EFR32 Wireless Gecko
EFR32MR21 Errata
This document contains information on the EFR32MR21 errata. The latest available revision of this device is revision C.
Errata that have been resolved remain documented and can be referenced for previous revisions of this device.
The device data sheet explains how to identify the chip revision, either from the package marking or electronically.
Errata effective date: June, 2023.
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1. Errata Summary
The table below lists all known errata for the EFR32MR21 and all unresolved errata of the EFR32MR21.
Table 1.1. Errata Overview
Designator Title/Problem Workaround
Exists
Exists on Revision:
B C
CUR_E304 Higher Than Expected EM2/EM3 Current No — X
GPIO_E302 Increased Leakage Current When EM4WU Pins Are Enabled and
the Pin State Is High
Yes X X
HFXO_E301 HFXO DISONDEMAND and FORCEEN Can Cause Device to
Hang
Yes X X
LFXO_E301 LFXO Minimum Load Capacitance Yes — X
RADIO_E308 Low Output Power for 20 dBm Power Amplifier at High Tempera-
ture
No — X
TIMER_E301 Continuous Overflow and Underflow Interrupts in Quadrature
Counting Mode
Yes X X
USART_E301 Possible Data Transmission on Wrong Edge in Synchronous
Mode
Yes X X
USART_E302 Additional SCLK Pulses Can Be Generated in USART Synchro-
nous Mode
Yes X X
USART_E304 PRS Transmit Unavailable in Synchronous Secondary Mode No X X
WDOG_E301 Clear Command is Lost Upon EM2 Entry Yes X X
EFR32MR21 Errata
Errata Summary
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