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Advancing the IoT

Silicon Labs’ Wireless Gecko Series 2 platform is designed to make IoT products more powerful, efficient and reliable. The first wave of Series 2 devices are small form-factor SoCs with a dedicated security core and serve line-powered IoT applications including connected lighting, hubs and gateways, metering, and smart speakers.

Wireless Gecko Series 2

Build Next-Generation Connected Products Now

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Taking Advantage of a Multiprotocol SoC Enables Flexible, Robust IoT Connectivity

Series 2 Enhanced Security

  • Dedicated Hardware Core
    • Faster, more energy efficient hardware encryption
    • A TRNG that is compliant with NIST SP 800-90A/B/C and AIS-31
    • Secure Debug control helps prevent unauthorized access to end products
  • Secure Boot
    • Ensures authentic firmware and OTA updates

Simplifying Wireless Designs with a Highly Integrated SoCs

  • Best-in-class RF with +20 dBm output power and up to +124.5 dB link budget
  • Powerful processing with an 80 MHz Arm® Cortex®-M33 core with TrustZone technology
  • Industry’s smallest multiprotocol SoCs in a 4 mm x 4 mm QFN package
  • Lower BOM count with fewer matching components and no need for external inductors or power amplifiers

One Kit to Rule Them All

Use the universal wireless starter kit and interchangeable radio boards with both EFR32MG21 Series 2 and EFR32BG21 Series 2.

The Linley Group Microprocessor Report: Silicon Labs Upgrades Wireless MCUs

The Linley Group determined Silicon Labs' EFR32 Series 2 chips improve performance and IoT security

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EFR32BG21 Series 2 Product Matrix for Bluetooth

Status
Devices
Part Number Data Sheet Kit MCU Core Frequency (MHz) Flash RAM Cryptography Output Power Range (dBm) Receive Sensitivity GPIO RX Current (mA) TX Current (mA @ 0 dBm) UART USART LEUART I²C SPI I²S ADC Comparators DAC Timers (16-bit) Temperature Range ºC Package Type Package Size Bluetooth 5.1 Bluetooth Mesh
EFR32BG21A010F1024IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 1024 96 AES-256 ECC SHA-1 SHA-2 -20 10 -97 (1 Mbit/s GFSK) 20 8.7 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Yes Yes
EFR32BG21A010F512IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 512 64 AES-256 ECC SHA-1 SHA-2 -20 10 -97 (1 Mbit/s GFSK) 20 8.7 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Yes Yes
EFR32BG21A010F768IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 768 64 AES-256 ECC SHA-1 SHA-2 -20 10 -97 (1 Mbit/s GFSK) 20 8.7 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Yes Yes
EFR32BG21A020F1024IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 1024 96 AES-256 ECC SHA-1 SHA-2 -20 20 -97 (1 Mbit/s GFSK) 20 8.7 0 3 3 0 2 3 2 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Yes Yes
EFR32BG21A020F512IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 512 64 AES-256 ECC SHA-1 SHA-2 -20 20 -97 (1 Mbit/s GFSK) 20 8.7 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Yes Yes
EFR32BG21A020F768IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 768 64 AES-256 ECC SHA-1 SHA-2 -20 20 -97 (1 Mbit/s GFSK) 20 8.7 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Yes Yes

EFR32MG21 Series 2 Product Matrix for Zigbee, Thread, and Multiprotocol

Status
Devices
Part Number Data Sheet Kit MCU Core Frequency (MHz) Flash RAM Cryptography Output Power Range (dBm) Receive Sensitivity GPIO RX Current (mA) TX Current (mA @ 0 dBm) UART USART LEUART I²C SPI I²S ADC Comparators DAC Timers (16-bit) Temperature Range ºC Package Type Package Size Wireless Standards Multiprotocol
EFR32MG21A010F1024IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 1024 96 AES-256 ECC SHA-1 SHA-2 -20 10 -104 (250 kbps O-QPSK DSSS) 20 9.4 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Bluetooth Thread Zigbee Dynamic Switched Programmable
EFR32MG21A010F512IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 512 64 AES-256 ECC SHA-1 SHA-2 -20 10 -104 (250 kbps O-QPSK DSSS) 20 9.4 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Bluetooth Thread Zigbee Dynamic Switched Programmable
EFR32MG21A010F768IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 768 64 AES-256 ECC SHA-1 SHA-2 -20 10 -104 (250 kbps O-QPSK DSSS) 20 9.4 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Bluetooth Thread Zigbee Dynamic Switched Programmable
EFR32MG21A020F1024IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 1024 96 AES-256 ECC SHA-1 SHA-2 -20 20 -104 (250 kbps O-QPSK DSSS) 20 9.4 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Bluetooth Thread Zigbee Dynamic Switched Programmable
EFR32MG21A020F512IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 512 64 AES-256 ECC SHA-1 SHA-2 -20 20 -104 (250 kbps O-QPSK DSSS) 20 9.4 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Bluetooth Thread Zigbee Dynamic Switched Programmable
EFR32MG21A020F768IM32
Buy  |  Sample
SLWSTK6023A EFR32xG21 Bluetooth Starter Kit ARM Cortex-M33 80 768 64 AES-256 ECC SHA-1 SHA-2 -20 20 -104 (250 kbps O-QPSK DSSS) 20 9.4 0 3 3 0 2 3 3 12-bit, SAR, 1 Msps 2 — 7 -40 125 QFN32 4x4 Bluetooth Thread Zigbee Dynamic Switched Programmable

The Silicon Labs Advantage

Expertise

20+ years providing RF solutions with more than 1 billion deployed wireless nodes worldwide

Security

Providing enhanced security features that help developers increase consumer trust in connected products

Platform

Simplifying IoT product design with highly-integrated devices, reusable software and advanced development tools

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