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 Version 1.1 保存期限 Retention Period 3 年 3 years www.espressif.com Page 1 / 3!ESP32-WROVER-B系列模组二维码定义变更 QR CODE INFORMATION CHANGE FOR ESP32-WROVER-B MODULES PCN 编号 PCN No. PCN-03-2019060501 提出日期 Issue Date of PCN 20190605 产品名称 Product Name ESP32-WROVER-B 系列模组ESP32-WROVER-B Modules 变更日期 Proposed Date of Change 20190612 封装类型/尺寸 Package Type/Size Module 首次出货日期 Proposed Date of First Shipment 20190619 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: 越来越多客户需求模组镭雕二维码内容包含 MAC 信息，现在工厂已经可以导入该需求，特此变更。 More and more customers request that the MAC information be included in the QR Code printed on modules. In response, we have requested the factories to implement this change. 变更描述/Description of Change: 二维码信息变更前：Fab code+module code+PW number+SN+FW Version，共 36 位 二维码信息变更后：Fab code（2 位）+YYWW（4 位）+MAC（12 位），共 18 位 Before change: Fab code+module code+PW number+SN+FW Version, 36 digits in total After change: Fab code(2-digit)+YYWW(4-digit)+MAC(12-digit), 18 digits in total 变更影响/Impact of Change: 仅二维码信息变更，无其他影响 Only the information presented by the module QR code is changed. No other impact. 变更识别方式/ Change Identification Method: 二维码内容变更，可扫描二维码进行识别 The information presented by the module QR code is changed. This change can be identified by scanning the module OR code. 变更前后产品处理/:How to Deal with Products: FIFO www.espressif.com Page 2 / 3!相关报告/Report(s) Attached: £Related ECN No.: £Reliability Report or Plan: £Function Test Report: £RoHS/HF Test Report: £Other Reports (Pls specify): 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 and other valuable information, to subscribed customers only. If you wish to stay updated on our products and services, 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 the PCN: 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 to them. 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 having accepted 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 90 calendar 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 having accepted the proposed changes. 请反馈至 pcn@espressif.com。 Please send feedback to pcn@espressif.com. www.espressif.com Page 3 / 3! 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: