Specification	EFM8UB31F40G-A-QSOP24

A/D Channels	16 count
A/D Resolution (bits)	12 bit
Connectivity	USART, SPI, UART, I2C, SMBus, USB
Core Processor	CIP-51 8051
Core Size (Bit Width)	8 Bit
Mounting Type	Surface Mount
Number of I/O	17
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Oscillator Type	Internal
Package Length	0.154 in
Package Name	24-QSOP, 24-SSOP
Package Width	3.9 mm
Peripherals	WDT, PWM, Brown-out Detect, POR, Reset
Program Memory Depth	40 K
Program Memory Size	40 KB
Program Memory Type	FLASH
Program Memory Width	8 bit
RAM Size Depth	3.25 K
RAM Size Width	8 bit
Speed	48 MHz
Voltage - Supply (Vcc/Vdd) Maximum	5.5 V
Voltage - Supply (Vcc/Vdd) Minimum	1.71 V

EFM8UB31 Series

Part	Package Width	Package Name	Package Length	Program Memory Type	Connectivity	Speed	RAM Size Width	RAM Size Depth	Number of I/O	Peripherals	Mounting Type	A/D Resolution (bits)	A/D Channels	Voltage - Supply (Vcc/Vdd) Maximum	Voltage - Supply (Vcc/Vdd) Minimum	Core Processor	Oscillator Type	Program Memory Size	Program Memory Width	Program Memory Depth	Core Size (Bit Width)	Operating Temperature (Max)	Operating Temperature (Min)
SILICON LABS EFM8UB31F40G-A-QSOP24R	3.9 mm	24-QSOP 24-SSOP	0.154 in	FLASH	I2C SMBus SPI UART USART USB	48 MHz	8 bit	3.25 K	17	Brown-out Detect POR PWM Reset WDT	Surface Mount	12 bit	16 count	5.5 V	1.71 V	CIP-51 8051	Internal	40 KB	8 bit	40 K	8 Bit	85 °C	-40 °C
SILICON LABS EFM8UB31F40G-A-QSOP24	3.9 mm	24-QSOP 24-SSOP	0.154 in	FLASH	I2C SMBus SPI UART USART USB	48 MHz	8 bit	3.25 K	17	Brown-out Detect POR PWM Reset WDT	Surface Mount	12 bit	16 count	5.5 V	1.71 V	CIP-51 8051	Internal	40 KB	8 bit	40 K	8 Bit	85 °C	-40 °C

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