FM25CL64-GTR

The FM25CL64-GTR is one number of the FM25CL64 series.The FM25CL64 is a 64-kilobit nonvolatile memory employing an advanced ferroelectric process. A ferroelectric random access memory or FRAM is nonvolatile and performs reads and writes like a RAM. FM25CL64-GTR provides reliable data retention for 10 years while eliminating the complexities, overhead, and system level reliability problems caused by EEPROM and other nonvolatile memories.

Features of the FM25CL64-GTR are:(1)organized as 8,192 x 8 bits; (2)unlimited read/write cycles; (3)10 year data retention; (4)nodelay writes; (5)advanced high-reliability ferroelectric process; (6)hardware protection; (7)software protection.The versatility of FRAM technology fits into many diverse applications. The strength of higher write endurance and faster writes make FRAM superior to EEPROM in all but one-time programmable applications. The advantage is most obvious in data collection environments where writes are frequent and data must be nonvolatile.

The absolute maximum ratings of the FM25CL64-GTR can be summarized as:(1)power supply voltage with respect to VSS:-1.0 to 5.0V; (2)voltage on any pin with respect to VSS:-1.0 to 5.0V; (3)storage temperature:-55 to +125;(4)lead temperature:300.Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device.This is a stress rating only, and the functional operation of the device at these or any other conditions above those listed in the operational section of this specification is not implied. Exposure to absolute maximum ratings conditions for extended periods may affect device reliability.The FM25CL64 will power up with writes disabled.The WREN command must be issued prior to any write operation. Sending the WREN op-code will allow the user to issue subsequent op-codes for write operations. FM25CL64-GTR include writing the status register and writing the memory.There are six commands called op-codes that can be issued by the bus master to the FM25CL64. They are listed in the table below. These op-codes control the functions performed by the memory.