mjm316 wrote:
Thank you Rick, that was informative as I’ve never seen a Dallas Switch. If what I have is considered ICS I don’t see those listed on the buy sheet or are they listed as something else?
IC chips, no Dallas switches. $7 (atm)
Anything with a battery inside it a “Dallas Switch”
Though as above, Dallas was the largest but not only manufacturer.
These cover two things. A RTC (real time clock); the vast majority of them.
Battery backed ram. Rare then, very rare to find today. Most are so-called stackers so the memory IC is plugged into a battery package that looks like an IC with holes on the top for the memory pins. And the whole thing then plugged into the board. Just gently separate the battery level from the IC in such cases.
I don’t suggest messing with clocks. Removing the battery and case leaves you with a midgrade component. Just toss them in a battery bin somewhere for free.