Little help finding some datasheets? - Page 1
Forum section: electronics / projects

author: Skyfox
author_rank: Regular Contributor
timestamp: January 23, 2017, 06:47:35 am
content: Hi all. It's been a while since I last posted. A friend of mine gave me a crapload of integrated circuits in plastic tubes, about 130 different kinds. (I'll make another post later about what they all are.) It took a while but I tracked down datasheets for nearly all of them, but there's a few that I've had little to no luck finding a datasheet or even any clues as to what they are no matter how much searching I've done on every datasheet website I can find. I'll attach a scan of all their markings. Here's what I have so far:Teledyne 741CP: might be an opamp similar to the Harris CA741E and National Semiconductor LM741CSynertek 2111-1: possibly a 256x4 static ram; the bottom is marked F3052-2/404ES; Synertek seems to no longer existPhilips 215CN: the bottom is marked "PHIL" so I'm assuming it's Philips; might be a phase-locked loop similar to the Exar XR215Teledyne 301CJ: might be a resistor array, high speed analog switch, or a NAND gateTeledyne 302CJ: might be a NAND gateTeledyne 351CJ: no ideaTeledyne 361CJ: a translator (?)Teledyne 380CJ: might be a decoder of some sortTeledyne 723CJ: might be an adjustable positive voltage regulator if it's similar to the Texas Instruments UA723Motorola MC1020P: might be a 3-input OR/NOR gateFairchild UC961659: no ideaNE5558V: the logo might possibly be System General; my best guess is that it's related to the 555 timerCan anyone provide some help in tracking down what these are? They all have date codes from the 70s and 80s.Thanks!

author: T3sl4co1l
author_rank: Super Contributor
timestamp: January 23, 2017, 07:24:02 am
content: Hmm, I've got a few like those Teledyne parts laying around... forget what I decided they were, if anything.Teledyne datasheets seem to be hard to come by, even of old junk like this.Tim

author: amyk
author_rank: Super Contributor
timestamp: January 23, 2017, 12:31:44 pm
content: - Yes, likely a standard 741.- Synertek'shttp://matthieu.benoit.free.fr/cross/data_sheets/2111A.pdf- PHIL is probably Philippines, where it was made. Otherwise I agree it's an XR215.A few results I found recommended looking here for the Teledyne parts:https://archive.org/details/bitsavers_ittdataBootorProductCatalog_54440015This appears to be the master reference, if anyone happens to have a copy please upload to archive.org :https://books.google.com/books/about/HiNIL_High_Noise_Immunity_Logic.html?id=xOBMHAAACAAJAlso fromhttps://books.google.com/books?id=RcUgBQAAQBAJ&pg=PR7&lpg=PR7&dq=%22high+noise+immunity+logic%22+%22300+series%22&source=bl&ots=HTrYUJuUxL&sig=J3mbWwPfRCmXnAXHNrl47bZL0SU&hl=en&sa=X&redir_esc=y(I believe the full thing can be found at some other sites)301 - dual 5-input NAND302 - quad 2-input NAND351 - couldn't find this361 - dual HINIL to DTL/TTL/RTL level translator380 - BCD to decimal decoder723 - I agree it's a 723 voltage regulatorMC1020P - MECL II quad line receiversUC961959 - could be custom gate arrayN5558V - Signetics N5558 dual op-amp.

author: Skyfox
author_rank: Regular Contributor
timestamp: January 23, 2017, 03:53:12 pm
content: Thanks for the info! That should provide some good leads to help track down some datasheets. And it's very true, the Teledyne parts are very hard to get datasheets for. Of all the parts I did find datasheets for, not one of them was a Teledyne.I missed one IC that I couldn't find any info about because it had no indicator whatsoever about the manufacturer and searching for what I assumed to be the part number turned up nothing. I'll make a second posting with that one.