Microcontrollers

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Mfr Part #	Quantity Available	Price	Tariff Status	Series	Package	Product Status	DigiKey Programmable	Core Processor	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	Grade	Qualification	Mounting Type	Supplier Device Package	Package / Case
EFM8BB51F16I-C-QFN20R IC MCU 8BIT 16KB FLASH 20QFN Silicon Labs	8,813 In Stock	1 : $0.82000 Cut Tape (CT) 2,500 : $0.45983 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	16KB (16K x 8)	FLASH	-	1.25K x 8	1.8V ~ 5.5V	A/D 16x12b SAR	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB10F8G-A-QFN20R IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	34,464 In Stock	1 : $1.01000 Cut Tape (CT) 1,500 : $0.50000 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	8KB (8K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-UFQFN Exposed Pad
EFM8BB21F16G-C-QFN20R IC MCU 8BIT 16KB FLASH 20QFN Silicon Labs	3,624 In Stock	1 : $1.29000 Cut Tape (CT) 1,500 : $0.74698 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB21F16I-C-QFN20R IC MCU 8BIT 16KB FLASH 20QFN Silicon Labs	6,598 In Stock	1 : $1.38000 Cut Tape (CT) 1,500 : $0.80080 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB31F64G-D-QFN32 IC MCU 8BIT 64KB FLASH 32QFN Silicon Labs	9,528 In Stock	1 : $2.30000 Tray	-	Busy Bee	Tray	Active	Not Verified	CIP-51 8051	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 20x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-QFN (4x4)	32-UFQFN Exposed Pad
EFM8BB31F64G-D-QFP32 IC MCU 8BIT 64KB FLASH 32QFP Silicon Labs	295 In Stock	1 : $2.65000 Tray	-	Busy Bee	Tray	Active	Not Verified	CIP-51 8051	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 20x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-QFP (7x7)	32-TQFP
EFM8BB10F8G-A-SOIC16R IC MCU 8BIT 8KB FLASH 16SOIC Silicon Labs	8,998 In Stock	1 : $1.01000 Cut Tape (CT) 2,500 : $0.56708 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	13	8KB (8K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	A/D 12x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	16-SOIC	16-SOIC (0.154", 3.90mm Width)
EFM8BB10F8G-A-SOIC16 IC MCU 8BIT 8KB FLASH 16SOIC Silicon Labs	2,965 In Stock	1 : $1.01000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	13	8KB (8K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	A/D 12x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	16-SOIC	16-SOIC (0.154", 3.90mm Width)
EFM8BB10F8G-A-QFN20 IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	1,963 In Stock	1 : $1.01000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	8KB (8K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-UFQFN Exposed Pad
EFM8BB10F8I-A-QFN20 IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	2,379 In Stock	1 : $1.12000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	8KB (8K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB21F16G-C-QFN20 IC MCU 8BIT 16KB FLASH 20QFN Silicon Labs	1,985 In Stock	1 : $1.29000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-UFQFN Exposed Pad
EFM8BB21F16I-C-QFN20 IC MCU 8BIT 16KB FLASH 20QFN Silicon Labs	2,375 In Stock	1 : $1.38000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB31F16G-D-QFN32R IC MCU 8BIT 16KB FLASH 32QFN Silicon Labs	7,307 In Stock	1 : $1.54000 Cut Tape (CT) 2,500 : $0.87051 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-QFN (4x4)	32-UFQFN Exposed Pad
EFM8BB31F16G-D-QFN32 IC MCU 8BIT 16KB FLASH 32QFN Silicon Labs	488 In Stock	1 : $1.54000 Tray	-	Busy Bee	Tray	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-QFN (4x4)	32-UFQFN Exposed Pad
