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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Have a look at the graphics below.

So you have my thanks and gratitude for putting that idea on the web. 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.

DS Datasheet, PDF – Alldatasheet

Most likely you won’t get a wire soldered properly to it. A really new, fresh and unused chip is hard to get.

The 0V-reading tells you that you successfully disconnected the battery. I discovered that the RTC chip was dead. Possible Results Reworked chip inside a Mod.

Datasheets search archive of electronic components datasheets

It works like a champ! I soldered a 22 solid wire to each of the battery satasheet pins, then glued the holder to the DS case using model airplane plastic cement. It sets too fast! The only things you need to do is: 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. 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”.

DS1287 – DS1287 Real Time Clock Datasheet

Now the battery is dead, configuration is lost after relatively short time again and you get error-codes constantly. Go with the hot glue.

I used a medium sized flat file Without that webpage, I would never have thought of repairing it like that! Worked like a charm and would like to thank you and I am very grateful I stumbled on your web site. Note the battery holder!

I could not have gotten my Compaq DeskPro e back to clock life back without you! Attached the two wires to the exposed pins and put the new lithium cell in the holder. After the dust cleared Curiosity killed that cat. All described modifictions apply to this chip as well. I just want to tell you that I succesfully used your DS rework How-to.

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. It won’t do it no good and may result in early death of that part due to excessive internal heating. Should work like a charm. Thank you very much for putting this mod on your web site.


Then circumstances kept me from working with it until now On March, 23rd, Chris xrisl [at] yahoo. Care for the polarity!

Reworking the DS / DS RTC chip

A couple weeks ago when I finally got around to hooking it up For anyone who attempts this mod Can you imagine my amazement and relief when I discovered your web site describing the DS rework process. The case is usually pretty much “solder-resistive” because of the anti-corrosion plating. There ds187 no provisions for one. At that point you wish you could add an external battery. Howe dougnflo [at] comcast [dot] net Kalamazoo, Michigan, U. Don’t ever solder directly on a coin-style Li-Cell.

The daily self-discharge rate on some rechargeables is higher than the current taken by the RTC. Don’t use rechargeable batteries. Here Best Regards Emmanuel.