Cypress AN49947 دليل المستخدم

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Undershoot Effect in RTC Circuit
of 0.25μ nvSRAM
AN49947
Associated Part Family: CY14BXXXK/STK17TX8
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Application Note Abstract
This application note describes the undershoot effect in the RTC circuit of the 256K and 1M nvSRAM in 0.25μ technology. The
part numbers affected are CY14B256K/STK17T88 and CY14B101K/STK17TA8.
Introduction Effect on RTC Oscillator
Under certain noise conditions, the Real Time Clock (RTC) The RTC oscillator circuit, which is embedded on the 256K
circ

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AN49947 Document History Document Title: Undershoot Effect in RTC Circuit of 0.25μ nvSRAM Document Number: 001-49947 Orig. of Submission Revision ECN No. Change Date Description of Change ** 2606848 NXR 11/13/08 New application note All trademarks or registered trademarks referenced herein are the property of their respective owners. Cypress Semiconductor 198 Champion Court San Jose, CA 95134-1709 Phone: 408-943-2600 Fax: 408-943-4730 http://www.cypress.com © Cypress Semiconductor Corporation,