32-bit Microcontrollers

Our energy-friendly EFM32 microcontrollers (MCUs) are ideal for ultra-low power applications. Based on ARM^® Cortex^® -M0+, Cortex-M3 and Cortex-M4 cores, our 32-bit MCUs extend battery life for those "hard-to-reach", power-sensitive consumer and industrial applications. Engineered for low power and intelligent design, our MCUs have the ability to scale power consumption while still performing real-time embedded tasks.

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32-bit MCUs Select Columns

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	Core	Flash (kB)	RAM (kB)	Frequency	ADC	ADC 2	vDAC	SPI	UART	I2C	USART	16-bit Timers	32-bit Timers	Cryptography	Packages	VDD (Min)	Vdd (Max)
FEATURED Tiny Gecko S1 EFM32 Tiny Gecko 32-bit S1 Microcontrollers	ARM Cortex-M0+	64, 128	32	48	12-bit, 17-ch., 1 Msps, 12-bit, 18-ch., 1 Msps, 12-bit, 22-ch., 1 Msps, 12-bit, 30-ch., 1 Msps, 12-bit, 33-ch., 1 Msps, 12-bit, 36-ch., 1 Msps, 12-bit, 40-ch., 1 Msps, 12-bit, 41-ch., 1 Msps, 12-bit, 43-ch., 1 Msps, 12-bit, 44-ch., 1 Msps, 12-bit, 46-ch., 1 Msps	—	2x 12-bit, 2 ch.	4	1	2	4	2	2	AES-128 AES-256 ECC SHA-1 SHA-2 TRNG	QFN32, QFN64, QFN80, QFP48, QFP64, QFP80	1.8	3.8
Giant Gecko S1 EFM32 Giant Gecko 32-bit S1 Microcontrollers	ARM Cortex-M4	512, 1024, 2048	192, 384, 512	72	12-bit, 1000 ksps	12-bit, 1000 ksps	12-bit, 500 ksps	5, 6	2	2, 3	5, 6	4, 7	4	AES-128 AES-256 ECC SHA-1 SHA-2 RSA-2048 TRNG	BGA112, BGA120, BGA152, BGA192, QFN64, QFP100, QFP64	1.8	3.8
Jade Gecko EFM32 Jade Gecko 32-bit Microcontrollers	ARM Cortex-M3	128, 256, 1024	32, 256	40	12-bit, 20-ch., 1 Msps, 12-bit, 24-ch., 1 Msps, 12-bit, 33-ch., 1 Msps, 12-bit, 54-ch., 1 Msps	—	2x 12-bit, 33-ch., 500 ksps, 2x 12-bit, 54-ch., 500 ksps, —	2, 4	0	1, 2	2, 4	2	0, 2	AES-128 AES-256 ECC SHA-1 SHA-2 TRNG	BGA125, QFN32, QFN48	1.8, 1.85	3.8
Pearl Gecko EFM32 Pearl Gecko 32-bit Microcontrollers	ARM Cortex-M4	128, 256, 1024	32, 256	40	12-bit, 20-ch., 1 Msps, 12-bit, 24-ch., 1 Msps, 12-bit, 33-ch., 1 Msps, 12-bit, 54-ch., 1 Msps	—	2x 12-bit, 33-ch., 500 ksps, 2x 12-bit, 54-ch., 500 ksps, —	2, 4	0	1, 2	2, 4	2	0, 2	AES-128 AES-256 ECC SHA-1 SHA-2 TRNG	BGA125, QFN32, QFN48	1.8, 1.85	3.8
Zero Gecko EFM32 Zero Gecko 32-bit Microcontrollers	ARM Cortex-M0+	4, 8, 16, 32	2, 4	24	12-bit, 2-ch., 1 Msps, 12-bit, 4-ch., 1 Msps, —	—	—	1	2	1	1	2	0	AES-128	QFN24, QFN32, QFP48	1.98	3.8
Happy Gecko EFM32 Happy Gecko USB-enabled 32-bit Microcontrollers	ARM Cortex-M0+	32, 64	4, 8	25	12-bit, 2-ch., 1 Msps, 12-bit, 4-ch., 1 Msps, —	—	—	2	3	1	2	3	0	AES-128	CSP36, QFN24, QFN32, QFP48	1.98	3.8
Wonder Gecko EFM32 Wonder Gecko 32-bit Microcontrollers	ARM Cortex-M4	64, 128, 256	32	48	12-bit, 8-ch., 1 Msps	—	12-bit, 2 ch.	3	5, 7	2	3	4	1	AES-128 AES-256	BGA112, BGA120, CSP81, QFN64, QFP100, QFP64	1.98	3.8
Leopard Gecko EFM32 Leopard Gecko 32-bit Microcontrollers	ARM Cortex-M3	64, 128, 256	32	48	12-bit, 8-ch., 1 Msps	—	12-bit, 2 ch.	3	5, 7	2	3	4	1	AES-128 AES-256	BGA112, BGA120, CSP81, QFN64, QFP100, QFP64	1.98	3.8
Giant Gecko EFM32 Giant Gecko 32-bit Microcontrollers	ARM Cortex-M3	512, 1024	128	48	12-bit, 8-ch., 1 Msps	—	12-bit, 2 ch.	3	5, 7	2	3	4	0	AES-128 AES-256	BGA112, BGA120, QFN64, QFP100, QFP64	1.98	3.8
Tiny Gecko EFM32 Tiny Gecko 32-bit Microcontrollers	ARM Cortex-M3	4, 8, 16, 32	2, 4	32	12-bit, 2-ch., 1 Msps, 12-bit, 4-ch., 1 Msps, 12-bit, 8-ch., 1 Msps, —	—	12-bit, 12-bit, 2 ch.	1, 2	2, 3	1	1, 2	2	0	AES-128 AES-256	BGA48, QFN24, QFN32, QFN64, QFP48, QFP64	1.98	3.8
Gecko EFM32 Gecko 32-bit Microcontrollers	ARM Cortex-M3	16, 32, 64, 128	8, 16	32	12-bit, 4-ch., 1 Msps, 12-bit, 8-ch., 1 Msps	—	12-bit, 1-ch., 12-bit, 2 ch.	2, 3	0, 1	1	2, 3	2, 3	0	AES-128 AES-256	BGA112, QFN32, QFN64, QFP100, QFP48, QFP64	1.98	3.8
SiM3C1xx SiM3C1xx 32-bit Microcontrollers	ARM Cortex-M3	32, 64, 128, 256	8, 16, 32	80	12-bit, 13-ch., 250 ksps, 12-bit, 16-ch., 250 ksps, 12-bit, 7-ch., 250 ksps	12-bit, 11-ch., 250 ksps, 12-bit, 15-ch., 250 ksps, 12-bit, 16-ch., 250 ksps	10-bit, 2-ch.	3	4	2	0	5	1		LGA92, QFN40, QFN64, TQFP64, TQFP80	1.8	5.5
SiM3L1xx SiM3L1xx Low Power MCUs	ARM Cortex-M3	32, 64, 128, 256	8, 16, 32	50	12-bit, 20-ch., 250 ksps, 12-bit, 23-ch., 250 ksps, 12-bit, 24-ch., 250 ksps	—	—	2	2	1	1	3	2		QFN40, QFN64, TQFP64, TQFP80	1.8	3.8
SiM3U1xx SiM3U1xx USB MCUs	ARM Cortex-M3	32, 64, 128, 256	8, 16, 32	80	12-bit, 13-ch., 250 ksps, 12-bit, 16-ch., 250 ksps, 12-bit, 7-ch., 250 ksps	12-bit, 11-ch., 250 ksps, 12-bit, 15-ch., 250 ksps, 12-bit, 16-ch., 250 ksps	10-bit, 2-ch.	3	2	2	2	1	1		LGA92, QFN40, QFN64, TQFP64, TQFP80	1.8	5.5

