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STK1744 Datasheet

Part Number STK1744
Manufacturers Simtek
Logo Simtek
Description 32K x 8 AutoStore nvSRAM
Datasheet STK1744 DatasheetSTK1744 Datasheet (PDF)

www.DataSheet4U.com STK1744 nvTime™ 32K x 8 AutoStore™ nvSRAM with Real-Time Clock FEATURES • Data Integrity of Simtek nvSRAM Combined with Full-Featured Real-Time Clock • Stand-Alone Nonvolatile Memory and TimeKeeping Solution—No Other Parts Required • No Batteries to Fail • Fast 25ns, 35ns and 45ns Access Times • Software- and AutoStore™-Controlled Nonvolatile Cycles • Year 2000 Compliant with Leap Year Compensation • 24-Hour BCD Format • 100-Year Data Retention over Full Industrial Temperat.

  STK1744   STK1744






Part Number STK1743
Manufacturers Simtek
Logo Simtek
Description NV TIME 8K X 8 AUTOSTORE NVSRAM
Datasheet STK1744 DatasheetSTK1743 Datasheet (PDF)

www.DataSheet4U.com STK1743 nvTime™ 8K x 8 AutoStore™ nvSRAM with Real-Time Clock ADVANCE FEATURES • Data Integrity of Simtek nvSRAM Combined with Full-Featured Real-Time Clock • Stand-Alone Nonvolatile Memory and TimeKeeping Solution—No Other Parts Required • No Batteries to Fail • Fast 25ns, 35ns and 45ns Access Times • Software- and AutoStore™-Controlled Nonvolatile Cycles • Year 2000 Compliant with Leap Year Compensation • 24-Hour BCD Format • 100-Year Data Retention over Full Industrial T.

  STK1744   STK1744







32K x 8 AutoStore nvSRAM

www.DataSheet4U.com STK1744 nvTime™ 32K x 8 AutoStore™ nvSRAM with Real-Time Clock FEATURES • Data Integrity of Simtek nvSRAM Combined with Full-Featured Real-Time Clock • Stand-Alone Nonvolatile Memory and TimeKeeping Solution—No Other Parts Required • No Batteries to Fail • Fast 25ns, 35ns and 45ns Access Times • Software- and AutoStore™-Controlled Nonvolatile Cycles • Year 2000 Compliant with Leap Year Compensation • 24-Hour BCD Format • 100-Year Data Retention over Full Industrial Temperature Range • Full 30-Day RTC Operation on Each Power Loss • Single 5V ± 10% Power Supply DESCRIPTION PRELIMINARY The Simtek STK1744 DIP module houses 256Kb of nonvolatile static RAM, a real-time clock (RTC) with crystal and a high-value capacitor to support systems that require high reliability and ease of manufacturing. READ and WRITE access to all RTC functions and the memory is the same as a conventional x 8 SRAM. The highest eight addresses of the RAM support clock registers for centuries, years, months, dates, days, hours, minutes and seconds. Independent data resides in the integral Nonvolatile Elements at all times. Automatic RECALL on power up transfers the Nonvolatile Elements data to the SRAM, while an automatic STORE on power down transfers SRAM data to the Nonvolatile Elements. A software RECALL and STORE are also possible on user command. nvTime™ allows unlimited READ and WRITE accesses to SRAM, unlimited RECALLs and 106 STOREs. BLOCK DIAGRAM QUANTUM TRAP 512 x 512 VCC .


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