文件编号Document No.ESP-07-2-007-03文件名称Document Name产品/工艺变更通知Product/Process Change Notice(PCN)文件版本Document Version1.4保存期限Retention Period5 年5 yearswww.espressif.com Page 1 / 8基于 ESP32-S2R2 和 ESP32-S2FN4R2 芯片的 ESP32-S2 系列产品的芯片版本升级Upgrade Chip Revision of ESP32-S2 Series Products Based on ESP32-S2R2 and ESP32-S2FN4R2PCN编号PCN No.PCN20230601提出日期Issue Date of PCN2023/06/29变更日期Proposed Date of Change2023/08/29预计变更后产品首次出货日期Proposed Date of FirstShipment After Change2023/09/29PCN 类型 / PCN Category客户需要批准/ Customer Approval required客户通知/ Customer Notification1. 影响产品名称/ Affected Product Name1) 芯片产品/ Chip Products：ESP32-S2R2，ESP32-S2FN4R22) 模组产品/ Module Products：Product NameProduct MPNMain ChipESP32-S2-SOLOESP32-S2-SOLO-N4R2ESP32-S2R2ESP32-S2-SOLOESP32-S2-SOLO-N8R2ESP32-S2R2ESP32-S2-SOLOESP32-S2-SOLO-N16R2ESP32-S2R2ESP32-S2-SOLO-UESP32-S2-SOLO-U-N4R2ESP32-S2R2ESP32-S2-SOLO-UESP32-S2-SOLO-U-N8R2ESP32-S2R2ESP32-S2-SOLO-UESP32-S2-SOLO-U-N16R2ESP32-S2R2ESP32-S2-MINI-1ESP32-S2-MINI-1-N4R2ESP32-S2FN4R2ESP32-S2-MINI-1UESP32-S2-MINI-1U-N4R2ESP32-S2FN4R23) 开发板产品/ Development Board Products：Product NameProduct MPNModule on BoardESP32-S2-DevKitC-1ESP32-S2-DevKitC-1RESP32-S2-SOLO-N4R2ESP32-S2-DevKitC-1ESP32-S2-DevKitC-1RUESP32-S2-SOLO-U-N4R2ESP32-S2-DevKitM-1ESP32-S2-DevKitM-1RESP32-S2-MINI-1-N4R2ESP32-S2-DevKitM-1ESP32-S2-DevKitM-1RUESP32-S2-MINI-1U-N4R22. 变更原因/ Reason for Change产品持续升级优化，进一步提升 ESP32-S2 系列芯片性能。 www.espressif.com Page 2 / 8Upgrade ESP32-S2 series of chips to further improve the performance.  3. 变更描述/ Description of ChangeESP32-S2 系列产品的芯片版本将由 v0.0 升级为 v1.0。结合使用乐鑫推荐版本的软件，芯片版本为 v1.0 的ESP32-S2 系列产品提升了 11g，11n 中高速率发射功率。同时，芯片版本为 v1.0 的 ESP32-S2 系列产品的其他性能较变更前版本的产品有提升。具体信息参见附录 I 中 勘误表信息。段落 1 中列出的模组和开发板产品中使用的主芯片为 ESP32-S2 系列芯片，因此也进行相应变更。Upgrade ESP32-S2 series of chips from chip revision v0.0 to chip revision v1.0. With the recommended ESP-IDFversions, the ESP32-S2 series products based on chip revision v1.0 have improved transmit power in high rates for11g and 11n. The ESP32-S2 series products based on chip revision v1.0 have other performance improvements.For details, please refer to Appendix I for Errata Information.Related products listed in Para 1 are based on ESP32-S2 series of chips, and thus will change accordingly. 4. 变更对比/ Change Comparison请见附录 I：变更对比。Please refer to Appendix I: Change comparison.识别方式/ Identification Method:芯片产品：通过 eFuse  及产品丝印。Chip products: Identified by eFuse bits and chip marking.  模组产品通过主芯片的 eFuse，模组屏蔽盖丝印的产品规格标识位，或产品外箱标签中的 PW 号。Module products: Identified by the chip eFuse, module shield marking, or PW No. on carton box.开发板产品通过主芯片的 eFuse，模组屏蔽盖丝印的产品规格标识位，或产品外箱标签中的 PW 号。Development board product：Identified by the chip eFuse, module shield marking, or PW No. on carton box.5.变更影响/ Impact of Change1)品质和性能/ Quality & Performance:结合使用乐鑫推荐版本的软件，芯片版本为v1.0的ESP32-S2系列产品提升了11g，11n中高速率发射功率，低速率及11b的发射功率未做调整，对认证无直接影响。具体射频功率参见附录I中 射频功率信息。结合使用需求版本的乐鑫软件，芯片版本为v1.0的ESP32-S2系列产品射频功率无变化。With the recommended ESP-IDF versions, the ESP32-S2 series products based on chip version v1.0 haveimproved transmit power in high rates for 11g and 11n. The transmit power in low rates and for 11b remainsunchanged, which does not have a direct impact on certification. For details about RF transmit power, pleaserefer to Appendix I for RF Power Information. The RF transmit power of the ESP32-S2 series products based onchip version v1.0 remains unchanged as before.