Page 27 - Silicon Labs Products - Embedded - Microcontrollers

EFM8BB31F64I-C-QFP32
Silicon Labs

IC MCU 8BIT 32QFP

Package: 32-TQFP

Stock5,952
EFM32HG108F32N-B-QFN24R
Silicon Labs

MCU CORTEX-M0+ 25 MHZ 32 KB

Package: 24-VQFN Exposed Pad

Stock4,224
EFM8BB31F64I-C-QFP32R
Silicon Labs

IC MCU 8BIT 32QFP

Package: 32-TQFP

Stock5,568
EFM32HG108F32G-C-QFN24R
Silicon Labs

ARM CORTEX-M0+ HAPPY GECKO MCU I

Package: 24-VQFN Exposed Pad

Stock3,616
EFM8BB31F64I-C-QSOP24R
Silicon Labs

IC MCU 8BIT 24QSOP

Package: 24-SSOP (0.154", 3.90mm Width)

Stock4,192
EFM8BB31F64I-C-QFN32R
Silicon Labs

IC MCU 8BIT 32QFN

Package: 32-UFQFN Exposed Pad

Stock5,968
EFM8LB12F32ES1-B-QFN24R
Silicon Labs

IC MCU 8BIT 32KB FLASH 24QFN

Package: 24-VFQFN Exposed Pad

Stock6,512
EFM8LB12F32ES1-C-QFN24R
Silicon Labs

IC MCU 8BIT 24QFN

Package: 24-VFQFN Exposed Pad

Stock3,216
EFM8LB12F32ES0-C-QFN24R
Silicon Labs

IC MCU 8BIT 24QFN

Package: 24-VFQFN Exposed Pad

Stock3,264
EFM8LB12F32E-C-QFN24R
Silicon Labs

IC MCU 8BIT 24QFN

Package: 24-VFQFN Exposed Pad

Stock7,968
EFM8LB11F32E-C-QFP32
Silicon Labs

IC MCU 8BIT 32QFP

Package: 32-TQFP

Stock3,168
EFM8LB11F32E-C-QFP32R
Silicon Labs

IC MCU 8BIT 24QFN

Package: 24-VFQFN Exposed Pad

Stock5,456
EFM8LB11F32E-C-QSOP24R
Silicon Labs

IC MCU 8BIT 24QSOP

Package: 24-SSOP (0.154", 3.90mm Width)

Stock7,744
EFM8BB31F64I-C-4QFN24R
Silicon Labs

IC MCU 8BIT 24QFN

Package: 24-WFQFN Exposed Pad

Stock2,128
EFM8LB12F32E-C-QSOP24
Silicon Labs

IC MCU 8BIT 24QSOP

Package: 24-SSOP (0.154", 3.90mm Width)

