(Hong Kong)
Product Summary
The DS1249AB-70 is a 2,097,152-bit, fully static, nonvolatile SRAM organized as 262,144 words by 8 bits. The DS1249AB-70 has a self-contained lithium energy source and control circuitry which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. There is no limit on the number of write cycles which can be executed and no additional support circuitry is required for microprocessor interfacing.
Parametrics
DS1249AB-70 absolute maximum ratings: (1)Voltage on Any Pin Relative to Ground: -0.3V to +6.0V; (2)Operating Temperature: 0 to 70℃, -40 to +85℃ for IND parts; (3)Storage Temperature: -40 to +70℃, -40 to +85℃ for IND parts; (4)Soldering Temperature: 260℃ for 10 seconds.
Features
DS1249AB-70 features: (1)10 years minimum data retention in the absence of external power; (2)Data is automatically protected during power loss; (3)Unlimited write cycles; (4)Low-power CMOS operation; (5)Read and write access times as fast as 70 ns; (6)Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time; (7)Optional industrial temperature range of -40 to +85℃, designated IND; (8)JEDEC standard 32-pin DIP package.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 DS1249AB-70 |
Maxim Integrated Products |
NVRAM 2048K NV SRAM |
Data Sheet |
Negotiable |
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DS1249AB-70# |
Maxim Integrated Products |
NVRAM 2048K NV SRAM |
Data Sheet |
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DS1249AB-70IND# |
Maxim Integrated Products |
NVRAM 2048K NV SRAM |
Data Sheet |
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|
DS1249AB-70IND |
Maxim Integrated Products |
NVRAM 2048K NV SRAM |
Data Sheet |
Negotiable |
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