7400,4000 series logic chip most useful - Page 1
Forum section: electronics / general

author: peterthenovice
author_rank: Regular Contributor
timestamp: March 17, 2013, 07:05:11 pm
content: what are the top ten most useful logic chips. I am beginner and I would like to know the basic chips i should get.

author: Thor-Arne
author_rank: Unknown
timestamp: March 17, 2013, 07:18:15 pm
content: Gates, Inverters, Buffers, some Flip-Flops, Some counters and some Shift-Registers.Probably in the 74HC series.

author: peterthenovice
author_rank: Regular Contributor
timestamp: March 17, 2013, 08:06:05 pm
content: http://www.ebay.com/itm/30-Types-74LSxx-Series-Logic-IC-Assortment-Kit-TTL-Low-Power-Schottky-Logic-IC-/271168585663?pt=LH_DefaultDomain_0&hash=item3f2thisis most likley a good deal

author: McMonster
author_rank: Frequent Contributor
timestamp: March 17, 2013, 09:23:44 pm
content: Add Schmitt triggers, analog and digital (de)multiplexers and maybe open collector gates.

author: free_electron
author_rank: Super Contributor
timestamp: March 17, 2013, 09:42:48 pm
content: entire 74v1g series.

author: c4757p
author_rank: Super Contributor
timestamp: March 17, 2013, 09:55:22 pm
content: Quote from: free_electron on March 17, 2013, 09:42:48 pmThose are awesome. It's too bad they are kind of expensive in small quantities, but they are tiny and very useful. I may have to buy myself a bunch of them.If we're not talking about near-microscopic parts, I usually stock a bunch of 74HC00 (quad NAND), 74HC14 (hex Schmitt inverter), 74HC165 (parallel-load shift reg), 74HC595 (serial-load shift reg), 74HC86 (quad XOR - surprisingly useful once you get used to them), and 74HC107 (dual J-K flip flop).

author: mark-r
author_rank: Contributor
timestamp: March 17, 2013, 10:13:59 pm
content: In the 70s and 80s it seemed every magazine project had a 4011 and 4017 in it - digital dice, combination locks, Knight Rider lights, guitar tuners, you name it! I'd get a few of them in your collection.

author: EEVblog
author_rank: Unknown
timestamp: March 17, 2013, 10:39:47 pm
content: You can make anything if you have enough NAND gates!Dave.

author: Thor-Arne
author_rank: Unknown
timestamp: March 17, 2013, 10:41:18 pm
content: Quote from: EEVblog on March 17, 2013, 10:39:47 pmSo true.

author: mark-r
author_rank: Contributor
timestamp: March 17, 2013, 10:49:36 pm
content: Quote from: EEVblog on March 17, 2013, 10:39:47 pmWasn't it Archimedes who said, "Give me a place to NAND and I will make the Earth go low if and only if all its inputs are high"?

author: c4757p
author_rank: Super Contributor
timestamp: March 17, 2013, 11:08:50 pm
content: *groan*

author: ddavidebor
author_rank: Super Contributor
timestamp: March 18, 2013, 06:12:28 am
content: Nand forever!

author: ddavidebor
author_rank: Super Contributor
timestamp: March 18, 2013, 06:14:11 am
content: Oh, and buffer, i love buffer.Expecially optoisolated one. Is lovable, you can try to kill you circuit with 70v and it survive!

author: larry42
author_rank: Regular Contributor
timestamp: March 18, 2013, 11:27:05 am
content: 4046B is nice to play with (I dont really do any digital stuff)

author: StevenB
author_rank: Contributor
timestamp: March 18, 2013, 12:42:53 pm
content: Quote from: EEVblog on March 17, 2013, 10:39:47 pmI remember one of my professors putting the quantity of NANDs needed to make anything as "a bucket".... "a bucket of NANDs". I don't know if I've ever seen them sold in that way.

author: McMonster
author_rank: Frequent Contributor
timestamp: March 20, 2013, 01:04:34 am
content: Quote from: StevenB on March 18, 2013, 12:42:53 pmI've once seen an offer online where they were selling 7400s by weight, as untested of course. I've only resisted the temptation after seeing the shipping price. They had a few dozens of kilograms loose in large boxes.