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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At that point you wish you could add an external battery. On January, 7th, Emmanuel Da Piedade emmanuel. It works like a champ! Don’t ever solder directly on a coin-style Li-Cell. Incidentally, my computer is an Compaq N, which seems to date from about 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.

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

It sets too fast! Can you imagine my amazement and relief when I discovered your web site describing the DS rework process. Possible Results Reworked chip inside a Mod.

I could not have gotten my Compaq DeskPro e back to clock life back without datasgeet Care for the polarity!

DS Datasheet, PDF – Alldatasheet

Howe dougnflo [at] comcast [dot] net Kalamazoo, Michigan, U. Curiosity killed that cat. Then circumstances kept me from working with it until now I appreciate it greatly. Then the battery and xtal are placed atop of the chip, dataeheet to the pins and everything is covered with a pretty rigid protective compound. These are intended for short-term use with strong charge and discharge intervals – not for long-term storage with a comparatively small discharge rate.


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

I used an iron file that was about the daatasheet 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. A couple weeks ago when I finally got around to hooking it up 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”. I just want to tell you that I succesfully used your DS rework How-to.

DS1287 – DS1287 Real Time Clock Datasheet

So you have my thanks and gratitude for putting that idea on the web. If you have a multimeter test the voltage on pins 16 and 20 before and after. Don’t use rechargeable batteries. All described modifictions apply to this chip as well.


Go with the hot glue. Worked like a charm and would like to thank you and I am very grateful I stumbled on your web site. You can see the result here sorry, the text is in french: I used a medium sized flat file There are no provisions for one.

DS Datasheet(PDF) – Dallas Semiconductor

The only things you need to do is: Note the battery holder! Should work like a charm. Have a look at the graphics below.

For anyone who attempts this mod Even its successor DS is pretty hard to get and darn expensive. Here Best Regards Emmanuel. The case is usually datssheet much “solder-resistive” because of the anti-corrosion plating.

You did a great job! I discovered that the RTC chip was dead.

(PDF) DS1287 Datasheet download

Soldered and used a CR battery with holder on top of the Without that webpage, I would never have thought of repairing it like that! The 0V-reading tells you that you successfully disconnected the battery. William Walsh did the DS-Rework to get an external battery to it as well.

Attached the two wires to the exposed pins and put the new lithium cell in the holder.