EFM8BB22F16G-C-QFN28R IC MCU 8BIT 16KB FLASH 28QFN Silicon Labs	4,000 In Stock	1 : $1.68000 Cut Tape (CT) 1,500 : $0.97449 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	22	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	28-QFN (5x5)	28-WFQFN Exposed Pad
EFM8BB10F2G-A-QFN20R IC MCU 8BIT 2KB FLASH 20QFN Silicon Labs	28,196 In Stock	Active	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	2KB (2K x 8)	FLASH	-	256 x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-UFQFN Exposed Pad
EFM8BB51F8G-C-QFN20R IC MCU 8BIT 8KB FLASH 20QFN Silicon Labs	2,579 In Stock	Active	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	8KB (8K x 8)	FLASH	-	1.25K x 8	1.8V ~ 5.5V	A/D 16x12b SAR	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB52F32G-C-QFN32R IC MCU 8BIT 32KB FLASH 32QFN Silicon Labs	1,883 In Stock	Active	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	29	32KB (32K x 8)	FLASH	-	2.25K x 8	1.8V ~ 5.5V	A/D 16x12b SAR; D/A 1x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-QFN (5x5)	32-WFQFN Exposed Pad
EFM8BB10F2I-A-QFN20 IC MCU 8BIT 2KB FLASH 20QFN Silicon Labs	1,750 In Stock	1 : $0.74000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	2KB (2K x 8)	FLASH	-	256 x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB52F32G-C-QFN20R IC MCU 8BIT 32KB FLASH 20QFN Silicon Labs	1,552 In Stock	1 : $0.82000 Cut Tape (CT) 2,500 : $0.45983 Tape & Reel (TR)	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	32KB (32K x 8)	FLASH	-	2.25K x 8	1.8V ~ 5.5V	A/D 16x12b SAR; D/A 1x10b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB52F32I-C-TSSOP28 IC MCU 8BIT 32KB FLASH 28TSSOP Silicon Labs	231 In Stock	1 : $1.03000 Strip	-	Busy Bee	Strip	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	25	32KB (32K x 8)	FLASH	-	2.25K x 8	1.8V ~ 5.5V	A/D 16x12b SAR; D/A 1x10b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	28-TSSOP	28-TSSOP (0.173", 4.40mm Width)
EFM8BB22F16G-C-QFN28 IC MCU 8BIT 16KB FLASH 28QFN Silicon Labs	992 In Stock	1 : $1.68000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	22	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 20x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	28-QFN (5x5)	28-WFQFN Exposed Pad
EFM8BB21F16A-C-QFN20 IC MCU 8BIT 16KB FLASH 20QFN Silicon Labs	2,523 In Stock	1 : $2.71000 Tube	-	Busy Bee	Tube	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 125°C (TA)	Automotive	AEC-Q100	Surface Mount	20-QFN (3x3)	20-WFQFN Exposed Pad
EFM8BB31F16G-D-QFN24R IC MCU 8BIT 16KB FLASH 24QFN Silicon Labs	5,061 In Stock	Active	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	50MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	20	16KB (16K x 8)	FLASH	-	2.25K x 8	2.2V ~ 3.6V	A/D 12x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	24-QFN (3x3)	24-VFQFN Exposed Pad
EFM8BB10F4G-A-QFN20R IC MCU 8BIT 4KB FLASH 20QFN Silicon Labs	2,036 In Stock	Active	-	Busy Bee	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	CIP-51 8051	8-Bit	25MHz	I2C, SMBus, SPI, UART/USART	Brown-out Detect/Reset, POR, PWM, WDT	16	4KB (4K x 8)	FLASH	-	512 x 8	2.2V ~ 3.6V	A/D 15x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	20-QFN (3x3)	20-UFQFN Exposed Pad

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Microcontroller products are relatively complex, user-programmable digital logic devices. Closely related to devices considered microprocessors, the distinction between the two reduces largely to the manufacturer's choice of noun, though by tradition microcontrollers integrate working memory, are more likely to incorporate mixed-signal peripherals and tend to be used with simpler software paradigms oriented toward repetitive execution of a predefined series of tasks.

Microcontrollers

Microcontrollers

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