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| Photo | Mfr. Part # | Availability | Quantity | Datasheet | Package/Case | Series | Packaging | Product Status | 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 | Supplier Device Package |
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EFM8SB20F32G-A-QFN32IC MCU 8BIT 32KB FLASH 32QFN |
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 Datasheet
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32-VFQFN Exposed Pad | Sleepy Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 24 | 32KB (32K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 23x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F32G-A-QFP32IC MCU 8BIT 32KB FLASH 32QFP |
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Datasheet
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32-LQFP | Sleepy Bee | Tray | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 24 | 32KB (32K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 23x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F64G-A-QFN24IC MCU 8BIT 64KB FLASH 24QFN |
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Datasheet
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24-WFQFN Exposed Pad | Sleepy Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 16 | 64KB (64K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 15x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F64G-A-QFN32IC MCU 8BIT 64KB FLASH 32QFN |
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Datasheet
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32-VFQFN Exposed Pad | Sleepy Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 24 | 64KB (64K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 23x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F64G-A-QFP32IC MCU 8BIT 64KB FLASH 32QFP |
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Datasheet
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32-LQFP | Sleepy Bee | Tray | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 24 | 64KB (64K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 23x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB10F16G-B-QFN20IC MCU 8BIT 16KB FLASH 20QFN |
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Datasheet
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20-UFQFN Exposed Pad | Universal Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 50MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 13 | 16KB (16K x 8) | FLASH | - | 2.25K x 8 | 2.2V ~ 5.25V | A/D 11x12b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB10F16G-B-QFN28IC MCU 8BIT 16KB FLASH 28QFN |
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Datasheet
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28-WFQFN Exposed Pad | Universal Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 50MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 22 | 16KB (16K x 8) | FLASH | - | 2.25K x 8 | 2.2V ~ 5.25V | A/D 20x12b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB10F8G-B-QFN20IC MCU 8BIT 8KB FLASH 20QFN |
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Datasheet
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20-UFQFN Exposed Pad | Universal Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 50MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 13 | 8KB (8K x 8) | FLASH | - | 2.25K x 8 | 2.2V ~ 5.25V | A/D 11x12b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB11F16G-B-QSOP24IC MCU 8BIT 16KB FLASH 24QSOP |
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Datasheet
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24-SSOP (0.154", 3.90mm Width) | Universal Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 50MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 17 | 16KB (16K x 8) | FLASH | - | 2.25K x 8 | 2.2V ~ 5.25V | A/D 15x12b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB20F32G-A-QFN32IC MCU 8BIT 32KB FLASH 32QFN |
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Datasheet
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32-VFQFN Exposed Pad | Universal Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 48MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 25 | 32KB (32K x 8) | FLASH | - | 2.25K x 8 | 2.65V ~ 3.6V | A/D 20x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB20F32G-A-QFP32IC MCU 8BIT 32KB FLASH 32QFP |
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Datasheet
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32-LQFP | Universal Bee | Tray | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 48MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 25 | 32KB (32K x 8) | FLASH | - | 2.25K x 8 | 2.65V ~ 3.6V | A/D 20x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB20F32G-A-QFP48IC MCU 8BIT 32KB FLASH 48TQFP |
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Datasheet
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48-TQFP | Universal Bee | Tray | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 48MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 40 | 32KB (32K x 8) | FLASH | - | 2.25K x 8 | 2.65V ~ 3.6V | A/D 32x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB20F64G-A-QFN32IC MCU 8BIT 64KB FLASH 32QFN |
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Datasheet
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32-VFQFN Exposed Pad | Universal Bee | Tube | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 48MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 25 | 64KB (64K x 8) | FLASH | - | 4.25K x 8 | 2.65V ~ 3.6V | A/D 20x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB20F64G-A-QFP32IC MCU 8BIT 64KB FLASH 32QFP |
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Datasheet
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32-LQFP | Universal Bee | Tray | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 48MHz | I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 25 | 64KB (64K x 8) | FLASH | - | 4.25K x 8 | 2.65V ~ 3.6V | A/D 20x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8UB20F64G-A-QFP48IC MCU 8BIT 64KB FLASH 48TQFP |
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Datasheet
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48-TQFP | Universal Bee | Tray | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 48MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART, USB | Brown-out Detect/Reset, POR, PWM, WDT | 40 | 64KB (64K x 8) | FLASH | - | 4.25K x 8 | 2.65V ~ 3.6V | A/D 32x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F16G-A-QFN24RIC MCU 8BIT 16KB FLASH 24QFN |
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Datasheet
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24-WFQFN Exposed Pad | Sleepy Bee | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 16 | 16KB (16K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 15x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F32G-A-QFN24RIC MCU 8BIT 32KB FLASH 24QFN |
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Datasheet
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24-WFQFN Exposed Pad | Sleepy Bee | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 16 | 32KB (32K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 15x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F32G-A-QFN32RIC MCU 8BIT 32KB FLASH 32QFN |
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Datasheet
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32-VFQFN Exposed Pad | Sleepy Bee | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 24 | 32KB (32K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 23x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F32G-A-QFP32RIC MCU 8BIT 32KB FLASH 32QFP |
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Datasheet
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32-LQFP | Sleepy Bee | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 24 | 32KB (32K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 23x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount | ||
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EFM8SB20F64G-A-QFN24RIC MCU 8BIT 64KB FLASH 24QFN |
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Datasheet
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24-WFQFN Exposed Pad | Sleepy Bee | Tape & Reel (TR) | Discontinued at Digi-Key | Not Verified | CIP-51 8051 | 8-Bit | 25MHz | EBI/EMI, I2C, SMBus, SPI, UART/USART | Brown-out Detect/Reset, POR, PWM, WDT | 16 | 64KB (64K x 8) | FLASH | - | 4.25K x 8 | 1.8V ~ 3.6V | A/D 15x10b | Internal | -40°C ~ 85°C (TA) | - | - | Surface Mount |
Category Overview
Microcontrollers Products & Selection Guide
Microcontrollers are widely used in industrial automation, automotive electronics, communication equipment, consumer electronics, new energy systems, and many other electronic applications. We offer products from multiple manufacturers, packages, and specifications to help engineers and buyers compare and source suitable components.
Use the manufacturer, key specification, availability, and Datasheet filters to narrow down the right Microcontrollers. If the exact part is not listed, submit an inquiry and our team can help check stock, lead time, and suitable alternatives.
FAQ
How do I choose the right Microcontrollers?
Start with the required electrical specifications, package, operating temperature, application conditions, and manufacturer preference, then compare availability and lead time.
Can I order based on the stock shown on this page?
Inventory can change with supply conditions. For project or volume requirements, please submit an inquiry so current stock, pricing, and lead time can be confirmed.
What if the exact part number I need is not listed?
Send us the part number and required quantity. We can help source hard-to-find parts and suggest suitable alternatives based on key specifications.
Do you provide Datasheets and technical documents?
Yes. Use the Datasheet links in the product list to view available technical documents. If a document is unavailable, contact us and we can help check it.
