3 Replies Latest reply on Jun 3, 2010 1:50 PM by ron.webster

    Questions about nonvolatile store on STK11C68-5

    ron.webster

      The block diagram on the front page of the STK11C68 datasheet shows the /HSB pin, but this pin is never mentioned anywhere else, or shown in the pinout. Is there or isn't there an /HSB pin?

         

      Page 9 mentions AutoStore, but the document implies that the chip does not have the AutoStore feature. Does the chip have AutoStore or not?

         

      Page 11 mentions 10 years or 10^5 cycles retention/endurance, but the table on page 5 mentions 100 years and 10^6 cycles. Which is it?

         

      Thank you.

        • 1. Re: Questions about nonvolatile store on STK11C68-5
          content.librarian

          Q1. The block diagram on the front page of the STK11C68 datasheet shows the /HSB pin, but this pin is never mentioned anywhere else, or shown in the pinout. Is there or isn't there an /HSB pin?

             

          A. HSB option is not available in this part.

             

          Q2. Does the chip have AutoStore or not?

             

          A. STK11C68 is a SoftStore nvSRAM and it doesn't have Autostore Operation. Data transfers under software control from SRAM to the nonvolatile elements (the STORE operation). Please refer to the datasheet in this link - http://www.cypress.com/?docID=15505

             

          Q3. Page 11 mentions 10 years or 10^5 cycles retention/endurance, but the table on page 5 mentions 100 years and 10^6 cycles. Which is it?

             

          A. In the datasheet link above, it tells only 1,000,000 STORE cycles & 100 year data retention.

          • 2. Re: Questions about nonvolatile store on STK11C68-5
            content.librarian

            Q1. The block diagram on the front page of the STK11C68 datasheet shows the /HSB pin, but this pin is never mentioned anywhere else, or shown in the pinout. Is there or isn't there an /HSB pin?

               

            A. HSB option is not available in this part.

               

            Q2. Does the chip have AutoStore or not?

               

            A. STK11C68 is a SoftStore nvSRAM and it doesn't have Autostore Operation. Data transfers under software control from SRAM to the nonvolatile elements (the STORE operation). Please refer to the datasheet in this link - http://www.cypress.com/?docID=15505

               

            Q3. Page 11 mentions 10 years or 10^5 cycles retention/endurance, but the table on page 5 mentions 100 years and 10^6 cycles. Which is it?

               

            A. In the datasheet link above, it tells only 1,000,000 STORE cycles & 100 year data retention.