EFM8SB1 Datasheet, PDF (52/55 Pages) Silicon Laboratories – The EFM8SB1 highlighted features are listed below

11. Revision History
EFM8SB1 Data Sheet
Revision History
11.1 Revision 1.2
Added CSP16 package.
Updated the "C2D / P2.0" pin on the QSOP24 pinout diagram to "C2D / P2.7."
Added crystal oscillator drive current typical values to Table 4.7 Crystal Oscillator on page 14.
Corrected the number of capacitive sense channels for 24- and 20-pin packages in Table 4.14 Capacitive Sense (CS0) on page 19.
Corrected E dimension shown in Figure 8.2 QFN20 PCB Land Pattern Drawing on page 41.
Added more information to 3.10 Bootloader.
11.2 Revision 1.1
Initial release.
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