MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. The HC is an inverting buffer. 74HC datasheet, 74HC pdf, 74HC data sheet, datasheet, data sheet, pdf, Philips, inverting. 74hc Buffers & Line Drivers are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 74hc Buffers & Line Drivers.
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Thanks a lot for your help! Does it make any difference? The LED consumes little current so is not an issue. However a relay usually consumes more current and has a back-emf pulse when it is switched OFF. Do they matter for your purpose? Can i use a instead of 74HC? Dstasheet will check it for sure. However the problem is – the relay I am using is active low. This solution works when there is a single fatasheet.
So when I am active high, the led turns on. Sign up using Email and Password.
74HC540 Datasheet PDF
datashest Then you need a ULN 8 Darlington relay driver. The relay can be from 3. Means to actively drive the pin for the inactive state instead of using a separate inverter?
74HC Datasheet pdf – inverting – Philips
A link to the ULN But in this question they are suggesting to use a 74HC What are the differences between and 74HC that you can read out of the datasheet?
I am using a set of 8 relays. But the relay is off. Sign up using Facebook. I am using a led to show the status of the pin.
Wouldn’t it be an option to invert the signal already in your software? Post as a guest Name. 774hc540 for the answer. So i was thinking of using an inverter.