Stock5,664
EFM8BB31F64I-C-QFN24R
Silicon Labs

IC MCU 8BIT 24QFN

Package: 24-VFQFN Exposed Pad

Stock5,808
EFM8LB11F32ES1-C-QFN32R
Silicon Labs

IC MCU 8BIT 32QFN

Package: 32-UFQFN Exposed Pad

Stock6,976
EFM8LB11F32ES0-C-QFN32R
Silicon Labs

IC MCU 8BIT 32QFN

Package: 32-UFQFN Exposed Pad

Stock3,136
EFM8LB11F32E-C-QFN32R
Silicon Labs

IC MCU 8BIT 32QFN

Package: 32-UFQFN Exposed Pad

Stock6,304
EFM8LB11F32ES1-B-QFN32R
Silicon Labs

IC MCU 8BIT 32KB FLASH 32QFN

Package: 32-UFQFN Exposed Pad

Stock5,888

Part Number	Manufacturer	Description	Package	Stock	Core Size	Speed	Connectivity	Peripherals	Number of I/O	Program Memory Size	Program Memory Type	EEPROM Size	RAM Size	Voltage - Supply (Vcc/Vdd)	Data Converters	Oscillator Type	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
EFM8BB31F64I-C-QFP32	Silicon Labs	IC MCU 8BIT 32QFP Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 28 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x10/12b SAR; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 32-TQFP Supplier Device Package: 32-QFP (7x7)	Package: 32-TQFP	Stock5,952	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	28	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 20x10/12b SAR; D/A 4x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	32-TQFP	32-QFP (7x7)
EFM32HG108F32N-B-QFN24R	Silicon Labs	MCU CORTEX-M0+ 25 MHZ 32 KB Core Processor: ARM® Cortex®-M0+ Core Size: 32-Bit Speed: 25MHz Connectivity: I²C, IrDA, SmartCard, SPI, UART/USART Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT Number of I/O: 17 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4K x 8 Voltage - Supply (Vcc/Vdd): 1.98V ~ 3.8V Data Converters: A/D 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VQFN Exposed Pad Supplier Device Package: 24-QFN (5x5)	Package: 24-VQFN Exposed Pad	Stock4,224	32-Bit	25MHz	I²C, IrDA, SmartCard, SPI, UART/USART	Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT	17	32KB (32K x 8)	FLASH	-	4K x 8	1.98V ~ 3.8V	A/D 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VQFN Exposed Pad	24-QFN (5x5)
EFM8BB31F64I-C-QFP32R	Silicon Labs	IC MCU 8BIT 32QFP Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 28 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x10/12b SAR; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 32-TQFP Supplier Device Package: 32-QFP (7x7)	Package: 32-TQFP	Stock5,568	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	28	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 20x10/12b SAR; D/A 4x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	32-TQFP	32-QFP (7x7)
EFM32HG108F32G-C-QFN24R	Silicon Labs	ARM CORTEX-M0+ HAPPY GECKO MCU I Core Processor: ARM® Cortex®-M0+ Core Size: 32-Bit Speed: 25MHz Connectivity: I²C, IrDA, SmartCard, SPI, UART/USART Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT Number of I/O: 17 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4K x 8 Voltage - Supply (Vcc/Vdd): 1.98V ~ 3.8V Data Converters: A/D 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Package / Case: 24-VQFN Exposed Pad Supplier Device Package: 24-QFN (5x5)	Package: 24-VQFN Exposed Pad	Stock3,616	32-Bit	25MHz	I²C, IrDA, SmartCard, SPI, UART/USART	Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT	17	32KB (32K x 8)	FLASH	-	4K x 8	1.98V ~ 3.8V	A/D 4x12b	Internal	-40°C ~ 85°C (TA)	Surface Mount	24-VQFN Exposed Pad	24-QFN (5x5)
EFM8BB31F64I-C-QSOP24R	Silicon Labs	IC MCU 8BIT 24QSOP Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 21 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 13x10/12b SAR; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 24-SSOP (0.154", 3.90mm Width) Supplier Device Package: 24-QSOP	Package: 24-SSOP (0.154", 3.90mm Width)	Stock4,192	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	21	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 13x10/12b SAR; D/A 4x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-QSOP
EFM8BB31F64I-C-QFN32R	Silicon Labs	IC MCU 8BIT 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x10/12b SAR; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 32-UFQFN Exposed Pad Supplier Device Package: 32-QFN (4x4)	Package: 32-UFQFN Exposed Pad	Stock5,968	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 20x10/12b SAR; D/A 4x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	32-UFQFN Exposed Pad	32-QFN (4x4)
EFM8LB12F32ES1-B-QFN24R	Silicon Labs	IC MCU 8BIT 32KB FLASH 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock6,512	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB12F32ES1-C-QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock3,216	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB12F32ES0-C-QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock3,264	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB12F32E-C-QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock7,968	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB11F32E-C-QFP32	Silicon Labs	IC MCU 8BIT 32QFP Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 28 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 32-TQFP Supplier Device Package: 32-QFP (7x7)	Package: 32-TQFP	Stock3,168	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	28	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-TQFP	32-QFP (7x7)
EFM8LB11F32E-C-QFP32R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 28 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock5,456	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	28	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB11F32E-C-QSOP24R	Silicon Labs	IC MCU 8BIT 24QSOP Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 21 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 13x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-SSOP (0.154", 3.90mm Width) Supplier Device Package: 24-QSOP	Package: 24-SSOP (0.154", 3.90mm Width)	Stock7,744	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	21	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 13x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-QSOP
EFM8BB31F64I-C-4QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x10/12b SAR; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 24-WFQFN Exposed Pad Supplier Device Package: 24-QFN (4x4)	Package: 24-WFQFN Exposed Pad	Stock2,128	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 12x10/12b SAR; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	24-WFQFN Exposed Pad	24-QFN (4x4)
EFM8LB12F32E-C-QSOP24	Silicon Labs	IC MCU 8BIT 24QSOP Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 21 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 13x14b; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-SSOP (0.154", 3.90mm Width) Supplier Device Package: 24-QSOP	Package: 24-SSOP (0.154", 3.90mm Width)	Stock5,664	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	21	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 13x14b; D/A 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-QSOP
EFM8BB31F64I-C-QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x10/12b SAR; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock5,808	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 12x10/12b SAR; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB11F32ES1-C-QFN32R	Silicon Labs	IC MCU 8BIT 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 32-UFQFN Exposed Pad Supplier Device Package: 32-QFN (4x4)	Package: 32-UFQFN Exposed Pad	Stock6,976	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-UFQFN Exposed Pad	32-QFN (4x4)
EFM8LB11F32ES0-C-QFN32R	Silicon Labs	IC MCU 8BIT 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 32-UFQFN Exposed Pad Supplier Device Package: 32-QFN (4x4)	Package: 32-UFQFN Exposed Pad	Stock3,136	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-UFQFN Exposed Pad	32-QFN (4x4)
EFM8LB11F32E-C-QFN32R	Silicon Labs	IC MCU 8BIT 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 32-UFQFN Exposed Pad Supplier Device Package: 32-QFN (4x4)	Package: 32-UFQFN Exposed Pad	Stock6,304	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-UFQFN Exposed Pad	32-QFN (4x4)
EFM8LB11F32ES1-B-QFN32R	Silicon Labs	IC MCU 8BIT 32KB FLASH 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 32-UFQFN Exposed Pad Supplier Device Package: 32-QFN (4x4)	Package: 32-UFQFN Exposed Pad	Stock5,888	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-UFQFN Exposed Pad	32-QFN (4x4)
EFM8BB31F64I-C-5QFN32	Silicon Labs	IC MCU 8BIT 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x10/12b SAR; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 32-WFQFN Exposed Pad Supplier Device Package: 32-QFN (5x5)	Package: 32-WFQFN Exposed Pad	Stock2,816	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 20x10/12b SAR; D/A 4x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	32-WFQFN Exposed Pad	32-QFN (5x5)
EFM8BB31F64I-C-QSOP24	Silicon Labs	IC MCU 8BIT 24QSOP Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 50MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 21 Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 4.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 13x10/12b SAR; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 125°C (TA) Mounting Type: Surface Mount Package / Case: 24-SSOP (0.154", 3.90mm Width) Supplier Device Package: 24-QSOP	Package: 24-SSOP (0.154", 3.90mm Width)	Stock5,168	8-Bit	50MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	21	64KB (64K x 8)	FLASH	-	4.25K x 8	2.2V ~ 3.6V	A/D 13x10/12b SAR; D/A 4x12b	Internal	-40°C ~ 125°C (TA)	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-QSOP
EFM8LB11F32ES1-B-QFN24R	Silicon Labs	IC MCU 8BIT 32KB FLASH 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock4,144	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB11F32ES1-C-QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock2,608	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB11F32ES0-C-QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock3,392	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB11F32E-C-QFN24R	Silicon Labs	IC MCU 8BIT 24QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 20 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 12x14b; D/A 2x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 24-VFQFN Exposed Pad Supplier Device Package: 24-QFN (3x3)	Package: 24-VFQFN Exposed Pad	Stock7,440	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x14b; D/A 2x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	24-VFQFN Exposed Pad	24-QFN (3x3)
EFM8LB12F32ES1-C-QFN32	Silicon Labs	IC MCU 8BIT 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 32-UFQFN Exposed Pad Supplier Device Package: 32-QFN (4x4)	Package: 32-UFQFN Exposed Pad	Stock3,904	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-UFQFN Exposed Pad	32-QFN (4x4)
EFM8LB12F32ES0-C-QFN32	Silicon Labs	IC MCU 8BIT 32QFN Core Processor: CIP-51 8051 Core Size: 8-Bit Speed: 72MHz Connectivity: I²C, SMBus, SPI, UART/USART Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Number of I/O: 29 Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH EEPROM Size: - RAM Size: 2.25K x 8 Voltage - Supply (Vcc/Vdd): 2.2V ~ 3.6V Data Converters: A/D 20x14b; D/A 4x12b Oscillator Type: Internal Operating Temperature: -40°C ~ 105°C (TA) Mounting Type: Surface Mount Package / Case: 32-UFQFN Exposed Pad Supplier Device Package: 32-QFN (4x4)	Package: 32-UFQFN Exposed Pad	Stock4,128	8-Bit	72MHz	I²C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	32KB (32K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x14b; D/A 4x12b	Internal	-40°C ~ 105°C (TA)	Surface Mount	32-UFQFN Exposed Pad	32-QFN (4x4)