DS1345W Datasheet | Dallas Semiconducotr

19-5587; Rev 10/10 .maxim-ic. 3.3V 1024k Nonvolatile SRAM with Battery Monitor Features - 10 years minimum data retention in the absence of external power - Data is automatically protected during power loss - Power supply monitor resets processor when VCC power loss occurs and holds processor in reset during VCC ramp-up - Battery monitor checks remaining capacity daily - Read and write access times of 100 ns - Unlimited write cycle endurance - Typical standby current 50 µA - Upgrade for 128k x 8 SRAM, EEPROM or Flash - Lithium battery is electrically disconnected to retain freshness until power is applied for the first time - Optional industrial temperature range of -40°C...