Re: [cosmacelf] Re: Membership board - Memory
- RickC wrote:
> I have a handful of HM6264P and HM6264LP... Can you tell me if these areIt's possible if they are 20 years old.
> the low power parts?
It's easy to test. Stick one in a solderless breadboard socket. Wire all
the address inputs, output enable, and write enable pins high. Measure
the VCC current at 5v, first with the chip select pin low, and then with
chip select pin high.
All parts will have a VCC supply current of less than 1 milliamp with
chip select high. But only the true CMOS parts will less than 1 milliamp
supply current with chip select low.
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