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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I have connected the pins to 10k resistors to ground, so they can be 0 if no power is on. Joe Hass 7, 1 19 The 74HCT03 has open-drain outputs.
Also, please give us a proper schematic. This should mean that the IC is ON.
74HC/HCT03 Quad 2-input NAND Gate
It’s a NAND gate. Sign up using Facebook. This is what the internal circuit looks like on the 74HC03 from the datasheet. And a LED to pin 3.
The funny thing is that whenever I disconnect the wire that goes from pin 7 to ground, the LED starts to light. So just to be clear, we agree that if both inputs are 1, the output will be 0. Home Questions Tags Users Unanswered. To drive an LED, you need to do something like this: I migth be stupid, but I can’t really figure this out. I have recently bought this IC: The pullup resistor goes from the NAND gate output pin to the power supply voltage.
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74HC03 datasheet & applicatoin notes – Datasheet Archive
Email Required, but never shown. You will need to add a pull-up resistor to see the output go high. You say pullup resistor, do i have to connect it from pin 14 or?
I then connect the wires to pin 1 and 2. Thanks for you answer, and i do know that the picture is silly, i just dunno how to make schematic.