The DS, DS, and DS12C real-time clocks (RTCs) are designed to be direct replacements for the DS and DS Data Sheet. Subscribe. DS datasheet, DS circuit, DS data sheet: DALLAS – Real Time Clock,alldatasheet, datasheet, Datasheet search site for Electronic Components . DS Datasheet, DS PDF, DS Data sheet, DS manual, DS pdf, DS, datenblatt, Electronics DS, alldatasheet, free, datasheet.

Author: Kazrak Mezshura
Country: Benin
Language: English (Spanish)
Genre: Education
Published (Last): 15 October 2009
Pages: 446
PDF File Size: 7.25 Mb
ePub File Size: 16.98 Mb
ISBN: 446-3-14548-311-1
Downloads: 35297
Price: Free* [*Free Regsitration Required]
Uploader: Gardagami

Soldered and used a CR battery with holder on top of the Can you imagine my amazement and relief when I discovered your web site describing the DS rework process. Most likely you won’t get a wire soldered properly to it.

Dallas Semiconductor DS Series Datasheets. DSA, DS Datasheet.

Attached the two wires to the exposed pins and put the new lithium cell in the holder. A really new, fresh and unused chip datasheef hard to get. It won’t do it no good and may datsheet in early death of that part due to excessive internal heating.

Then the battery and xtal are placed atop of the chip, connected to the pins and everything is covered with a pretty rigid protective compound.


Dallas Semiconductor DS Module Battery Replacement

Howe dougnflo [at] comcast [dot] net Kalamazoo, Michigan, U. The only things you need to do is: Worked like a charm and would like to thank you and I am very grateful I stumbled on your web site. Then circumstances kept me from working with it until now So you have my thanks and gratitude for putting that idea on the web.

There are no provisions for one. Have a look at the graphics below.

DS1287 – DS1287 Real Time Clock Datasheet

If you have a multimeter test the voltage on pins 16 and 20 before and after. At that point you wish you could add an external battery. It works like a champ!

I used a medium sized flat file I appreciate it greatly. Care for the polarity! A couple weeks ago when I finally got around to hooking it up Should work like datasbeet charm. On January, 7th, Emmanuel Da Piedade emmanuel.

William Walsh did the DS-Rework to get an external battery to it as well. Note the battery holder!

You can see the result here sorry, the text is in french: The 0V-reading tells you that you successfully disconnected the battery. The daily self-discharge rate on some rechargeables is higher than the current taken by the RTC. Thank you very much for putting this mod on your web site.


I used an iron file that was about the exact width I needed and just slowly went back and forth about 50 times until I saw the metal and then used sandpaper the rest of the way. On March, 23rd, Chris xrisl [at] yahoo. These are intended for short-term use with strong charge and discharge intervals – not for long-term storage with a comparatively small discharge rate.

Possible Results Reworked chip inside a Datasneet. I could not have gotten my Compaq DeskPro e back to clock life back without you! I just want to tell you that I succesfully used your DS rework How-to.

For anyone who attempts this mod My old computer has been out vatasheet action for months, but this week I got it going again by following the instructions on your webpage “Reworking the DS RTC chip”.

The case is usually pretty much “solder-resistive” because of the anti-corrosion plating. You did a great job!