Cypress Perform

Home > Design Support > Cypress Developer CommunityTM > Cypress Forums > Memory > Questions about nonvolatile store on STK11C68-5

Cypress Developer CommunityTM
Forums | Videos | Blogs | Training | Rewards Program | Community Components



Questions about nonvolatile store on STK11C68-5
Moderator:
PRIT

Post Reply
Follow this topic



Questions about nonvolatile store on STK11C68-5

RonW posted on 02 Jun 2010 2:12 PM PST
Member
3 Forum Posts

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.




Re: Questions about nonvolatile store on STK11C68-5

posted on 03 Jun 2010 08:27 AM PST
Senior Member
17 Forum Posts

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.



Re: Questions about nonvolatile store on STK11C68-5

posted on 03 Jun 2010 08:27 AM PST
Senior Member
17 Forum Posts

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.



Re: Questions about nonvolatile store on STK11C68-5

RonW posted on 03 Jun 2010 11:50 AM PST
Member
3 Forum Posts

Thank you.






ALL CONTENT AND MATERIALS ON THIS SITE ARE PROVIDED "AS IS". CYPRESS SEMICONDUCTOR AND ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY OF THESE MATERIALS FOR ANY PURPOSE AND DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THESE MATERIALS, INCLUDING BUT NOT LIMITED TO, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHT. NO LICENSE, EITHER EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, IS GRANTED BY CYPRESS SEMICONDUCTOR. USE OF THE INFORMATION ON THIS SITE MAY REQUIRE A LICENSE FROM A THIRD PARTY, OR A LICENSE FROM CYPRESS SEMICONDUCTOR.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms and Conditions of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms and Conditions of this site. Cypress Semiconductor and its suppliers reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

Spec No: None; Sunset Owner: KXP; Secondary Owner: VWA; Sunset Date: 06/15/20