文件编号Document No.ESP-00-2-007-03文件名称Document Name产品/工艺变更通知Product/Process Change Notice(PCN)文件版本Document Version1.1保存期限Retention Period3 年3 yearswww.espressif.com Page1/7ESP8285 技术规格书变更ESP8285 Datasheet ChangePCN 编号PCN No.PCN-04-20190625提出日期Issue Date of PCN2019/6/25产品名称Product NameESP8285变更日期Proposed Date of Change2019/8/25封装类型/尺寸Package Type/SizeQFN 5X5样品日期Proposed Date of SampleESP8285N08: 2019/7/20ESP8285H08: 2019/6/1ESP8285H16: 2019/6/1首次出货日期Proposed Date of First Mass Production ShipmentESP8285N08: 2019/7/20ESP8285H08: 2019/6/25ESP8285H16: 2019/8/28客户批准/Customer Consent：需要批准/Approval Required通知，无需批准/Notification, Approval Not Required变更等级/Classification of Change:主要变更/Major轻微变更/Minor变更原因/Reason for Change:更新 ESP8285 芯片中所采用的 Flash 工作温度规格，以更好地适应 LED 照明等高温场景。The working temperature specification of flash used in ESP8285 chip is updated to better adapt to the hightemperature scene such as LED lighting.变更描述/Description of Change:更新 ESP8285 芯片中所采用的 Flash 工作温度规格为–40 ℃~105 ℃。芯片内部 flash 均在 105 ℃的条件下完成了 100% 测试，可以保证 105 ℃及以下温度条件下的稳定工作，以适应在 LED 照明等高温场景中的应用。考虑到旧版本 ESP8285 芯片内部 Flash 并没有在高温点 125 ℃环境中完成 100%全检测试，因此调低了最大工作温度。同时更新了部分技术参数和 eFuse 保留位，详细见如下“变更对比”和“变更识别方式”描述。The working temperature specification of flash used in ESP8285 chip is updated to -40 ℃ ~ 105 ℃. The flashused in ESP8285 chip has completed 100% function test at 105 ℃, which can ensure the stable operation at105 ℃ and below, so as to adapt to the application in high temperature scene such as LED lighting.Considering that the flash used in the old version of ESP8285 chip has not been completely 100% fullinspection tested in the 125 ℃ environment, the upper working temperature limit has been reduced. At thesame time, some technical parameters and eFuse bits are updated, as described in the following "Before andAfter the Change" and “Change Identification Method”. www.espressif.com Page2/7变更对比/Before and After the Change:ItemBefore changeAfter changeMPN (Internally used)ESP8285ESP8285N08ESP8285H08ESP8285H16Flash8M bitESP8285N08 (8 M bit)ESP8285H08 (8 M bit)ESP8285H16 (16 M bit)Operating temperature range-40 ℃~125 ℃ESP8285N08 (-40 ℃~85 ℃)ESP8285H08 (-40 ℃~105 ℃)ESP8285H16 (-40 ℃~105 ℃)MarkingESP8285ESP8285N08 (8 M bit, 85℃)ESP8285H08 (8 M bit, 105 ℃)ESP8285H16 (16 M bit, 105 ℃)1.2 技术参数 Specifications：发射功率TX Power802.11 b: +20 dBm802.11 g: +17 dBm802.11 n: +14 dBm802.11 b: +19 dBm802.11 g: +19 dBm (6 M)802.11 g: +15 dBm (54 M)802.11 n: +19 dBm (MCS0)802.11 n: +14 dBm (MCS7)1.2 技术参数 Specifications：接受灵敏802.11 b: –91 dBm (11 Mbps)802.11 b: –97 dBm (1 Mbps) www.espressif.com Page3/7度 Rx Sensitivity802.11 g: –75 dBm (54 Mbps)802.11 n: –72 dBm (MCS7)802.11 g: –74 dBm (54 Mbps)802.11 n: –70 dBm (MCS7)3.3.3. 2.4 GHz 发射器 2.4 GHzTransmitter数字校准的使用进一步改善了功率放大器的线性，从而在 802.11b传输中达到+19.5 dBm 的平均发射功率，在 802.11n(MSC0)传输中达到+18 dBm 的平均发射功率，功能超强。The function of digital calibrationfurther improves the linearity ofthe power amplifier, enabling astate of art performance ofdelivering +19.5 dBm averageTX power for 802.11btransmission and +18 dBm for802.11n (MSC0) transmission.数字校准的使用进⼀步地改善了功率放大器的线性，从而在802.11b 传输中达到 19 dBm 的平均发射功率，在 802.11n(MSC0) 传输中达到 19 dBm 的平均发射功率，功能超强。