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| Looking for the datasheet for a IIci UK14 RTC 344S0042 chip. |
Posted by: geokov on 2023-12-15 18:39:12
Hello,
I have been looking for the datasheet for an obsolete part, the UK14 RTC 344S0042 chip from my IIci. Lots of Googling but no luck at all.
Thanks 🙂 |
Posted by: Kai Robinson on 2023-12-15 18:42:34
Here. |
Posted by: geokov on 2023-12-15 19:04:06
Here. Wow, that was fast. Thank you very much for taking the time to help. 🙂 |
Posted by: obsolete on 2023-12-15 19:23:58
Wow, only 8 pins on that 20-pin PLCC package are actually being used. Seems likely it could be replaced with one of these with a little creativity: https://github.com/pgreenland/attinyrtcmodule |
Posted by: finkmac on 2023-12-15 19:53:55
Wow, only 8 pins on that 20-pin PLCC package are actually being used. Seems likely it could be replaced with one of these with a little creativity: https://github.com/pgreenland/attinyrtcmodule Correct. These RTCs are basically identical save for the package and number of pins. |
Posted by: Phipli on 2023-12-16 01:52:39
Wow, only 8 pins on that 20-pin PLCC package are actually being used. Seems likely it could be replaced with one of these with a little creativity: https://github.com/pgreenland/attinyrtcmodule Yeah, weird. A SOIC8 package would have made more sense, unless they were planning forward compatibility for a chip that did this and more.
Here. Thanks Kai. |
Posted by: daanvdl on 2025-02-19 00:14:02
Just for archiving purposes, hereby the original datasheets for both Apple RTC IC's:
- 343S0042-A (PLCC20)
- 343-0042-B (DIP8) |
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