The really great one from that series to keep on hand is the '1G98. They call it a 'universal gate' - it can be practically any 2-input logic function and fits in the same footprint as the '1G08. Also, all the inputs are Schmitt triggered - so they have good noise immunity. If you're doing a system that has to fit on a board the size of a postage stamp, and need just one more gate for something, these little packages are just the thing.
Yes! It takes some thinking to figure out what it's doing in-circuit if you didn't design the circuit, but they're very handy to minimize unique-part-count.
I've seen some schematics with that lone gate way over on one side of the board, the other 3 gates on the package marked NC. With surface mount I can see the utility of a single gate.
Level shifting and protection by buffering an input of a FPGA, only needed one for a single SpO2 sensor serial port accessible by the customer. There was also diodes to the rails for static protection.
I have definitely used parts like this in products. If it's a physically small product without many parts sometimes these single gates provide a good solution.
Gating a fast clock signal? If it says its max propagation delay is 1.6ns, theoretically that means it could get up to ~500Mhz switching frequency? Would be interesting to test
Single gates are extremely useful - sometimes you need a control line to something controlled by something else, and instead of routing that something else to a GPIO line and doing it in software, you can do it with a single gate and hardware. You might do it to write-protect flash - rather than rely on software to not write to flash, you might disable the control signal. Also been used to copy code to static RAM and then write protect it, so you use a gate to block the control signal. Sure you can probably do it in a microcontroller, but hey, sometimes it's just easier if you need a random gate to just do it there.
Is the a single Nand Gate Schmitt trigger SMD device?? That would be great for making a very small low part count oscillator circuit. I could use the hell out of that.
Sometimes you design a system that needs a security cutoff or a failsafe and you can't rely on software to do it (as then the software needs to be developed under strict ISO guidelines and so on) which is when you may end up needing a few tiny gates.
I must be getting old. My first thoughts were: Zarquan! Kids these days (sigh) apparently have not heard of RTL/DTL. Three transistors and five resistors could get that done. Then I wen't... Oh, bean counters [the Qi vampires of EE]. Yea. It would be much easier to get that chip past the bean counters than 8 other components. I do see they make a 3 input NOR (74auc2g02) gate version for those engineers working on their own version of the Apollo AGC.
Everyone loves chip of the day. But it's hard to get excited about an AND gate. And the video is mistitled, claiming to feature the equally boring NAND gate. We know you have better stuff in your garage!
Well, when you think about where to use it, all your designs seem to change. This is great. Thanks.
I use them for high speed voltage level conversion. The HCT variant is perfect for driving 5 volt WS2812 serial LEDs from 3.3v processors
The really great one from that series to keep on hand is the '1G98. They call it a 'universal gate' - it can be practically any 2-input logic function and fits in the same footprint as the '1G08. Also, all the inputs are Schmitt triggered - so they have good noise immunity.
If you're doing a system that has to fit on a board the size of a postage stamp, and need just one more gate for something, these little packages are just the thing.
Yes! It takes some thinking to figure out what it's doing in-circuit if you didn't design the circuit, but they're very handy to minimize unique-part-count.
Cool part
Sir, Thank you very much for all your precious electronic tutorials !👏
The output of an AND-GATE connected to a microcrontroller input can save a lot of computing power.
I've seen some schematics with that lone gate way over on one side of the board, the other 3 gates on the package marked NC. With surface mount I can see the utility of a single gate.
We are populating/reflowing PCBs. Those 1G devices are one of, if not THE most used active components we handle right after Schottky diodes.
Level shifting and protection by buffering an input of a FPGA, only needed one for a single SpO2 sensor serial port accessible by the customer. There was also diodes to the rails for static protection.
Who is the 'one guy'
I have definitely used parts like this in products. If it's a physically small product without many parts sometimes these single gates provide a good solution.
A single gate, instead of a £10 micro which requires 6000 lines of code and 3 years training to do the same thing, yes please.
A nice family of chips, I like it how you can power them with a single battery.
Gating a fast clock signal?
If it says its max propagation delay is 1.6ns, theoretically that means it could get up to ~500Mhz switching frequency? Would be interesting to test
Single gates are extremely useful - sometimes you need a control line to something controlled by something else, and instead of routing that something else to a GPIO line and doing it in software, you can do it with a single gate and hardware. You might do it to write-protect flash - rather than rely on software to not write to flash, you might disable the control signal. Also been used to copy code to static RAM and then write protect it, so you use a gate to block the control signal. Sure you can probably do it in a microcontroller, but hey, sometimes it's just easier if you need a random gate to just do it there.
Is the a single Nand Gate Schmitt trigger SMD device?? That would be great for making a very small low part count oscillator circuit. I could use the hell out of that.
I wonder if this mostly gets used as a level converter for 1.8V logic, with a free AND gate along the ride?
Looking forward SN74AUC1G32 chip of the day.
Sometimes you design a system that needs a security cutoff or a failsafe and you can't rely on software to do it (as then the software needs to be developed under strict ISO guidelines and so on) which is when you may end up needing a few tiny gates.
you would need a 1 and gate to make a tablet: enterprise
I need logical gates beacuse of their ns propagation delay vs Higher in MCU🎉
The smsip debut. Make a circuit using several. Bonus: The smsip card displays the chip of the day perfectly for the camera.
What did you do, buy one of every sot-23 device Digikey had in stock?
One gate? HC1G14 with shorted output to input and fed from 10k ... cheapest HF vco ( current starved oscillator )
What frequency ? 1G ?
Ha! “Except of one guy” and now they are famous.
Be more interesting if it were a nand gate. You can make any boolean logic with enough of them.
It would be interesting to know the sales numbers on that chip. Oh, we sold about 30 last year. And most of them went to this IMSAIGuy.
These tiny single gates are in almost every product. The sales are probably better than most things.
I must be getting old. My first thoughts were: Zarquan! Kids these days (sigh) apparently have not heard of RTL/DTL. Three transistors and five resistors could get that done. Then I wen't... Oh, bean counters [the Qi vampires of EE]. Yea. It would be much easier to get that chip past the bean counters than 8 other components. I do see they make a 3 input NOR (74auc2g02) gate version for those engineers working on their own version of the Apollo AGC.
I've got a Heathkit IB-1103 frequency counter. The front-end on that is all Motorola ECL chips.
I don't get it. If you only need 1 AND gate why wouldn't you just use a couple diodes and an appropriate sized resistor.
Package count, for one thing. And the diode logic is likely to be slow- the pullup resistor has to charge whatever stray capacitance is on the line.
Everyone loves chip of the day. But it's hard to get excited about an AND gate. And the video is mistitled, claiming to feature the equally boring NAND gate. We know you have better stuff in your garage!
I prefer audio chips you know lm386,lm324,ne5532,jrc4558
So no logic inversion poss😮
Kinda lost all respect when you don’t know the difference between a NAND gate and an AND gate.
wow, just a typo, but you can leave if you want to.
Found the "one guy".
What a pointless IC. One gate and stupidly low voltage and current.
I can almost guarantee that there's one of these (or similar single LV gate) somewhere in your phone or tablet.
You're out of touch with modern devices, then. These things are EVERYWHERE. Your TV, phone, etc all have them.
@@humidbeing I'm very out of touch. My phone is a 2005 Nokia and my TV is a 2007 Sony. LOL
The most modern tech I own is an X-Box 360.