hm3-65728ak-5 Replacement

troxel

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Not sure what hm3-65728ak-5 replacment would be. Is it just a 6116?

Thanks again.
 
Not exactly any old 6116.

For one thing, it's CMOS. That means that it may be in a battery (or capcitor) powered situation, for saving settings or high scores. If so, it'll need to be replaced with a CMOS RAM, because they use very little power.

According to the datasheet, that PN is 300mils wide. 6116s are often 600 mils. You'll want to make sure the replacement will fit (unless the PCB is designed to allow either 300 or 600 mil devices.)

Finally, that's a high speed RAM. Access time of 35ns. Few 6116s are that fast. Not sure if it really HAS to be that fast for the application, but better safe than sorry; find a 35ns (or faster) RAM.
 
Looks like a couple candidates for subs include CY7C199-35PC and IDT6116A25TP. Ed at GPE has both, and Jameco has the former.

I may be mistaken. It's worth a second opinion, and independent datasheet review. I didn't really study the things closely, but those are worth looking into further.
 
You can find 2018, cxk-5814, and cy7c-128 RAMs in that speed.

I have some of each... and some IDT 6116 SRAMs in that speed too.
 
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