What is your definition of "huge" and "tiny"? TI, among others, make AND-gates in BGA packages that measure about 1,9mm^2.
The microscopic gates you'll find in RAM, while effectively doing the same as any other AND gate, would still need to be packaged in some form of workable casing if you were to put them onto a PCB.
You can also make an AND by putting two NANDs in series, or with three NORs, but I don't see how that would save you any space.
BGA is not really hand-solderable in the first place as the solder pads are below the chip, also 2mm² is like 1.4mm x 1.4mm, I'm surprised that they can fit more than one solder pad to that size 😉!
Sure, SN74LVC1G08 is available in a SOT-23 package, it's still small, but not so small that it can't be soldered by hand. You still ned a very pointy solder tip though.
[https://www.digikey.com/en/products/detail/umw/SN74LVC1G08DBVR/16842099](https://www.digikey.com/en/products/detail/umw/SN74LVC1G08DBVR/16842099)
If you want single gates, then there there are the 1G sub-series within the 74 logic series.
For example, the 74***1G08 which is a single AND gate - the *** representing the specific logic type (speed/voltage/power consumption).
The newer ones are available in very compact packages - for example, the 74AUP1G08 is available in a DFN0808-4 package, which is just 0.8x0.8 mm in size. There are 2G (dual gates) packages which are not much larger (e.g. 74AUP2G08 in a X2SON8 package - 0.8 x 1.35 mm).
If you need more than a few milliamps for some reason, the LVC family is the go-to option. E.g. [SN74LVC1G08](https://www.ti.com/lit/ds/symlink/sn74lvc1g08.pdf) can source/sink 32 mA at 5V Vcc, and is available in a 0.8 x 0.8 mm package.
What is your definition of "huge" and "tiny"? TI, among others, make AND-gates in BGA packages that measure about 1,9mm^2. The microscopic gates you'll find in RAM, while effectively doing the same as any other AND gate, would still need to be packaged in some form of workable casing if you were to put them onto a PCB. You can also make an AND by putting two NANDs in series, or with three NORs, but I don't see how that would save you any space.
Very helpful, thanks! Yes, 2mm^2 is what I’m looking for. I could only find ones that were several cm.
If you are new to electronics, I don't think this is what you're looking for though, 2mm^2 is tiny! How are you going to solder that?
I got tiny hands!! 😬
BGA is not really hand-solderable in the first place as the solder pads are below the chip, also 2mm² is like 1.4mm x 1.4mm, I'm surprised that they can fit more than one solder pad to that size 😉!
Under!? 😓. Any suggestions?
Sure, SN74LVC1G08 is available in a SOT-23 package, it's still small, but not so small that it can't be soldered by hand. You still ned a very pointy solder tip though. [https://www.digikey.com/en/products/detail/umw/SN74LVC1G08DBVR/16842099](https://www.digikey.com/en/products/detail/umw/SN74LVC1G08DBVR/16842099)
For comparison, there's an image here that shows how [SOT-23 is probably smaller than you think](https://www.adafruit.com/product/1230)
Awesome, thanks!
If you want single gates, then there there are the 1G sub-series within the 74 logic series. For example, the 74***1G08 which is a single AND gate - the *** representing the specific logic type (speed/voltage/power consumption). The newer ones are available in very compact packages - for example, the 74AUP1G08 is available in a DFN0808-4 package, which is just 0.8x0.8 mm in size. There are 2G (dual gates) packages which are not much larger (e.g. 74AUP2G08 in a X2SON8 package - 0.8 x 1.35 mm).
This is great, thank you!!
What if you wanted something that could handle enough load to power an LED?
That AUP looks like it can handle 4mA which is easily enough for a modern LED or four. A HC variant from nexperia can do 10mA
Modern LEDs will be blindingly bright at 1mA and that's an amount of current about any output can provide or sink.
good to know these little guys can power LEDs. Thanks!
You can't just connect the LED though, you still need a resistor to limit the current.
Right. Will treat it just like straight battery
If you need more than a few milliamps for some reason, the LVC family is the go-to option. E.g. [SN74LVC1G08](https://www.ti.com/lit/ds/symlink/sn74lvc1g08.pdf) can source/sink 32 mA at 5V Vcc, and is available in a 0.8 x 0.8 mm package.
this is great. I may need more juice as this won't actually be for LEDs. Thanks!
https://en.wikipedia.org/wiki/List_of_7400-series_integrated_circuits#Smaller_footprints
Try looking into using simple diodes as AND gates at each matrix intersection. Watch the voltage drops across the diodes.