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Looking for some sockets SOIC, SSOP, TSSOP.... — Parallax Forums

Looking for some sockets SOIC, SSOP, TSSOP....

TumbleweedTumbleweed Posts: 45
edited 2007-03-14 23:02 in General Discussion
Hi All,
I'm doing some prototyping with some surface mount chips and I would like to find a socket to hold them so I can do some testing on my development board. Once I get done I'll actually solder them to a board, but until then I want more flexibility.

Can anyone recommend a place to buy them? I'm using TSSOP-16, SSOP-28, SOIC-8 chips right now, but am certain to do other styles and would like to get an assortment.

Thanks,
Lance

Comments

  • Phil Pilgrim (PhiPi)Phil Pilgrim (PhiPi) Posts: 23,514
    edited 2007-02-28 17:51
    Your best bet, instead of sockets, would be SMD prototyping boards, like the SurfBoard line that DigiKey sells. These have pads to which you solder the surface-mount device and a single row of pins on 0.1" centers that connect to the device contacts. Once the SMD part is soldered on, the SurfBoard can be plugged into your breadboard for testing.

    -Phil
  • SteveWSteveW Posts: 246
    edited 2007-02-28 17:53
    Hi,
    If you think that sockets are going to be cheaper than your chips, I'm afraid you're going to be horribly disappointed. Last socket I bought for a SSOP ROM (for programming a batch) was just over $120.
    I see soldered prototypes in your immediate future. That, or mving to bigger packages. (SOP sockets do exist, and, I seem to recall, weren't quite as eyewatering)

    Steve
  • Mike GreenMike Green Posts: 23,101
    edited 2007-02-28 17:53
    SparkFun also has some "breakout boards" for working with surface mount parts on a breadboard.
  • T ChapT Chap Posts: 4,223
    edited 2007-02-28 18:19
    smt-adapter.com

    Post Edited (originator) : 2/28/2007 6:24:03 PM GMT
  • TumbleweedTumbleweed Posts: 45
    edited 2007-03-01 00:03
    Cool. Thanks guys.
  • NewzedNewzed Posts: 2,503
    edited 2007-03-01 00:09
    I can make SOIC adapters on my SuperMill.· One is for·an 8-pin and a 16-pin SOIC.· The other is for an 18-pin SOIC.· If you are interested you can PM me.

    Sid

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Yesterday is history, tomorrow is a mystery, and today is a gift.

    That is why they call it the present.

    Don't have VGA?
    Newzed@aol.com
    ·
  • NewzedNewzed Posts: 2,503
    edited 2007-03-02 18:10
    I have attached the layout for my SOIC 16 adapter.· The two rows of header pins are .800 apart.

    I have four adapters, all similar except for the number of header pins:

    SOIC 8· and SOIC 16 (or 2 more SOIC 8s) - 12 pins per side
    SOIC 16 - 8 pins per side
    SOIC 16 wide - 8 pins per side
    SOIC 18 - 9 pins per side

    All adapters can be plugged into a breadboard.

    Sid

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Yesterday is history, tomorrow is a mystery, and today is a gift.

    That is why they call it the present.

    Don't have VGA?
    Newzed@aol.com
    SOIC 16 Adapter.jpg
    256 x 235 - 8K
  • NewzedNewzed Posts: 2,503
    edited 2007-03-14 22:26
    I have revised the layout for the SOIC-16 adapter.· The pins are now .600 apart.· The new layout is attached.

    Sid

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Yesterday is history, tomorrow is a mystery, and today is a gift.

    That is why they call it the present.

    Don't have VGA?
    Newzed@aol.com
    SOIC 16 Adapter.jpg
    600 x 583 - 19K
  • TumbleweedTumbleweed Posts: 45
    edited 2007-03-14 22:34
    That's pretty cool.

    I'm still working out what chips to use and I'm hoping to find some regular dip layouts....If I'm stuck using the SOIC layout I'll give you a call.

    Thanks, Lance
  • NewzedNewzed Posts: 2,503
    edited 2007-03-14 23:02
    Thanks for the interest, Lance.· DIPs are getting harder and harder to find.· I also have an adapter for an 8-pin SOIC and a 16-pin SOIC (or two more 8-pins) and an SOIC-18 adapter.· Pins are .025 sq. amd will plug into a breadboard or they can be soldered to a PC board.

    Sid

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    Yesterday is history, tomorrow is a mystery, and today is a gift.

    That is why they call it the present.

    Don't have VGA?
    Newzed@aol.com
    ·
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