Contact Memory Card Chip

M4428 is a memory card chip. It uses 0.6um CMOS EEPROM process, has 1K X 8 Bits EEPROM with write protect function and programmable security code. With its contact configuration in accordance to ISO standard 7816 (synchronous transmission), M4428 can be widely used in different types of IC memory ca This chip contains an EEPROM organized 1024 x 8 bit offering the possibility of programmable write protection for each byte.\n\nAll the memory, except for the PSC, can always be read.\n\nAll the memory is writable/erasable before the protect bit is enabled. A;

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