Metering

Using EFM32's intelligent energy modes to prolong battery life of electric, gas, and water meters

Metering

Using EFM32's intelligent energy modes to prolong battery life of electric, gas, and water meters

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Industrial Automation

Industrial environments require solutions that deliver on safety, performance, and cost

Industrial Automation

Industrial environments require solutions that deliver on safety, performance, and cost

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Smart Home

Low power operation of EFM32 for use in battery powered smart home devices

Smart Home

Low power operation of EFM32 for use in battery powered smart home devices

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Smart Lighting

Smart lighting saves power and gives consumers greater control over their environment. Let us help you develop smart, connected solutions for this growing market.

Smart Lighting

Smart lighting saves power and gives consumers greater control over their environment. Let us help you develop smart, connected solutions for this growing market.

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Door Locks

Bring the latest innovations in sensing, connectivity, and embedded computing to your smart home security systems and deliver simplicity, convenience, and peace of mind.

Door Locks

Bring the latest innovations in sensing, connectivity, and embedded computing to your smart home security systems and deliver simplicity, convenience, and peace of mind.

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Battery Operation

Integrate peripherals, include rich displays and perform complex computations while meeting the power budget of your system by using energy-friendly MCUs.

Battery Operation

Integrate peripherals, include rich displays and perform complex computations while meeting the power budget of your system by using energy-friendly MCUs.

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Kits and Boards

32-bit MCU Kits & Boards

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Software and Tools

32-bit Software Development

Simplicity Studio is the core development environment designed to support the Silicon Labs IoT portfolio of SoCs and modules. It provides access to target device-specific web and SDK resources in the Launcher; software and hardware configuration tools; an integrated development environment (IDE) featuring industry-standard code editors, compilers and debuggers; and advanced, value-add tools for network analysis and code-correlated energy profiling.

Simplicity Studio		Simplicity Studio is designed to make the development process easier, faster, and more efficient by providing designers with everything they need to complete their projects from initial concept to final product. The Simplicity Studio platform provides unified development support for 32-bit SoCs, complete with wireless stacks.
Precision32 32-bit Microcontroller Development Suite		Silicon Labs offers advanced software development tools, available at no charge to developers. These tools unlock the power and flexibility of the Precision32™ 32-bit microcontroller family.

Resources

32-bit MCU Technical Library

Access to Data Sheets, App Notes, and more.

32-bit MCU Training

Find all 32-bit training resources

32-bit API Documentation

Find all 32-bit API documentation

EFM32 Giant Gecko S1, GG11 Starter Kit

The SLSTK3701A starter kit contains sensors and peripherals demonstrating some of the MCU's many capabilities and can serve as a starting point for application development.

EFM32 Giant Gecko S1, GG11 Starter Kit

The SLSTK3701A starter kit contains sensors and peripherals demonstrating some of the MCU's many capabilities and can serve as a starting point for application development.

MSRP $99.00

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32-bit Microcontrollers

Devices

Kits and Boards

Software and Tools

Devices

Kits and Boards

Software and Tools

32-bit Software Development

Resources

32-bit MCU Technical Library

32-bit MCU Training

32-bit API Documentation

EFM32 Giant Gecko S1, GG11 Starter Kit

EFM32 Giant Gecko S1, GG11 Starter Kit

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