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C. • Balanced Propagation Delay and Transition Times. • Significant Power Reduction Compared to LSTTL. Logic ICs. • HC Types. – 2V to 6V Operation. 74HC Datasheet, 74HC Octal Buffer Datasheet, buy 74HC If you intend to run the LED from the same supply as the logic gate, and that gate can source and sink symmetrically, then it doesn’t matter.

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I’ve gone through the 74h541 and both ICs can sink or source 25mA per output pin which is fine. 74hc541 though 74hc541 logic gate may be rated for the same source and 74hc541 current, it is still possible that the low side driver has a little lower resistance.

You could let 74hc541 final board routing decide.

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By clicking “Post Your 74hc541, you acknowledge that you have read our updated terms of service 74hc51, privacy policy and 74hc541 policyand that your continued use of the website 74hc541 subject to these policies. I’ve noticed a tendency for people to use the 74HC instead inverting buffer.

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Sign up using Facebook. 774hc541 6 By 74hc541 our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policy74hc541 our Terms 74hc541 Service. My routing constraint isn’t the LEDs, and really, it’s not the buffers either ‘ and ‘ have identical pinouts, after all.

74hc541 I was just 74hc541 if there’s a good 74hc541 not logistical reason for choosing one over 74hc5411 other, when you can go both ways. If you intend to run the LED from the same supply as the logic gate, and that gate can source and sink symmetrically, then it doesn’t 74hc541.

GA – 74HC Octal Buffer And Line Driver (RCA)

I’m just trying 74hc541 save on 74hc541 number of different parts it calls for lots of ‘s, and no ‘s. Sign up using Email and Password.

Questions Tags Users Badges Unanswered. This site uses cookies to deliver our services and to show you relevant ads and job 74hc541. It 74hc541 to me like these permutations are pairwise equivalent.

Of course if this is 74hc541 coming from a 74hc541, which it 74hc541 always is these days, then digital signal polarity is irrelevant since it can be handled in the firmware either way. In general, it is more likely that low 74hc541 drivers have 74hc451 little less resistance and that the total Vss current rating is a little higher. As long as you are not violating any spec in the 74hc541, go ahead and wire up the LED whatever way is most convenient for you. 74hc514


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Olin Lathrop k 28 Thanks, that answers my 74hc541. Sign up or log in Sign up using 74hc541. Other than for logic reasons, why would you choose an inverting buffer over a non-inverting one, or vice versa?

There are obviously four permutations here: This is why people 74hc541 used to 74c541 LEDs between the output and Vdd.

Post as a guest Name. The total Vdd and Vss currents the device is rated for may also not 74hc541 symmetric, 74hc541 if individual pins are. This means 74hc541 want a inversion in there for a logic high to cause the LED 74hc541 light.

Also, using the low side driver works with open drain outputs.