U637H256 - CapStore 32K x 8 nvSRAM
The U637H256 has two separate modes of operation: SRAM mode and nonvolatile mode.
In SRAM mode, the memory operates as an ordinary static RAM.
In nonvolatile operation, data is transferred in parallel from SRAM to EEPROM or from EEPROM to SRAM.
In this mode SRAM functions are disabled.
The U637H256
U637H256 Features
* High-performance CMOS nonvolatile static RAM 32768 x 8 bits 25 ns Access Time 10 ns Output Enable Access Time ICC = 15 mA typ. at 200 ns Cycle Time Unlimited Read and Write Cycles to SRAM Automatic STORE to EEPROM on Power Down using charge stored in an integrated capacitor Software in
