Allow alternate SD card sockets

Question

Allow alternate SD card sockets

Closed this issue 3 years ago · 7 comments

Due to the galactic parts-shortage, Digikey, Mouser, and Newark are all on backorder for the Hirose DM3D-SF SD card socket in the Rev 3 design.

If a Rev4 board is produced, adjust the footprint to allow for an alternate socket (such as the Molex 1051620001) to be used.
[It looks like the Molex could be made to fit on the same pads IFF the keep-out areas are increased and a second card-det landing is added.]

Answer 1 · 2021-11-17T20:13:38.000Z

Amphenol 114-00841-68 has the same footprint as the Hirose part. Right now Mouser has 4.813 of them in stock (Mouser part no. 523-114-00841-68).

Answer 2 · 2021-11-18T00:03:26.000Z

Who’s on first? Does this mean that there is no need for a Rev 4 board spin and I can build out one of your Rev 3 sets? Thanks, Jack From: sebsch2000 ***@***.*** Sent: Wednesday, November 17, 2021 2:14 PM To: johnwinans/2063-Z80 ***@***.***> Cc: Subscribed ***@***.***> Subject: Re: [johnwinans/2063-Z80] Allow alternate SD card sockets (Issue #3) Amphenol 114-00841-68 has the same footprint as the Hirose part. Right now Mouser has 4.813 of them in stock (Mouser part no. 523-114-00841-68). — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub<#3 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ABDRJ6S6D32O2PLY4YEP42LUMQEHZANCNFSM5HTFO74Q>. Triage notifications on the go with GitHub Mobile for iOS<https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android<https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

Answer 3 · 2021-11-18T00:28:22.000Z

Well, I built a rev 3 board this week. I ordered the parts from Mouser and Digikey. Had to replace the Hirose connector with the Amphenol one and the ICL3232CPZ (U12) with the MAX232N which is basically the same. The test programs worked as they should.

Answer 4 · 2021-11-18T00:30:37.000Z

That’s good – if you still have a spare, I’d like to buy one board + programmer set from you. Please let me know the cost and PayPal info. Thanks, Jack From: sebsch2000 ***@***.*** Sent: Wednesday, November 17, 2021 6:29 PM To: johnwinans/2063-Z80 ***@***.***> Cc: Jack Rubin ***@***.***>; Comment ***@***.***> Subject: Re: [johnwinans/2063-Z80] Allow alternate SD card sockets (Issue #3) Well, I built a rev 3 board this week. I ordered the parts from Mouser and Digikey. Had to replace the Hirose connector with the Amphenol one and the ICL3232CPZ (U12) with the MAX232N which is basically the same. The test programs worked as they should. — You are receiving this because you commented. Reply to this email directly, view it on GitHub<#3 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/ABDRJ6QQQI653HH733Y7YKDUMRCDDANCNFSM5HTFO74Q>. Triage notifications on the go with GitHub Mobile for iOS<https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android<https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>.

Answer 5 · 2021-11-18T07:32:52.000Z

How did I not find the Amphenol 114-00841-68 part???? That is fantastic!
I'll add a note marking that as an alternate and take a pass on the footprint hacking.

Answer 6 · 2021-11-26T15:53:23.000Z

Please push the rev/bom changes up to the github repository when you get a chance.
Thanks!

Answer 7 · 2021-12-01T19:40:45.000Z

There is at least one alternate that does not require a footprint modification. I am not going to leave well enough alone.