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That's intriguing; one might assume that a key feature of eFuse would be the ability to reset easily. But I guess it could be implemented without it
by sabareesh 2y ago
That's intriguing; one might assume that a key feature of eFuse would be the ability to reset easily. But I guess it could be implemented without it
- wmf 2y agoNo, the essence of a fuse is that it can never be reset. A circuit breaker is different.
- bri3d 2y agoThere are two kinds of thing that are both called eFuse: current-limiting devices which are almost always resettable, and one-time programmed bits which are intentionally one-time programmable (some are implemented as physical fuses which are blown by overcurrent, others are implemented using various other types of write-once nonvolatile memory, and some bad ones are implemented by making normal flash pretend to be write-once using firmware-level protections). Professionally I usually see OTP referred to as "fuses," "OTP," "straps," or "chicken bits," with the specific word "eFuse" reserved for the current-limiting device. But in popular media the trend seems the opposite.
- ChrisClark 2y agoWhy would that be the assumption? An eFuse is a literal trace that gets burnt up, you can't connect it back again.