CY8CTST110, CY8CTMG110 September 2008 Silicon Errata for CY8CTST110 and CY8CTMG110 This document describes the errata for the TrueTouch devices CY8CTST110 and CY8CTMG110. Details include errata trigger conditions, scope of impact, available workarounds, and silicon revision applicability. Compare this document to the device's data sheet for a complete functional description. Contact your local Cypress Sales Representative if you have questions. Part Numbers Affected Part Number CY8CTxx110 Ordering Information CY8CTST110-32LTXI CY8CTST110-32LTXIT CY8CTST110-00PVXI CY8CTMG110-32LTXI CY8CTMG110-32LTXIT CY8CTMG110-00PVXI Errata Summary The following table defines the errata applicability to available CY8CTxx110 family devices. Items [1]. Internal Main Oscillator (IMO) Tolerance Deviation at Temperature Extremes Part Number CY8CTxx110 Silicon Revision A Fix Status Silicon fix is planned. 1. Internal Main Oscillator (IMO) Tolerance Deviation at Temperature Extremes PROBLEM DEFINITION Asynchronous digital communication interfaces may fail framing beyond 0 to 70C. This problem does not affect end product usage between 0 and 70C. PARAMETERS AFFECTED The IMO frequency tolerance. The worst case deviation when operated below 0C and above +70C and within the upper and lower data sheet temperature range is 5%. TRIGGER CONDITION The asynchronous Rx/Tx clock source IMO frequency tolerance may deviate beyond the data sheet limit of 2.5% when operated beyond the temperature range of 0 to +70C. SCOPE OF IMPACT This problem may affect UART, IrDA, and FSK implementations. WORKAROUND Implement a quartz crystal stabilized clock source on at least one end of the asynchronous digital communication interface. FIX STATUS The cause of this problem and its solution has been identified. Silicon fix is planned to correct the deficiency in silicon. September 25, 2008 Document No. 001-49078 Rev. ** 1 [+] Feedback CY8CTST110, CY8CTMG110 References [1] Document # 001-46931 CY8CTST110 TrueTouch(TM) Single-Touch Touchscreen Controller (Final) [2] Document # 001-46928 CY8CTMG110 TrueTouch(TM) Multi-Touch Gesture Touchscreen Controller (Final) Document History Document Title: Silicon Errata for CY8CTST110 and CY8CTMG110 Document Number: 001-49078 Revision ** ECN 2572224 Submission Date 09/25/08 Orig. of Change KRY Description of Change IMO tolerance deviation PSoC is a registered trademark of Cypress Semiconductor Corp. TrueTouch, Programmable System-on-Chip, PSoC Designer, and PSoC Express are trademarks of Cypress Semiconductor Corp. All other 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/ (c) Cypress Semiconductor Corporation, 2008. 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Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress' product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. September 25, 2008 Document No. 001-49078 Rev. ** 2 [+] Feedback