Reference Manual

BRD4502B (Rev. B00)

The EZR32LG family of Wireless MCUs deliver a high performance, low energy wireless solution inte-

grated into a small form factor package. By combining a high performance sub-GHz RF transceiver

with an energy efficient 32-bit MCU, the family provides designers the ultimate in flexibility with a fam-

ily of pin-compatible devices that scale from 64/128/256 kB of flash and support Silicon Labs EZRadio

or EZRadioPRO transceivers. The ultra-low power operating modes and fast wake-up times of the

Silicon Labs energy friendly 32-bit MCUs, combined with the low transmit and receive power con-

sumption of the sub-GHz radio, result in a solution optimized for battery powered applications.

To develop and/or evaluate the EZR32 Leopard Gecko the EZR32LG Radio Board can

be connected to the Wireless Starter Kit Mainboard to get access to display, buttons and

additional features from Expansion Boards.

RADIO BOARD FEATURES

• Wireless MCU: EZR32LG330F256R55G

• CPU core: ARM Cortex-M3

• Flash memory: 256 kB

• RAM: 32 kB

• Sub-GHz transceiver integrated in the

Wireless MCU: EZRadioPRO

• Operation frequency: 434 MHz

• Transmit power: 10 dBm

• Single antenna connector both for transmit

and receive

• Crystals for LFXO and HFXO: 32.768kHz

and 48 MHz.

• Crystal for RF: 30 MHz

• Backup Power Domain Capacitor

• Full speed USB 2.0 (12 Mbps)

silabs.com | Smart. Connected. Energy-friendly.

Rev. 1.10