STK1743

The Simtek STK1743 DIP module houses 64Kb 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 EEPROM at all times. Automatic RECALL on power up transfers the EEPROM data to the SRAM, while an automatic STORE on power down transfers SRAM data to the EEPROM. A software RECALL and STORE are also possible on user command. nvTime™ allows unlimited accesses to SRAM, unlimited RECALLs and 106 STOREs.