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.

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The 0V-reading tells you that you successfully disconnected the battery. It sets too fast!

DS Datasheet Dallas Semiconducotr pdf data sheet FREE from

These are intended for short-term use with strong charge and discharge intervals – not for long-term storage with a comparatively small discharge rate.

Go with the hot glue. 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. You can see the result here sorry, the text is in french: Now the battery is dead, configuration is lost after relatively short time again and you get error-codes constantly.

Should work like a charm. It won’t do it no good and may result datashret early death of that part due to excessive internal heating. Curiosity killed that cat. I could not have gotten my Compaq DeskPro e back to clock life back without you! William Walsh did the DS-Rework to get an external battery to it as well.


Even its successor DS is pretty hard to get and darn expensive. I soldered a 22 solid wire to each of the battery holder pins, then glued the holder to the DS case using model airplane plastic cement. My old computer has been out of action for months, but this week I got it going again by following the instructions on your webpage “Reworking the DS RTC chip”.

DS datasheet & applicatoin notes – Datasheet Archive

Then circumstances kept me from working with it until now Care for the polarity! After the dust cleared Can you imagine my amazement and relief when I discovered your web site describing the DS rework process. Datashert just want to tell you that I succesfully used your DS rework How-to. Don’t ever solder directly on a coin-style Li-Cell.

For anyone who attempts this mod Worked like a charm and would like to thank you and I am very grateful I stumbled on your web site. The daily self-discharge rate on some rechargeables is higher than the current taken by the RTC. Have a look at the graphics below. Attached the two wires to the exposed pins and put the new lithium cell in the holder. Without that webpage, I would never have thought of repairing it like dxtasheet Most likely you won’t get a wire soldered properly to it.

A really new, fresh and unused chip is hard to get.

At that point you wish you could add an external battery. All described modifictions apply to this chip as well.


I appreciate it greatly. Thank you very much for putting this mod on your web site. Soldered and used a CR battery with holder on top of the 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.

DS1287 – DS1287 Real Time Clock Datasheet

Here Best Regards Emmanuel. Possible Results Reworked chip inside a Mod. The only things you need to do is: On January, 7th, Emmanuel Da Piedade emmanuel. There are no provisions for one. If you have a multimeter test the voltage on pins 16 and 20 before and after. Note the battery holder! You did a great job! I discovered that the RTC chip was dead.

A couple weeks ago when I dz1287 got around to hooking it up Incidentally, my computer is an Compaq N, which seems to date from about Don’t use rechargeable batteries. So you have my thanks and gratitude for putting that idea on the web. I used a medium sized flat file Howe dougnflo [at] comcast [dot] net Kalamazoo, Michigan, U. The case is usually pretty much “solder-resistive” because of the anti-corrosion plating.

On March, 23rd, Chris xrisl [at] yahoo. It works like a champ!

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