芯片版本为v1.0的ESP32-S2系列产品的其他性能较变更前版本的产品有提升。具体信息参见附录I中 勘误表信息。The ESP32-S2 series products based on chip revision v1.0 have other performance improvements. For details,please refer to Appendix I for Errata Information. www.espressif.com Page 3 / 82)交期/ Delivery:无影响/No impact.3)生产料号/ Material Part Numbers (MPN):客户可以继续使用原有的芯片产品名称下单；You can still use the current chip name to place orders.段落1中列出的模组和开发板的MPN不变更，客户可以继续使用原有的产品MPN进行下单。There is no change to the MPN of the affected Espressif modules and development board products listed in para1. You can still use the current MPN to place orders.4)认证/ Certification：段落 1 列出的芯片产品变更后对认证无直接影响。由于客户的匹配电路存在差异，建议客户对发射功率进行对比测试，如需要，可联系乐鑫提供相应的支持。Changes to the chip products listed in para 1 have no direct impact on certification. Given the differencesbetween matching circuits, it is recommended to conduct comparative tests on transmit power. Please contactEspressif for support if needed.段落 1 中涉及的模组的认证有效性无变化，客户可正常使用变更后的模组产品。Certifications for the modules listed in para 1 are still valid, and you can use the upgraded module productsdirectly.5) 软件/ ESP-IDF使用段落 1 列出的变更后的产品时，如需表现更优的射频功率，请识别确认所使用的 ESP-IDF 版本为推荐版本的ESP-IDF 版本，ESP-IDF 各分支支持信息参见表 1。同时强烈建议您升级到 ESP-IDF release 分支的最新稳定版本，更多软件信息参见 ESP-IDF 版本简介。如有问题，请联系乐鑫。（注：使用需求版本和推荐版本都可支持变更后的产品运行。使用需求版本的 ESP-IDF 版本，搭载变更后的产品的射频功率维持不变。）For the upgraded products listed in para 1 with better RF performance, please be sure that you use therecommended ESP-IDF versions for your branch. Please refer to Table 1 for details about the required andrecommended ESP-IDF versions. Moreover, it is highly recommended to upgrade to the latest stable version foryour branch. For more software information, please refer to ESP-IDF Versions. If you have any questions, pleasecontact Espressif.(Note: The upgraded products can run on all required and recommended ESP-IDF versions. The RF transmitpower of the upgraded products remains unchanged as long as the required version of ESP-IDF is used.)表 1 ESP-IDF 各分支支持信息Table 1 Required and recommended ESP-IDF versions corresponding to the upgraded products www.espressif.com Page 4 / 8ESP-IDF BranchRequired IDFVer. FromRF ImprovedCommit IDRecommendedIDF Ver. Fromrelease/v4.2v4.27482ad51v4.2.3release/v4.3v4.387c2352av4.3.3release/v4.4v4.471b81e4av4.4.1release/v5.0v5.09909c4a3v5.0注意/ Note：ESP-IDF v4.2 已正式停止维护，乐鑫将不再对该版本提供增加新功能、修复 bug、修复安全问题等支持。ESP-IDF v4.2 has reached End-of-Life. New features, bug fixes, and security fixes will no longer be supported onthis branch.6.变更前后产品处理/ How to Deal with ProductsFIFO7. 相关报告/ Related Report(s):Related ECN No.ECN-2021-031Performance Test Report射频性能验证/ RF Performance Verification: PassOther Reports (Plsspecify)其他项目信息参见 ESP32-S2 系列芯片勘误表For information about other items, refers to ESP32-S2 Series SoC Errata 8. 给使用者的验证建议/ Verification Suggestion To Users建议客户可识别确认所使用的ESP-IDF版本为推荐版本的ESP-IDF版本，结合实际应用场景进行验证。Suggest to check if you use the recommended ESP-IDF versions, and do the verification with practical applicationscenarios. www.espressif.com Page 5 / 8Appendix I 变更对比/ Change Comparison1产品基本信息/ Product Basic InformationNo.