●PCN Issue Date: Apr 26, 2023
●Effective Date: Aug 01, 2023
●PCN Type: Errata
●Description of Change
■Silicon Labs announces the release of errata version 0.3 for EFM8BB52 device.
■Revision 0.3
▲Added BL_E201 – UART Bootloader Bootload Mode Entry Pin Not Available
■The pre-programmed factory bootloader for QFN20 and TSSOP20 packaged EFM8BB52 devices use an unavailable pin for bootload mode entry.
■A bootloader is not required for normal operation. If a bootloader is required by the application, a custom-written bootloader can be downloaded to the device, replacing the pre-programmed factory bootloader image. A bootloader binary is also provided in AN945: "EFM8 Factory Bootloader User Guide" which utilizes the bootload entry pin specified in the device data sheet, and can be used to replace the factory bootloader.
■As of the Effective Date of this PCN, Silicon Labs will update the pre-programmed factory bootloader to fix this issue. This issue is resolved in revision C devices with date code 2330 and later.
●Reason for Change
■The factory bootloader does not work as intended on QFN20 or TSSOP20 packaged EFM8BB52 devices.
●Impact on Form, Fit, Function, Quality, Reliability
■No impact on Form, Fit, Quality or Reliability. Function is impacted as described in above.
●Last Date of Unchanged Product: Aug 01, 2023
●Customer Response
■Lack of acknowledgment of the PCN within 30 days constitutes acceptance of the change, Ref. JEDEC-J-STD-046.

Brand of Product：	Silicon Labs
Part#：	EFM8BB52 、 EFM8 、 EFM8BB52F16G-C-QFN20 、 EFM8BB52F16G-C-QFN20R 、 EFM8BB52F16G-C-TSSOP20 、 EFM8BB52F16G-C-TSSOP20R 、 EFM8BB52F16I-C-QFN20 、 EFM8BB52F16I-C-QFN20R 、 EFM8BB52F16I-C-TSSOP20 、 EFM8BB52F16I-C-TSSOP20R 、 EFM8BB52F32G-C-QFN20 、 EFM8BB52F32G-C-QFN20R 、 EFM8BB52F32G-C-TSSOP20 、 EFM8BB52F32G-C-TSSOP20R 、 EFM8BB52F32I-C-QFN20 、 EFM8BB52F32I-C-QFN20R 、 EFM8BB52F32I-C-TSSOP20 、 EFM8BB52F32I-C-TSSOP20R More Part#
Product Category：	More
Application：	More
Data Type：	PCN/EOL More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	QFN20;TSSOP20
Language：	English Chinese Chinese and English Japanese
Date of Creation：	Apr 26, 2023
Version Number：
Data Encoding：	2304261442;2023-04-26-1442
Data Size：	763 KB