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Total Products: 3,852
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Sheet		Part NumberManufacturerDescriptionCategoryDevice PackageVoltageOperating
Temp		Additional SpecificationsQtyGet A
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EFM8BB31F16I-D-QFN32N/AEFM8BB31F16I-D-QFN32Silicon LabsIC MCU 8BIT 16KB FLASH 32QFNMicrocontrollers32-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
16KB (16K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (4×4)
Package / Case:
32-UFQFN Exposed Pad
1,258
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EFM8BB31F16I-D-QFN32RN/AEFM8BB31F16I-D-QFN32RSilicon LabsIC MCU 8BIT 16KB FLASH 32QFNMicrocontrollers32-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
16KB (16K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (4×4)
Package / Case:
32-UFQFN Exposed Pad
223
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EFM8BB31F16I-D-QFP32N/AEFM8BB31F16I-D-QFP32Silicon LabsIC MCU 8BIT 16KB FLASH 32QFPMicrocontrollers32-QFP (7x7)N/A-40°C ~ 125°C (TA)
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:
16KB (16K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFP (7×7)
Package / Case:
32-TQFP
854
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EFM8BB31F16I-D-QFP32RN/AEFM8BB31F16I-D-QFP32RSilicon LabsIC MCU 8BIT 16KB FLASH 32QFPMicrocontrollers32-QFP (7x7)N/A-40°C ~ 125°C (TA)
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:
16KB (16K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFP (7×7)
Package / Case:
32-TQFP
546
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EFM8BB31F16I-D-QSOP24N/AEFM8BB31F16I-D-QSOP24Silicon LabsIC MCU 8BIT 16KB FLASH 24QSOPMicrocontrollers24-QSOPN/A-40°C ~ 125°C (TA)
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:
16KB (16K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 13x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
24-QSOP
Package / Case:
24-SSOP (0.154″”, 3.90mm Width)
887
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EFM8BB31F16I-D-QSOP24RN/AEFM8BB31F16I-D-QSOP24RSilicon LabsIC MCU 8BIT 16KB FLASH 24QSOPMicrocontrollers24-QSOPN/A-40°C ~ 125°C (TA)
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:
16KB (16K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 13x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
24-QSOP
Package / Case:
24-SSOP (0.154″”, 3.90mm Width)
66
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EFM8BB31F32A-B-4QFN24
EFM8BB31F32A-B-4QFN24Silicon LabsIC MCU 8BIT 32KB FLASH 24QFNMicrocontrollers24-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 12×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
24-QFN (4×4)
Package / Case:
24-WFQFN Exposed Pad
798
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EFM8BB31F32A-B-4QFN24R
EFM8BB31F32A-B-4QFN24RSilicon LabsIC MCU 8BIT 32KB FLASH 24QFNMicrocontrollers24-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 12×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
24-QFN (4×4)
Package / Case:
24-WFQFN Exposed Pad
436
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EFM8BB31F32A-B-5QFN32
EFM8BB31F32A-B-5QFN32Silicon LabsIC MCU 8BIT 32KB FLASH 32QFNMicrocontrollers32-QFN (5x5)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (5×5)
Package / Case:
32-WFQFN Exposed Pad
1,250
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EFM8BB31F32A-B-5QFN32R
EFM8BB31F32A-B-5QFN32RSilicon LabsIC MCU 8BIT 32KB FLASH 32QFNMicrocontrollers32-QFN (5x5)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (5×5)
Package / Case:
32-WFQFN Exposed Pad
232
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EFM8BB31F32A-C-4QFN24
EFM8BB31F32A-C-4QFN24Silicon LabsIC MCU 8BIT 32KB FLASH 24QFNMicrocontrollers24-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 12×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
24-QFN (4×4)
Package / Case:
24-WFQFN Exposed Pad
829
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EFM8BB31F32A-C-4QFN24R
EFM8BB31F32A-C-4QFN24RSilicon LabsIC MCU 8BIT 32KB FLASH 24QFNMicrocontrollers24-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 12×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
24-QFN (4×4)
Package / Case:
24-WFQFN Exposed Pad
92
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EFM8BB31F32A-C-5QFN32
EFM8BB31F32A-C-5QFN32Silicon LabsIC MCU 8BIT 32KB FLASH 32QFNMicrocontrollers32-QFN (5x5)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (5×5)
Package / Case:
32-WFQFN Exposed Pad
948
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EFM8BB31F32A-C-5QFN32R
EFM8BB31F32A-C-5QFN32RSilicon LabsIC MCU 8BIT 32KB FLASH 32QFNMicrocontrollers32-QFN (5x5)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Grade:
Automotive
Qualification:
AEC-Q100
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (5×5)
Package / Case:
32-WFQFN Exposed Pad
47
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EFM8BB31F32A-D-4QFN24N/AEFM8BB31F32A-D-4QFN24Silicon LabsIC MCU 8BIT 32KB FLASH 24QFNMicrocontrollers24-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 12x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
24-QFN (4×4)
Package / Case:
24-WFQFN Exposed Pad
74
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QUOTE
EFM8BB31F32A-D-4QFN24RN/AEFM8BB31F32A-D-4QFN24RSilicon LabsIC MCU 8BIT 32KB FLASH 24QFNMicrocontrollers24-QFN (4x4)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 12x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
24-QFN (4×4)
Package / Case:
24-WFQFN Exposed Pad
1,499
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EFM8BB31F32A-D-5QFN32N/AEFM8BB31F32A-D-5QFN32Silicon LabsIC MCU 8BIT 32KB FLASH 32QFNMicrocontrollers32-QFN (5x5)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (5×5)
Package / Case:
32-WFQFN Exposed Pad
119
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EFM8BB31F32A-D-5QFN32RN/AEFM8BB31F32A-D-5QFN32RSilicon LabsIC MCU 8BIT 32KB FLASH 32QFNMicrocontrollers32-QFN (5x5)N/A-40°C ~ 125°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20x12b; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 125°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (5×5)
Package / Case:
32-WFQFN Exposed Pad
938
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QUOTE
EFM8BB31F32G-A-QFN24
EFM8BB31F32G-A-QFN24Silicon LabsIC MCU 8BIT 32KB FLASH 24QFNMicrocontrollers24-QFN (3x3)N/A-40°C ~ 85°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 12×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
24-QFN (3×3)
Package / Case:
24-VFQFN Exposed Pad
1,160
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QUOTE
EFM8BB31F32G-A-QFN32
EFM8BB31F32G-A-QFN32Silicon LabsIC MCU 8BIT 32KB FLASH 32QFNMicrocontrollers32-QFN (4x4)N/A-40°C ~ 85°C (TA)
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:
32KB (32K x 8)
Program Memory Type:
FLASH
RAM Size:
2.25K x 8
Voltage – Supply (Vcc/Vdd):
2.2V ~ 3.6V
Data Converters:
A/D 20×10/12b SAR; D/A 2x12b
Oscillator Type:
Internal
Operating Temperature:
-40°C ~ 85°C (TA)
Mounting Type:
Surface Mount
Supplier Device Package:
32-QFN (4×4)
Package / Case:
32-UFQFN Exposed Pad
746
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QUOTE

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