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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This should mean that dataaheet IC is ON. I then connect the wires to pin 1 and 2. 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 on. The funny thing is that whenever I disconnect the wire that goes from pin 7 to ground, the LED starts to light.
74HC03 Datasheet PDF
I migth be stupid, but I can’t really figure this out. This is what the internal circuit looks like on the datsaheet from the datasheet.
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.
Home Questions Tags 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 19 Thanks for you answer, and i do know that the picture is silly, i just dunno how to make schematic. 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 74hc003 need something else to pull the output high assuming that you want to see it go high.
74HC03 datasheet, Pinout ,application circuits 74HC/HCT03 Quad 2-input NAND Gate