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看芯片还是国半之前的logo,那么芯片表面打印是按国半之前的打印标准,应该无法查。
52Y8或52YB都查不到对应的。
或者重新选一款可以吗?
如果是LME49990的话,它的marking应该是L49990MA。
谢谢大家,确实是49990,已经确认了一直把4当成H在找