Specification	EFM8SB20F32G-B-QFN32R

A/D Channels	23 count
A/D Resolution (bits)	10 bit
Connectivity	SPI, EMI, EBI, SMBus, I2C, UART, USART
Core Processor	CIP-51 8051
Core Size (Bit Width)	8 Bit
Mounting Type	Surface Mount
Number of I/O	24
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Oscillator Type	Internal
Package / Case	32-VFQFN Exposed Pad
Package Length	5 mm
Package Name	32-QFN
Package Width	5 mm
Peripherals	WDT, PWM, Brown-out Detect, POR, Reset
Program Memory Depth	32 K
Program Memory Size	32 KB
Program Memory Type	FLASH
Program Memory Width	8 bit
RAM Size Depth	4.25 K
RAM Size Width	8 bit
Speed	25 MHz
Voltage - Supply (Vcc/Vdd) Maximum	3.6 V
Voltage - Supply (Vcc/Vdd) Minimum	1.8 V

EFM8SB20 Series

Part	Core Processor	RAM Size Width	RAM Size Depth	Speed	Connectivity	Package Width	Package Name	Package Length	Mounting Type	Peripherals	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Package / Case	Program Memory Depth	Program Memory Width	Program Memory Size	Oscillator Type	Number of I/O	A/D Resolution (bits)	A/D Channels	Core Size (Bit Width)	Operating Temperature (Max)	Operating Temperature (Min)	Program Memory Type
SILICON LABS EFM8SB20F16G-B-QFN24	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	4 mm	24-QFN	4 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	24-WFQFN Exposed Pad	16 K	8 bit	16 KB	Internal	16	10 bit	15 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F64G-B-QFP32	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	7 mm	32-QFP	7 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	32-LQFP	64 K	8 bit	64 KB	Internal	24	10 bit	23 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F32G-B-QFN24R	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	4 mm	24-QFN	4 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	24-WFQFN Exposed Pad	32 K	8 bit	32 KB	Internal	16	10 bit	15 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F32G-B-QFN32R	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	5 mm	32-QFN	5 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	32-VFQFN Exposed Pad	32 K	8 bit	32 KB	Internal	24	10 bit	23 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F32G-A-QFP32R	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	7 mm	32-QFP	7 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	32-LQFP	32 K	8 bit	32 KB	Internal	24	10 bit	23 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F32G-B-QFN32	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	5 mm	32-QFN	5 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	32-VFQFN Exposed Pad	32 K	8 bit	32 KB	Internal	24	10 bit	23 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F32G-A-QFN24R	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	4 mm	24-QFN	4 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	24-WFQFN Exposed Pad	32 K	8 bit	32 KB	Internal	16	10 bit	15 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F32G-A-QFP32	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	7 mm	32-QFP	7 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	32-LQFP	32 K	8 bit	32 KB	Internal	24	10 bit	23 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F64G-B-QFN32R	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	5 mm	32-QFN	5 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	32-VFQFN Exposed Pad	64 K	8 bit	64 KB	Internal	24	10 bit	23 count	8 Bit	85 °C	-40 °C	FLASH
SILICON LABS EFM8SB20F32G-A-QFN32R	CIP-51 8051	8 bit	4.25 K	25 MHz	EBI EMI I2C SMBus SPI UART USART	5 mm	32-QFN	5 mm	Surface Mount	Brown-out Detect POR PWM Reset WDT	3.6 V	1.8 V	32-VFQFN Exposed Pad	32 K	8 bit	32 KB	Internal	24	10 bit	23 count	8 Bit	85 °C	-40 °C	FLASH

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EFM8SB20F32G-B-QFN32R | Datasheet