Process Change Notice #1311071 ____________________________________________________________________________________________________ User Registration Register today to create your account on Silabs.com. Your personalized profile allows you to receive technical document updates, new product announcements, “how-to” and design documents, product change notices (PCN) and other valuable content available only to registered users. http://www.silabs.com/profile PCN Date: 11/7/2013 Effective Date: 2/13/2014 Title: C8051F92x/F93x Revision G Originator: Atsushi Ninomiya Phone: 512-532-5828 Dept: Marketing Customer Contact: Kathy Haggar Phone: 512-532-5261 Dept: Sales PCN Type: Datasheet Foundry Packing Product Revision Assembly Labeling Discontinuance Test Other Last Order Date: Not Applicable. PCN Details Description of Change: Silicon Labs is pleased to announce hardware revision G of the C8051F92x/F93x devices. Revision 1.4 of the corresponding datasheet for these products and Revision 1.3 of the C8051F930-GDI datasheet addendum for wafer sales reflect this change. For customers using Revision E the change to Revision G eliminates a potential issue with the RTC after a Sleep wake up in some applications. This behavior could occur in one-cell mode when VBAT falls below 1.5V and the MCU was in Sleep mode for ~100ms. If the behavior occurred, the RTC would either miss a clock period or change in frequency. This revision change also improved robustness of the device during VBAT ramp time that exceeds maximum datasheet specifications. For customers using Revision F the change to Revision G eliminates a potential issue with the RTC after a Sleep wake up in some applications. This behavior could occur in one-cell mode when VBAT falls below 1.5V and the MCU was in Sleep mode for ~100ms. If the behavior occurred, the RTC would either miss a clock period or change in frequency. C8051F92x/F93x Datasheet revision 1.4 updates the orderable part number to revision G along with other minor edits. C8051F930-GDI Datasheet revision 1.3 updates the orderable part number to revision G and adds Failure Analysis guidelines for wafer sales. After the effective date of this PCN, Silicon Labs reserves the right to deliver Revision G to customer ordering Revision E or F. Refer to Product Identification section of this PCN for details. Reason for Change: C8051F92x/F93x Revision G release C8051F92x/F93x Datasheet revision 1.4 release C8051F930-GDI Datasheet revision 1.3 release W7206F1 Process Change Notice Form rev AJ The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 4 Process Change Notice #1311071 ____________________________________________________________________________________________________ Impact on Form, Fit, Function, Quality, Reliability: There is no impact to form, fit, quality or reliability. The following functions are impacted: - The reset value of REVID SFR will read 0x06 for Revision G instead of 0x05 for Revision F or 0x04 for Revision E. - Behavior with the RTC after a Sleep wake up has been fixed. - (For customer currently using Revision E) Improved robustness of the device during VBAT ramp time that exceeds maximum datasheet specifications Product Identification: The following orderable part numbers are affected: After the effective date of this PCN, Silicon Labs reserves the right to deliver Revision G to customer ordering Revision E or F. Revision F Existing OPN Revision G Replacement OPN C8051F920-F-GM C8051F920-F-GQ C8051F921-F-GM C8051F930-F-GM C8051F930-F-GQ C8051F931-F-GM C8051F930-F-GDI CF92x-xxxxxGM CF92x-xxxxxGQ CF93x-xxxxxGM CF93x-xxxxxGQ C8051F920-G-GM C8051F920-G-GQ C8051F921-G-GM C8051F930-G-GM C8051F930-G-GQ C8051F931-G-GM C8051F930-G-GDI CF92xxxxxxGGM CF92xxxxxxGGQ CF93xxxxxxGGM CF93xxxxxxGGQ Revision E Existing OPN Revision G Replacement OPN C8051F920-GM C8051F920-GQ C8051F921-GM C8051F930-GM C8051F930-GQ C8051F931-GM C8051F930-GDI CF92x-xxxxxGM CF92x-xxxxxGQ CF93x-xxxxxGM CF93x-xxxxxGQ C8051F920-G-GM C8051F920-G-GQ C8051F921-G-GM C8051F930-G-GM C8051F930-G-GQ C8051F931-G-GM C8051F930-G-GDI CF92xxxxxxGGM CF92xxxxxxGGQ CF93xxxxxxGGM CF93xxxxxxGGQ Note: The part numbers above include tape and reel variants which are denoted with an “R” at the end of the orderable part number. Last Date of Unchanged Product: 2/13/2014 W7206F1 Process Change Notice Form rev AJ The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 5 Process Change Notice #1311071 ____________________________________________________________________________________________________ Qualification Samples: Samples are available now. Please contact your Silicon Labs sales representative to order samples. A list of Silicon Labs sales representatives is available at www.silabs.com. Customer Early Acceptance Sign Off: Customers may approve early PCN acceptance by completing the information below: Early Acceptance: Date: Name: Company: Email your early Acceptance approval to: [email protected] Qualification Data: See Appendix. W7206F1 Process Change Notice Form rev AJ The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 6 Process Change Notice #1311071 ____________________________________________________________________________________________________ Appendix W7206F1 Process Change Notice Form rev AJ The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 7 Process Change Notice #1311071 ____________________________________________________________________________________________________ W7206F1 Process Change Notice Form rev AJ The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 8 Process Change Notice #1311071 ____________________________________________________________________________________________________ W7206F1 Process Change Notice Form rev AJ The information contained in this document is PROPRIETARY to Silicon Laboratories, Inc. and shall not be reproduced or used in part or whole without Silicon Laboratories’ written consent. The document is uncontrolled if printed or electronically saved. Pg 9