Specification	EFM32HG222F32G-B-QFP48

Connectivity	IrDA, SmartCard, I2C, UART/USART, SPI
Core Processor	ARM® Cortex®-M0+
Core Size	32-Bit Single-Core, 32-Bit
Data Converters	A/D 4x12b
Mounting Type	Surface Mount
Number of I/O	37
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Oscillator Type	Internal
Package / Case	48-TQFP
Peripherals	POR, WDT, PWM, Brown-out Detect/Reset, DMA, I2S
Program Memory Size	32 KB
Program Memory Type	FLASH
RAM Size	4K x 8
Speed	25 MHz
Supplier Device Package	48-TQFP (7x7)
Voltage - Supply (Vcc/Vdd) [Max]	3.8 V
Voltage - Supply (Vcc/Vdd) [Min]	1.98 V

happy-gecko Series

Part	Core Size	Peripherals	Core Processor	RAM Size	Oscillator Type	Package / Case	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Data Converters	Program Memory Size	Number of I/O	Connectivity	Speed	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Program Memory Type	RAM Size
SILICON LABS EFM32HG322F32G-B-QFP48	32-Bit 32-Bit Single-Core	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	48-TQFP	48-TQFP (7x7)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	32 KB	35	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG309F32G-B-QFN24	32-Bit 32-Bit Single-Core	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	24-VQFN Exposed Pad	24-QFN (5x5)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	32 KB	15	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG321F32G-B-QFP48	32-Bit 32-Bit Single-Core	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	48-TQFP	48-TQFP (7x7)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	32 KB	35	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG350F64G-B-CSP36	32-Bit	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	36-UFBGA CSPBGA	36-CSP (3.02x2.89)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	64 KB	22	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG310F32G-B-QFN32	32-Bit 32-Bit Single-Core	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	32-VQFN Exposed Pad	32-QFN (6x6)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	32 KB	22	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG322F64G-B-QFP48	32-Bit	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	48-TQFP	48-TQFP (7x7)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	64 KB	35	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG308F64G-B-QFN24	32-Bit	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	24-VQFN Exposed Pad	24-QFN (5x5)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	64 KB	15	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG108F64G-B-QFN24	32-Bit 32-Bit Single-Core	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	24-VQFN Exposed Pad	24-QFN (5x5)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	64 KB	17	I2C IrDA SmartCard SPI UART/USART	25 MHz	3.8 V	1.98 V	FLASH
SILICON LABS EFM32HG222F32G-B-QFP48	32-Bit 32-Bit Single-Core	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+		Internal	48-TQFP	48-TQFP (7x7)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	32 KB	37	I2C IrDA SmartCard SPI UART/USART	25 MHz	3.8 V	1.98 V	FLASH	4K x 8
SILICON LABS EFM32HG308F32G-B-QFN24	32-Bit	Brown-out Detect/Reset DMA I2S POR PWM WDT	ARM® Cortex®-M0+	8 K	Internal	24-VQFN Exposed Pad	24-QFN (5x5)	85 C	-40 ¯C	Surface Mount	A/D 4x12b	32 KB	15	I2C IrDA SmartCard SPI UART/USART USB	25 MHz	3.8 V	1.98 V	FLASH