DS1249AB Maxim, DS1249AB Datasheet
DS1249AB
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DS1249AB Summary of contents
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... Full ± 10% V operating range (DS1249Y) CC Optional ± operating range CC (DS1249AB) Optional industrial temperature range of -40°C to +85°C, designated IND JEDEC standard 32-pin DIP package DESCRIPTION The DS1249 2048k Nonvolatile SRAMs are 2,097,152-bit, fully static, nonvolatile SRAMs organized as 262,144 words by 8 bits ...
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... CC . Should the supply voltage decay, the NV SRAMs CC to the RAM and disconnects the lithium energy source. CC exceeds 4.75 volts for the DS1249AB and 4.5 volts for the CC is first applied at a level greater than DS1249Y/AB signals are active (low) after address ...
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... DS1249Y/AB -0.3V to +6.0V 0°C to +70°C -40°C to +85°C -40°C to +85°C +260° See Note 10) A TYP MAX UNITS NOTES 5.0 5.25 V 5 ±5% for DS1249AB ±10% for DS1249Y) CC TYP MAX UNITS NOTES µA +2.0 µA +2 1.0 1.5 mA µA 100 150 85 mA 4.62 4 ...
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... WR1 t 15 WR2 t ODW t 5 OEW DH1 t DH2 DS1249Y/ ±5% for DS1249AB ±10% for DS1249Y) UNITS NOTES MAX ...
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READ CYCLE SEE NOTE 1 WRITE CYCLE 1 SEE NOTES and DS1249Y/AB ...
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WRITE CYCLE 2 SEE NOTES and 13 POWER-DOWN/POWER-UP CONDITION SEE NOTE DS1249Y/AB ...
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POWER-DOWN/POWER-UP TIMING PARAMETER V Fail Detect to and slew from slew from Valid to and Inactive Valid to End of ...
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... Cycle = 200 ns for operating current All voltages are referenced to ground ORDERING INFORMATION PART TEMP RANGE DS1249AB-70# 0°C to +70°C DS1249AB-70IND# -40°C to +85°C DS1249Y-70# 0°C to +70°C DS1249Y-70IND# -40°C to +85°C #Denotes a RoHS-compliant device that may include lead(Pb) that is exempt under the RoHS requirements. ...
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... REVISION HISTORY REVISION DATE Updated the storage information, soldering temperature, and lead temperature information in the Absolute Maximum Ratings section; 11/10 removed the -100 MIN/MAX information from the AC Electrical Characteristics table; updated the Ordering Information table (removed - 100 parts and leaded -70 parts); updated the Package Information table ...