Maxim Integrated DS1345Y
The DS1345Y provides full functional capability for VCC greater than 4.5V and write protects by 4.25V. The nonvolatile static RAMs constantly monitor VCC.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 70ns
● Unlimited write cycle endurance
● Typical standby current 50µA
● 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
● Full ±10% VCC operating range (DS1345Y) or optional ±5% VCC operating range (DS1345AB)
● Optional industrial temperature range of -40°C to +85°C, designated IND
● PowerCap Module (PCM) package - Directly surface-mountable module - Replaceable snap-on PowerCap provides lithium backup battery - Standardized pinout for all nonvolatile (NV) SRAM products - Detachment feature on PowerCap allows easy removal using a regular screwdriver DS1345Y/AB 102...