作者: Hiromi Nobukata , Ihachi Naiki , Yoshitaka Osaka
DOI:
关键词:
摘要: A nonvolatile semiconductor memory device capable of improving a reliability spare region, the data region in accordance with method use, and realizing function an additional writing as multi-level memory, IC card using same, provided storing 4-level binary data; use decoders for supplying drive voltage to region; latch circuit transferring number levels be stored stopping supply sub decoder when transfer is normally completed; completed.