项目/ Item变更前/ BeforeChange变更后/ After Change1.1Chip Revisionv0.0v1.01.2eFuse 识示位/ eFuse identification bitEFUSE_RD_MAC_SPI_SYS_3_REG[19]00EFUSE_RD_MAC_SPI_SYS_3_REG[18]01EFUSE_RD_MAC_SPI_SYS_3_REG[20]00EFUSE_RD_MAC_SPI_SYS_4_REG[6]00EFUSE_RD_MAC_SPI_SYS_4_REG[5]00EFUSE_RD_MAC_SPI_SYS_4_REG[4]001.3Chip Marking(Main Die Line)xAxxxxxxxBxxxxxx1.4Module MPNNo change1.5Module Marking（Specification Marking Line）XXXXXXMBXXXX www.espressif.com Page 6 / 82 射频功率信息/ RF Power InformationNo.Tx_RateBefore ChangeAfter Change（Chip Revisionv0.0)(Chip Revision v1.0with RecommendedESP-IDF Version)Chip Revision v1.0with RequiredESP-IDF Version)2.11m19.519.519.52.22m19.519.519.52.35.5m19.519.519.52.411m19.519.519.52.56m1818182.69m1818182.712m1818182.818m1818182.924m1718172.1036m1718172.1148m1618162.1254m1518152.13mcs01818182.14mcs11818182.15mcs21818182.16mcs31718172.17mcs41717172.18mcs51617162.19mcs61517152.20mcs713.51713.52.21mcs0_401818182.22mcs1_401818182.23mcs2_401818182.24mcs3_401718172.25mcs4_401717172.26mcs5_401617162.27mcs6_401516.5152.28mcs7_4013.516.513.53勘误表信息/ Errata InformationNo.ItemBefore ChangeAfter Change3.1系统SystemNA1) 修复 VDDA 和 VDD3P3_RTC 管脚在芯片关闭时漏电问题。Fixed leakage current at the VDDA and www.espressif.com Page 7 / 8VDD3P3_RTC pin during shutdown2) 修复 flash 下载随机失败问题。Fixed random flash download failure3.2RTC I2CNA修复低温条件下 RTC_I2C_RESET 下降沿触发复位问题Fixed reset triggered by the falling edge ofRTC_I2C_RESET at low temperature3.3SPINA修复 SPI 自动暂停后软件重启卡住问题Fixed SPI stuck after soft restart from autosuspension3.4USB OTGNA修复 USB OTG 使用 AHB 总线仲裁时出现异常数据Fixed abnormal data during AHB bus arbitrationby USB OTG3.5SAR ADCNA修复 SAR ADC 的位 1 不反转问题。Fixed the non-flip of Bit 1 in SAR ADC4软件信息/ ESP-IDF InformationNo.ESP-IDF Branch Required IDF Ver.FromRF ImprovedCommit IDRecommended IDFVer. From4.1release/v4.2v4.27482ad51v4.2.34.2release/v4.3v4.387c2352av4.3.34.3release/v4.4v4.471b81e4av4.4.14.4release/v5.0v5.09909c4a3v5.05技术规格书信息/ Datasheet InformationNo.ItemBefore ChangeAfter Change5.1ESP32-S2DatasheetESP32-S2 SeriesDatasheet (for chiprevision v0.0)ESP32-S2 Series Chip Revision v1.0 Datasheet www.espressif.com Page 8 / 8邮件订阅Espressif Email Notifications乐鑫为注册用户提供电子邮件通知服务，用户可通过乐鑫订阅系统接收技术文档更新、新闻通讯、PCN 等邮件通知。Espressif sends email notifications of technical documentation changes, along with newsletters, PCNs andother valuable information, to subscribed customers only. If you wish to stay updated on our products andservices, please subscribe here.客户响应要求Customer Response Requirements需客户批准的变更/ Change Requiring Customer Approval：a) 客户须在乐鑫发出 PCN 后的 30 天内告知乐鑫已收到 PCN。如客户未在接收到 PCN 后的 30 天内告知已收到，则视为客户收到变更。Customers are requested to acknowledge receipt of the PCN within 30 calendar days from the date ofissue of the PCN. Customers would be considered as notified 30 calendar days after issue of the PCN if noacknowledgement is received.b) 自发布 PCN 之日起 90 天内，客户没有任何其他反馈，则表示客户接受该 PCN。The lack of any additional responses from customers within 90 calendar days from the date of issue of thePCN constitutes acceptance of the proposed changes.客户通知/ Customer Notification：a) 客户需在乐鑫发出 PCN 后 14 天内通知乐鑫收到该 PCN。 如客户未在接收到 PCN 14 日反馈乐鑫，则视为客户确认该PCN。Customers are requested to acknowledge receipt of the PCN within 14 calendar days from the date ofissue of the PCN. Customers would be considered as having acknowledged the PCN if no response isreceived after 14 calendar days.请反馈至pcn@espressif.com。Please send feedback to pcn@espressif.com.客户批准/确认信息Customer Approval/Acknowledgement and Remarks客户公司全称：Customer’s Company Name:PCN 评审结果/ PCN Review Result：批准/确认Accepted/Acknowledged不批准/ Rejected需要分析/ Further Analysis required客户意见/Comment:公司代表人姓名Representative’s Name:公司代表人职责Representative’s Job Title:公司代表人签名Representative’s Signature:日期Date: