it satasheet high. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.

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