Hey everyone! This might be a stupid question, but how do I know what kind of 74HC595N I have?
I need a few more and I'm seeing a few on Jameco and not sure which one to get..
im pretty sure its this one:
https://www.jameco.com/z/74HC595-Major-Brands-IC-74HC595-8-Bit-Shift-Register-Output-Latches-and-Eight-3-State-Outputs_46105.html
but just want to make sure
mine:
You have a Texas Instruments 74HC595. But I wouldn't worry too much about which manufacturer you're getting from Jameco. Any of them will be fine. I've heard that the "major brands" from Jameco can be a bit of a crap shoot, but I've yet to have any problems myself (knock on wood!).
Below is a partial listing of some of the logos used by the various manufacturers over the years.
Thanks for the help, something im also curious about is if there is a better place than Jameco to buy stuff, they add a $10 surcharge if your cart is under $20 and shipping is quite expensive..
if I wanna buy 10 more shift registers its about $20 on Jameco with shipping, tax and such... I see why radioshack was such a big loss (im new to electronics).
Try this LIST OF DISTRIBUTORS.
For new designs, suggest you use these instead as they are superior TPIC6B595, open drain @150mA outputs.
Check amazon.
is there a good video as to why they are superior? I assume its too much to explain here.
TPIC chips are not superior, they are different.
Same shift register, but a different output stage.
Good to directly drive relays and LEDs, but they can't always replace a common 74HC595.
Leo..
It really depends on where you are.
Where I live, there's a couple of local places that I can drop into and get parts. If they stock it, that is. Like Radio Shack of old, they don't have the range of parts you can get from Jameco, or Mouser, or DigiKey. With the latter, if you spend $100 or more you get free shipping. But even if you don't spend that much, shipping is only $8, which is a pretty good deal these days.
One of the better deals I've seen where I am, in Canada, for shipping is the "Light Packet" shipping from BC-Robotics. It's a $2 flat rate for pretty much anything that will fit into a padded envelope. You're not going to get a roll of wire or a power supply at that rate, but ICs, resistors, capacitors, diodes and the like, you bet. And sometimes their prices are better than one of the bigger distributors; but only sometimes. Caveat emptor, as they say.
Good to know that there are different builds, thanks!!
Calgary here. 
Try Amazon.ca
As mentioned, the TPIC6B595 is open drain @150mA (sink) outputs.
Outputs are 50v max.
The 74HC595N can output ± 35mA.
Yeah, I know how to use the register (I should say im not entirely new to this I have a background in CS) was just curious what register I had because I bot an Elegoo super starter kit, but someone answered that above
What are you doing with the shift registers?
If you need more pins, also may want to consider IO expanders like the MCP23008 (8 bit I2C), MCP23017 (16 bit I2C), MCP23S08 (8 bit SPI) or MCP23S17 (16 bit SPI). Those chips feature bi-directional GPIO, internal pullup resistors and pin change interrupts.
So I was looking to expand my ports when I started looking at the shift register ill look into what your talking about! Thank you for the info!
Please note that there exist variants with slightly different pinout and behavior.
Sometimes ebay: 20 for $15 and free shipping
https://www.ebay.com/itm/391683801011
If you're in the US, check out Digikey. Unless they've changed recently, there's no surcharge for small orders, and you can select snail mail shipping for $5.
The different companies shown on the cover of the IC all get the silicon chip inside from the single company that made the chip. they just add the pin frame, attach the pin to the silicon and encapsulate the whole thing in plastic and add their logo. Oh, and test the final results.
