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The CAT33C704 is a 4K-bit Serial E2PROM that safeguards stored data from unauthorized access by use of a user selectable (1 to 8 byte) access code and a movable memory pointer. Two operating modes provide unprotected and password-protected operation allowing the user to configure the device as anything from a ROM to a fully protected no-access memory. The CAT33C704 uses a unique serial-byte synchronous communication protocol and has a Sequential Read feature where data can be sequentially clocked out of the memory array. The device is available in 8-pin DIP or 16-pin SOIC packages.
CAT33C704 Maximum Ratings
Temperature Under Bias ................. –55°C to +125°C Storage Temperature ....................... –65°C to +150°C Voltage on Any Pin with Respect to Ground(1) ............... –2.0V to +VCC + 2.0V VCC with Respect to Ground ............... –2.0V to +7.0V Package Power Dissipation Capability (Ta = 25°C) ................................... 1.0W Lead Soldering Temperature (10 secs) ................ 300°C Output Short Circuit Current(2) ............................ 100mA
*COMMENT Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions outside of those listed in the operational sections of this specification is not implied. Exposure to any absolute maximum rating for extended periods may affect device performance and reliability.
CAT33C704 Features
■Single 3V Supply ■Password READ/WRITE Protection: 1 to 8 Bytes ■Memory Pointer WRITE Protection ■Sequential READ Operation ■256 x16 or 512 x 8 Selectable Serial Memory ■High Speed Synchronous Protocol ■Operating Frequency: DC–1MHz ■Low Power Consumption: Active: 3 mA Standby: 250 μA ■100,000 Program/Erase Cycles ■100 Year Data Retention ■Commercial, Industrial and Automotive Temperature Ranges