End of Life (EOL) Change Notice

#2024-02-21-1513

Effective Date:

EOL Issue Date:

PCN Type:

Feb 21, 2024

Feb 27, 2025

Discontinuance

Description of Change

Silicon Labs announces an End of Life (EOL) and Last Time Buy (LTB) for QSOP package in EFM8BB1/2/3, EFM8LB1,

EFM8SB1 and EFM8UB1 MCUs.

Existing customers may place LTB orders per the key dates above and guidelines listed in this EOL form.

All customer orders placed after the EOL Issue Date will be Non-Cancellable and Non-Returnable (NCNR). These orders will

need to have a Customer Requested Delivery Date (CRD) before the EOL Effective Date. As of this EOL Issue Date, Silicon

Labs will no longer accept customer orders with a CRD beyond the EOL Effective Date.

Note: Silicon Labs will accept customer orders that are received prior to the Last Order Date shown above, but does not

guarantee that it will be able to fill all or part of any orders due to limited availability, manufacturing issues or other reasons

beyond Silicon Labs’ reasonable control. Estimated delivery dates beyond normal lead time should not be considered as a firm

acceptance or a guarantee of supply at any time.

If you have questions about this EOL, please contact your Silicon Labs sales representative. A list of Silicon Labs sales

representatives is available at www.silabs.com.

2402211513 End of Life for QSOP package in

EFM8BB1/2/3, EFM8LB1, EFM8SB1,

EFM8UB1

Aug 27, 2024

Last Order Date:

Impact on Form, Fit, Function, Quality, Reliability

None.

Product Identification

Existing Part # Replacement Part # DropInCompInd.

EFM8BB10F8G-A-QSOP24 EFM8BB10F8G-A-QFN20 No

EFM8BB10F8G-A-QSOP24R EFM8BB10F8G-A-QFN20R No

EFM8BB10F8I-A-QSOP24 EFM8BB10F8I-A-QFN20 No

EFM8BB10F8I-A-QSOP24R EFM8BB10F8I-A-QFN20R No

EFM8BB21F16G-C-QSOP24 EFM8BB21F16G-C-QFN20 No

EFM8BB21F16G-C-QSOP24R EFM8BB21F16G-C-QFN20R No

EFM8BB21F16I-C-QSOP24 EFM8BB21F16I-C-QFN20 No

EFM8BB21F16I-C-QSOP24R EFM8BB21F16I-C-QFN20R No

EFM8BB31F16G-D-QSOP24 EFM8BB31F16G-D-QFN24 No

EFM8BB31F16G-D-QSOP24R EFM8BB31F16G-D-QFN24R No

EFM8BB31F16I-D-QSOP24 EFM8BB31F16I-D-QFN24 No

EFM8BB31F16I-D-QSOP24R EFM8BB31F16I-D-QFN24R No

EFM8BB31F32G-D-QSOP24 EFM8BB31F32G-D-QFN24 No

Reason for Change

The supplier that provides the QSOP packaging used in these product families has announced an End of Life (EOL) of the

QSOP package. No alternate supplier is available for this package type. This impacts Silicon Labs ability to manufacture the

QSOP packaged devices.

New datasheet revisions with updated ordering guide information will be announced separately.

silabs.com | Building a more connected world.

End of Life (EOL) Change Notice
#2024-02-21-1513
EFM8BB31F32G-D-QSOP24R EFM8BB31F32G-D-QFN24R No            
EFM8BB31F32I-D-QSOP24  EFM8BB31F32I-D-QFN24  No            
EFM8BB31F32I-D-QSOP24R EFM8BB31F32I-D-QFN24R No            
EFM8BB31F64G-D-QSOP24  EFM8BB31F64G-D-QFN24  No            
EFM8BB31F64G-D-QSOP24R EFM8BB31F64G-D-QFN24R No            
EFM8BB31F64I-D-QSOP24  EFM8BB31F64I-D-QFN24  No            
EFM8BB31F64I-D-QSOP24R EFM8BB31F64I-D-QFN24R No            
EFM8LB10F16E-C-QSOP24  EFM8LB11F16E-C-QFN24  No            
EFM8LB10F16E-C-QSOP24R EFM8LB11F16E-C-QFN24R No            
EFM8LB11F16E-C-QSOP24  EFM8LB11F16E-C-QFN24  No            
EFM8LB11F16E-C-QSOP24R EFM8LB11F16E-C-QFN24R No            
EFM8LB11F32E-C-QSOP24  EFM8LB12F32E-C-QFN24  No            
EFM8LB11F32E-C-QSOP24R EFM8LB12F32E-C-QFN24R No            
EFM8LB12F32E-C-QSOP24  EFM8LB12F32E-C-QFN24  No            
EFM8LB12F32E-C-QSOP24R EFM8LB12F32E-C-QFN24R No            
EFM8LB12F64E-C-QSOP24  EFM8LB12F64E-C-QFN24  No            
EFM8LB12F64E-C-QSOP24R EFM8LB12F64E-C-QFN24R No            
EFM8SB10F8G-A-QSOP24   EFM8SB10F8G-A-QFN24   No            
EFM8SB10F8G-A-QSOP24R  EFM8SB10F8G-A-QFN24R  No            
EFM8UB11F16G-C-QSOP24  EFM8UB11F16G-C-QFN24  No            
EFM8UB11F16G-C-QSOP24R EFM8UB11F16G-C-QFN24R No            
Customer Response
Lack of acknowledgment of the PCN within 30 days constitutes acceptance of the change, Ref. JEDEC-J-STD-046.
To request further data or inquire about this notification, please contact your Silicon Labs sales representative.  A list of Silicon 
Labs sales representatives is available at http://www.silabs.com.
Customers may approve early PCN acceptance by emailing approval, along with PCN # to PCN@silabs.com
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
Kit Identification
Orders for the following obsolete kits will no longer be accepted.
Existing Kit #   Replacement Kit # 
NA               NA                
2
silabs.com | Building a more connected world.