Microcontrollers
Explore Microcontrollers parts from multiple manufacturers, with model information, availability, datasheets and technical specifications for engineering and purchasing.
For parts that are not shown in the list, send the manufacturer part number, quantity or BOM to JIEXIN Electronics. Our team can assist with availability checks and quotation support.
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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EFM8SB20F32G-A-QFN32IC MCU 8BIT 32KB FLASH 32QFN |
1,806 |
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Datasheet | 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 |
2,966 |
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Datasheet | 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 |
4,412 |
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Datasheet | 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 |
4,165 |
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Datasheet | 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 |
2,590 |
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Datasheet | 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 |
3,456 |
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Datasheet | 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 |
4,510 |
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Datasheet | 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 |
3,181 |
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Datasheet | 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 |
1,378 |
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Datasheet | 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 |
4,348 |
|
Datasheet | 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 |
4,603 |
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Datasheet | 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 |
4,975 |
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Datasheet | 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 |
2,065 |
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Datasheet | 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 |
2,402 |
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Datasheet | 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 |
4,816 |
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Datasheet | 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 |
3,874 |
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Datasheet | 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 |
3,924 |
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Datasheet | 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 |
2,997 |
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Datasheet | 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 |
2,215 |
|
Datasheet | 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 |
1,082 |
|
Datasheet | 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 |
Frequently Asked Questions
What are Microcontrollers components used for?
Microcontrollers components are used in a wide range of electronic equipment and systems. Their exact function depends on the device, circuit design and technical requirements of the application.
How do I choose the right Microcontrollers part?
Compare the manufacturer part number, key specifications, package type, operating conditions, availability and datasheet information. For replacement projects, always verify the critical electrical and mechanical parameters before selecting an alternative.
Can JIEXIN Electronics help source obsolete or hard-to-find Microcontrollers parts?
Yes. Send us the required manufacturer part number, quantity or BOM. Our sourcing team can help check stock availability, lead time, alternative sourcing options and quotation details.
How can I request pricing and availability?
Submit the part number, manufacturer and required quantity through our RFQ form. JIEXIN Electronics will review your request and provide available stock, pricing and sourcing information.
