Part: EFR32MG24B210F1536IM48 — Silicon Labs

Type: Wireless System-on-Chip (SoC) on a Radio Board

Description: A 2.4 GHz wireless SoC with an ARM Cortex-M33 core, 1536 kB Flash, 256 kB RAM, and 10 dBm transmit power, integrated on a radio board with a PCB antenna and UFL connector.

Operating Conditions:

• Supply voltage: 3.3 V (VMCU), 1.8 V (PAVDD)
• Operation frequency: 2.4 GHz
• Transmit power: 10 dBm

Absolute Maximum Ratings:

• Max supply voltage: null
• Max continuous current: null
• Max junction/storage temperature: null

Key Specs:

• CPU core: ARM Cortex-M33
• Flash memory: 1536 kB
• RAM: 256 kB
• Operation frequency: 2.4 GHz
• Transmit power: 10 dBm
• HFXO crystal frequency: 39 MHz
• LFXO crystal frequency: 32.768 kHz
• External serial flash: 8 Mbit

Features:

• Integrated PCB antenna
• UFL connector for conducted measurements or external antenna
• Matching network optimized for 2.4 GHz band and 10 dBm output power
• 8 Mbit low-power serial flash for over-the-air updates
• Serial I2C EEPROM for board identification
• Compatible with Wireless Starter Kit Mainboard (BRD4001A) and Wireless Gecko Pro Kit Mainboard (BRD4002A)

Applications:

• Smart home
• Lighting
• Building automation
• AI/ML applications

Package:

• Radio Board (BRD4186C)

• Wireless SoC: EFR32MG24B210F1536IM48
• CPU core: ARM ® Cortex ® -M33
• Flash memory: 1536 kB
• RAM: 256 kB
• Operation frequency: 2.4 GHz
• Transmit power: 10 dBm
• Integrated PCB antenna, UFL connector (optional)
• Crystals for LFXO and HFXO: 32.768 kHz and 39 MHz
• 8 Mbit low-power serial flash for over-theair updates

EFR32MG24B210F1536IM48-B — QFN48 Pinout

Pin	Name	Type	Description
1	PC01	I/O	GPIO Port C, Pin 1 / DISP_SI
2	PC02	I/O	GPIO Port C, Pin 2 / DISP_SCLK
3	PC03	I/O	GPIO Port C, Pin 3 / DISP_SCLK
4	PD00	I/O	GPIO Port D, Pin 0 / PTI_DATA
5	PD01	I/O	GPIO Port D, Pin 1 / PTI_SYNC
6	PD02	I/O	GPIO Port D, Pin 2 / JOYSTICK*
7	PD03	I/O	GPIO Port D, Pin 3 / DBG_TDI / TRACECLK
8	PD04	I/O	GPIO Port D, Pin 4 / DBG_TDO_SWO / TRACED0
9	PD05	I/O	GPIO Port D, Pin 5 / PTI_SYNC
10	PD06	I/O	GPIO Port D, Pin 6 / TRACED1
11	PA00	I/O	GPIO Port A, Pin 0 / VCOM_RTS
12	PA01	I/O	GPIO Port A, Pin 1 / DBG_TCK_SWCLK
13	PA02	I/O	GPIO Port A, Pin 2 / DBG_TDI / TRACECLK
14	PA03	I/O	GPIO Port A, Pin 3 / DBG_TMS_SWDIO / TRACED0
15	PA04	I/O	GPIO Port A, Pin 4 / DBG_RESET / RESETn
16	PA05	I/O	GPIO Port A, Pin 5 / TRACED1
17	PA06	I/O	GPIO Port A, Pin 6 / TRACED3
18	PA07	I/O	GPIO Port A, Pin 7 / TRACED3
19	PB00	I/O	GPIO Port B, Pin 0 / VCOM_ENABLE
20	PB01	I/O	GPIO Port B, Pin 1 / UIF_BUTTON0
21	PB02	I/O	GPIO Port B, Pin 2 / UIF_LED0
22	PB03	I/O	GPIO Port B, Pin 3 / UIF_BUTTON1
23	PB04	I/O	GPIO Port B, Pin 4 / UIF_LED1
24	PB05	I/O	GPIO Port B, Pin 5 / VCOM_CTS
25	GND	P	Ground
26	VMCU_IN	P	MCU Supply Voltage Input (3.3V)
27	NC	—	No Connect
28	NC	—	No Connect
29	PC09	I/O	GPIO Port C, Pin 9 / DISP_ENABLE
30	PC08	I/O	GPIO Port C, Pin 8 / DISP_SCS
31	PC06	I/O	GPIO Port C, Pin 6 / DISP_EXTCOMIN
32	PC04	I/O	GPIO Port C, Pin 4 / VRF_IN
33	GND	P	Ground
34	VRF_IN	P	RF Supply Voltage Input
35	NC	—	No Connect
36	NC	—	No Connect
37	NC	—	No Connect
38	P36	I/O	GPIO Port P, Pin 36 / NC
39	P38	I/O	GPIO Port P, Pin 38 / TIC
40	P40	I/O	GPIO Port P, Pin 40 / P40
41	P41	I/O	GPIO Port P, Pin 41 / PA04 / DBG_TDI / TRACECLK
42	P43	I/O	GPIO Port P, Pin 43 / PA05 / TRACED1
43	P45	I/O	GPIO Port P, Pin 45 / PA07 / TRACED3
44	F1	I/O	GPIO Port F, Pin 1 / PA01 / DBG_TCK_SWCLK
45	F3	I/O	GPIO Port F, Pin 3 / PB00 / VCOM_ENABLE
46	F7	I/O	GPIO Port F, Pin 7 / PA09 / VCOM_RX
47	F9	I/O	GPIO Port F, Pin 9 / PA00 / VCOM_RTS
48	F11	I/O	GPIO Port F, Pin 11 / PB04 / UIF_LED1

Notes

• Package: QFN48 (7×7 mm)
• Pin numbering: Derived from the connector pin mapping diagram (P200 Upper Row and P201 Lower Row) showing the EFR32MG24B210F1536IM48 GPIO assignments to the BRD4186C Radio Board connectors.
• Mutually exclusive connections: PD02 and P06 are mutually exclusive (default: PD02). See diagram note: "*Mutually exclusive connections. Default: PD02 to P6."
• NC pins: Pins 27, 28, 35, 36, 37 are marked as No Connect in the source material.
• Power pins: VMCU_IN (Pin 26) supplies 3.3V to the MCU; VRF_IN (Pin 34) supplies RF section voltage.
• GND pins: Pins 25 and 33 are ground connections.

MPN	Package	Temperature Range	Packing
EFR32MG24B210F1536IM48	M48	Industrial	N/A