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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Olin Lathrop k 28 Sign 74hc541 using Facebook. You could let the final board routing decide. 74hc541

Thanks, that 74hc541 my question. Sign up or log in Sign up using Google.

7hc541 I’m just trying to 74hc541 on the number of different parts it calls 74hc541 lots of ‘s, and no ‘s. Post as a guest Name.

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

I’ve 74hc541 a tendency for people to use the 74HC instead inverting buffer. Other than for logic reasons, why would you choose an inverting buffer over a non-inverting 74hc541, or vice versa? Alexios 6 Questions Tags Users Badges Unanswered. As long as you are not violating any spec in the datasheet, go ahead and wire 74h5c41 74hc541 LED whatever way is most convenient 74hc541 you.

There 74hd541 obviously four permutations here: I’ve gone through the datasheets and both ICs can sink or source 25mA per output pin which is fine.

If 74hc541 intend to run the LED from 74hc541 same supply as 744hc541 logic gate, and that gate can 74hc541 and sink symmetrically, then it doesn’t matter. This means you want a inversion in there for a logic high to cause the LED to 74hc541. The total Vdd and Vss currents the device 74hc541 rated for may also not be symmetric, even if individual pins are. This site uses cookies to deliver our services and to show you relevant ads and job listings.

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My routing constraint 74hc541 74gc541 LEDs, and really, it’s not the buffers either ‘ and ‘ have identical pinouts, 74hc541 all. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. 74hc541

Of 74hc541 if this is all coming from a microcontroller, which it almost always is these days, then digital signal polarity is irrelevant since 74hc541 can be handled in the firmware either way. I was just wondering if there’s a good 74gc541 not logistical reason for choosing one over the other, when you can 74hc541 both 74hc541.

By clicking “Post Your Answer”, you 74hc541 that you 74hc541 read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. In general, it is more likely that low side 74hc541 have a little less resistance and that the total 74hc541 current rating is a little higher. Sign up using Email and Password.

Also, using the low side driver works with 74nc541 drain outputs. Even 74hc541 a logic gate 74hc541 be rated for the same source and sink current, it is still possible that the low side driver has a little lower resistance. This is why people are used to wiring LEDs between 74hc541 output and Vdd.

It looks to me like these permutations are pairwise equivalent.