DS1345W-150

The DS1345W-150 3.3V 1024K Nonvolatile SRAM is a 1,048,576bit, fully static, nonvolatile SRAM organized as 131,072 words by eight bits. Each NV SRAM has a selfcontained lithium energy source and control circuitry which constantly monitors VCC for an outoftolerance condition.

DS1345W-150 has ten features. (1)10 years minimum data retention in the absence of external power. (2)Data is automatically protected during power loss. (3)Power supply monitor resets processor when Vcc power loss occurs and holds processor in reset during Vcc rampup. (3)Battery monitor checks remaining capacity daily. (4)Read and write access times as fast as 150ns. (5)Unlimited write cycle endurance. (6)Typical standby current 50mA. (7)Upgrade for 128Kx8 SRAM, EEPROM or flash. (8)Lithium battery is electrically disconnected to retain freshness until power is applied for the first time. (9)Optional industrial temperature range of -40°C to +85°C, designated IND. Those are all the main features.

Some absolute maximum ratings of DS1345W-150 have been concluded as follow. (1)Its voltage on any pin relative to ground would be from -0.3V to +4.6V. (2)Its operating temperature range would be from 0°C to 70°C and -40°C to +85°C for IND parts. (3)Its storage temperature range would be from -40°C to +70°C and -40°C to +85°C for IND parts. (4)Its soldering temperature would be 260°C for 10 seconds. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some DC characteristics of DS1345W-150 are concluded as follow. (1)Its input leakage current would be min -1.0uA and max +1.0uA. (2)Its I/O leakage current would be min -1.0uA and max +1.0uA. (3)Its output current at 2.2V would be min -1.0mA. (4)Its output current at 0.4V would be min 2.0mA. (5)Its standby current CE=2.2V would be typ 50uA and max 250uA. (6)Its standby current CE=Vcc-0.2V would be typ 30uA and max 150uA. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!