4 ms·
I think the parent is being pedantic. All the literature I could find on eFuses (including the wikipedia article) either used 'blowing' to refer to permanent wr
by zaksoup 8y ago
I think the parent is being pedantic. All the literature I could find on eFuses (including the wikipedia article) either used 'blowing' to refer to permanent writing, or '"blowing"' (in scare quotes).
Whether or not that is descriptive of the physical process that's occurring, it certainly seems to be a reasonable term for anybody to use to talk about the functionality of eFuses.
- kevin_thibedeau 8y agoExcept that in many cases the "fuses" can be reset by wiping the firmware from the part and restoring it to a factory clean state.
- pjc50 8y agoThen it's not really a fuse in the normal chip sense.
- kevin_thibedeau 8y agoThe normal chip "fuses" aren't fuses anymore. They're just a section of EEPROM or flash with control circuitry altered to make them write-once only. Real fuse programming required generating high voltages and subjecting the die to high currents and localized thermal stress that modern ICs don't tolerate well.
- khedoros1 8y agoThat sounds like a flag, not an eFuse. I'd expect something called an eFuse to be some form of one-time programmable non-volatile memory.