DS1350W Maxim, DS1350W Datasheet
DS1350W
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DS1350W Summary of contents
Page 1
... Detachment feature on PowerCap allows easy removal using a regular screwdriver DESCRIPTION The DS1350W 3.3V 4096k Nonvolatile SRAM is a 4,194,304-bit, fully static, nonvolatile SRAM organized as 524,288 words by eight bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly monitors V condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption ...
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... RST during power-on transients and to allow t BATTERY MONITORING The DS1350W automatically performs periodic battery voltage monitoring on a 24-hour time interval. Such monitoring begins within t occurs. After each 24-hour period has elapsed, the battery is connected to an internal 1 MΩ test resistor for 1 second ...
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... The 34-pin PowerCap Module integrates SRAM memory and nonvolatile control into a module base along with contacts for connection to the lithium battery in the DS9034PC PowerCap. The PowerCap Module package design allows a DS1350W device to be surface-mounted without subjecting its lithium backup battery to destructive high-temperature reflow soldering. After a DS1350W module base is reflow soldered, a DS9034PC is snapped on top of the base to form a complete Nonvolatile SRAM module ...
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... CCS1 I 30 CCS2 I CCO1 V 2.8 2.9 TP SYMBOL MIN TYP I DS1350W -0.3V to +4.6V 0°C to +70°C -40°C to +85°C -55°C to +125°C +260°C +260° See Note 10) A MAX UNITS NOTES 3 0.4 V ± = 3.3V 0.3V) CC MAX UNITS NOTES +1.0 µ ...
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... 100 WR1 t 20 WR2 t ODW t 5 OEW DH1 t 20 DH2 3.3V CC UNITS NOTES MAX ns 100 100 DS1350W ± 0.3V ...
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... WRITE CYCLE 1 SEE NOTES AND 12 WRITE CYCLE 2 SEE NOTES AND DS1350W ...
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... POWER-DOWN/POWER-UP CONDITION BATTERY WARNING DETECTION SEE NOTE DS1350W ...
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... WE WE the output buffers remain in a high impedance state during this period. 9. Each DS1350W has a built-in switch that disconnects the lithium source until V the user. The expected t DR time power is first applied by the user. ...
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... RoHS status. PACKAGE TYPE PACKAGE CODE 34 PCAP going high. WE going high. CE TEMP RANGE TOLERANCE 3.3V ± 0.3V 0°C to +70°C 3.3V ± 0.3V -40°C to +85°C OUTLINE NO. PC2 SUPPLY PIN-PACKAGE 34 PCAP* 34 PCAP* LAND PATTERN NO. 21-0246 DS1350W Note — ...
Page 10
... Updated the soldering and storage information in the Absolute Maximum Ratings section, removed the unused AC timing specs in 10/10 the AC Electrical Characteristics table, updated the Ordering Information table, replaced the package outline drawing with the Package Information table DESCRIPTION DS1350W PAGES CHANGED ...