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M28W640HCB70N6E M28W640HC TSOP48 64Mbit 3V NOR 闪存芯片 原装
丝印M28W640HCB70ZB6F M28W640HCB70ZB6E M28W640HC-B70ZB6
贴插A54SX08A-FPQ208-M28W640FSB70ZA6-HC68HC908JB8ADW-N