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EFR32MG21A010F512IM32-BR
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Product Detailed Parameters
- Description：IC RF TXRX+MCU BLE 32QFN
- Series：Mighty Gecko
- Mfr：Silicon Labs
- Package：Tape & Reel (TR)
- Type：TxRx + MCU
- RF Family/Standard：Bluetooth
- Protocol：Bluetooth v5.1, Thread, Zigbee®
- Modulation：GFSK, O-QPSK
- Frequency：2.4GHz
- Data Rate (Max)：2Mbps
- Power - Output：10dBm
- Sensitivity：-104.9dBm
- Memory Size：512kB Flash, 64kB RAM
- Serial Interfaces：ADC, GPIO, I2C, I2S, SPI, UART
- Voltage - Supply：1.71V ~ 3.8V
- Current - Receiving：8.8mA
- Current - Transmitting：33.8mA
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：32-VFQFN Exposed Pad
- Supplier Device Package：32-QFN (4x4)
- GPIO：20
- Grade：-
- Qualification：-
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Overview
The EFR32MG21A010F512IM32-BR is a Silicon Labs Mighty Gecko System on Chip featuring an ARM Cortex-M4 core with a maximum clock frequency of 40 MHz. It integrates 512 kB of flash program memory and 64 kB of RAM within a QFN-32 package. The device supports Bluetooth 5.1, Thread, and Zigbee protocols at 2.4 GHz with a transmit power of 10 dBm. Operating voltage ranges from 1.8 V to 3.8 V, and it provides 20 GPIOs across an operating temperature range of -40°C to +125°C.
Feature Summary
- Supports mesh multiprotocol communication including Bluetooth 5.1, Thread, and Zigbee
- Integrates a 2.4 GHz radio with 10 dBm output power capability
- Features a 32-bit ARM Cortex-M4 microcontroller core
- Includes 20 general-purpose input/output pins for peripheral connectivity
Applications
- Bluetooth mesh networking devices
- Thread-based IoT gateways
- Zigbee smart home sensors
- Multiprotocol wireless endpoints
Procurement Notes
Verify the specific suffix 'BR' indicates reel packaging when sourcing components. Confirm that the A010 variant corresponds to the 512 kB flash and 64 kB RAM configuration rather than higher capacity options. Ensure compatibility with development tools like Simplicity Studio for firmware deployment. Check RoHS compliance documentation for environmental regulations in target markets.
Selection Notes
Select this model for applications requiring integrated support for multiple wireless standards without external protocol controllers. The 40 MHz Cortex-M4 core offers sufficient processing speed for standard IoT tasks. Consider the 10 dBm RF output for moderate range requirements. Evaluate the QFN-32 footprint against board space constraints compared to larger packages.
Part Context
This component belongs to the EFR32MG21 Mighty Gecko Series 2 family. It shares architectural similarities with other MG21 variants but differs in memory size and core type. Unlike some series members using Cortex-M33, this specific part utilizes a Cortex-M4 core optimized for performance and cost efficiency in connected devices.
Replacement Considerations
Direct substitutes include EFR32MG21A010F512IM32-B which uses tape-and-reel packaging instead of cut-tape. Variants with different flash sizes such as 256 kB or 1024 kB may require software adaptation. Cross-series replacements are not recommended due to pinout and feature differences.