The function of digital calibrationfurther improves the linearity ofthe power amplifier, enabling astate of art performance ofdelivering +19 dBm average TXpower for 802.11b transmissionand +19 dBm for 802.11n(MSC0) transmission.3.4.1Wi-Fi 射频和基带 Wi-Fi Radioand Baseband发射功率高达 20.5 dBmUp to 20.5 dBm of transmittingpower详细性能见后面章节具体数据For detailed performance, seethe specific data in the latersection.表 5-2 射频功耗 Table 5-2变更前 Before Change变更后 After Change www.espressif.com Page4/7表 5-3 Wi-Fi 射频特征 Table 5-3变更前 Before Change变更后 After Change www.espressif.com Page5/7变更影响/Impact of Change:最高工作温度由 125 ℃降低到 105 ℃，将无法继续支持 105 ℃以上的工作环境，对于有该温度需求的客户有影响。建议受影响的客户反馈意见至 pcn@espressif.com, 由 Espressif 提供后续解决方案。The maximum operating temperature has been reduced from 125 ℃ to 105 ℃, and the chip will not be able tocontinue to support the operating environment above 105 ℃, which will have an impact on customers with thistemperature demand. It is recommended that affected customers contact pcn@espressif.com and Espressif.And Espressif will provide a follow-up solution.变更识别方式/ Change Identification Method:1. 通过芯片本体丝印可区分变更前后的产品，具体见“变更对比”。The products before and after the change can be distinguished by chip body marking, see "Before andAfter the Change".2. 通过芯片内部 eFuse 标识位可区分变更前后的产品，方式如下：The product before and after the change can be distinguished by the eFuse identification bit inside thechip, as follows:ProductMax OperatingTemperatureFlasheFuse bitValueESP8285N0885℃1M ByteEFUSE_DATA_OUT0[4]1EFUSE_DATA_OUT0[5]0EFUSE_DATA_OUT3[27:26]00ESP8285H08105℃1M ByteEFUSE_DATA_OUT0[4]1EFUSE_DATA_OUT0[5]1EFUSE_DATA_OUT3[27:26]00ESP8285H16105℃2M ByteEFUSE_DATA_OUT0[4]1 www.espressif.com Page6/7EFUSE_DATA_OUT0[5]1EFUSE_DATA_OUT3[27:26]01变更前后产品处理/:How to Deal with Products:建议客户根据应用环境调整所购买产品。Customers are advised to adjust the purchased products according to the product application environment.相关报告/Report(s) Attached:Related ECN No.:ECN-04-20190605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客户须按照如下要求给予 Espressif PCN 反馈：Customers are required to respond to Espressif, according to the following guidelines, and confirm receipt of thePCN:主要变更/For Major Changes：a) 客户须在乐鑫发出 PCN 后的 30 天内告知已收到 PCN。Customers should confirm receipt of the PCN within 30 calendar days from the date Espressif sends it tothem.b) 如客户未在接收到 PCN 后的 30 天内告知已收到，则视为客户接受变更。If customers do not confirm receipt of the PCN within 30 calendar days, they will be regarded as havingaccepted the proposed changes.c) 客户告知确认收到 PCN 后，如未在 90 天内反馈其他要求，则视为客户接受变更。After the customers confirm receipt of the PCN, the lack of any additional responses on their part within 90calendar days constitutes acceptance of the proposed changes.轻微变更/For Minor Changes：a) 如客户未在接收到 PCN 后的 7 天内告知已收到，则视为客户接受变更。If customers do not confirm receipt of the PCN within 7 calendar days, they will be regarded as havingaccepted the proposed changes.请反馈至 pcn@espressif.com。Please send feedback to pcn@espressif.com. www.espressif.com Page7/7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/Approval不批准/Disapproval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: