IZE4442

IZE4442 INTELLIGENT 256-BYTE EEPROM WITH WRITE PROTECT FUNCTION AND PROGRAMMABLE SECURITY CODE (PSC) Features 256 x 8-bit EEPROM organization Byte-wise addressing Irreversible byte-wise write protection of lowest 32 addresses (Byte 0...31) 32 x 1-bit organization of protection memory Two-wire link protocol End of processing indicated at data output Answer-to-Reset ace. to ISO standard 7816-3 Programming time 2.5 ms per byte for both erasing and writing Minimum of 104 write/erase cycles1) Data retention for minimum of ten years1) Contact configuration and serial interface in accordance with ISO standard 7816 (synchronous transmission) Additional Feature of IZE4442 Data can only be changed after entry of the correct 3-byte programmable security code (security memory) Type Ordering Code Package IZE4442 M2.2 on request Wire-Bonded Module M2.2 IZE4442 C on request Chip IZE4442 M2.2 on request Wire-Bonded Module M2.2 IZE4442 C on request Chip 1) Values are temperature dependent, for further information please refer to your sales office. Pin Configuration(top view) (Card Contacts)Pin Definitions and Functions Card Contact Symbol Function C1 VCC Supply voltage C2 RST Reset C3 CLK Clock input C4 N.C. Not connected C5 GND Ground C6 N.C. Not connected C7 I/O Bi-directional data line (open drain) C8 N.C. Not connected IZE4442 comes as a M2.2 wire-bonded module for embedding in plastic cards or as a die for customer p...