 | | EFM8UB20F32G-B-QFP32R | Silicon Labs | IC MCU 8BIT 32KB FLASH 32QFP | Microcontrollers | 32-QFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFP (7×7) | 542 | |
 | | EFM8UB20F32G-B-QFP48 | Silicon Labs | IC MCU 8BIT 32KB FLASH 48TQFP | Microcontrollers | 48-TQFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: EBI/EMI, I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 32x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 48-TQFP (7×7) | 1,289 | |
 | | EFM8UB20F32G-B-QFP48R | Silicon Labs | IC MCU 8BIT 32KB FLASH 48TQFP | Microcontrollers | 48-TQFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: EBI/EMI, I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 32x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 48-TQFP (7×7) | 387 | |
 | | EFM8UB20F64G-A-QFN32 | Silicon Labs | IC MCU 8BIT 64KB FLASH 32QFN | Microcontrollers | 32-QFN (5x5) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFN (5×5) Package / Case: 32-VFQFN Exposed Pad | 589 | |
 | | EFM8UB20F64G-A-QFN32R | Silicon Labs | IC MCU 8BIT 64KB FLASH 32QFN | Microcontrollers | 32-QFN (5x5) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFN (5×5) Package / Case: 32-VFQFN Exposed Pad | 1,329 | |
 | | EFM8UB20F64G-A-QFP32 | Silicon Labs | IC MCU 8BIT 64KB FLASH 32QFP | Microcontrollers | 32-QFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFP (7×7) | 507 | |
 | | EFM8UB20F64G-A-QFP32R | Silicon Labs | IC MCU 8BIT 64KB FLASH 32QFP | Microcontrollers | 32-QFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFP (7×7) | 371 | |
 | | EFM8UB20F64G-A-QFP48 | Silicon Labs | IC MCU 8BIT 64KB FLASH 48TQFP | Microcontrollers | 48-TQFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: EBI/EMI, I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 32x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 48-TQFP (7×7) | 50 | |
 | | EFM8UB20F64G-A-QFP48R | Silicon Labs | IC MCU 8BIT 64KB FLASH 48TQFP | Microcontrollers | 48-TQFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: EBI/EMI, I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 32x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 48-TQFP (7×7) | 1,558 | |
 | | EFM8UB20F64G-B-QFN32 | Silicon Labs | IC MCU 8BIT 64KB FLASH 32QFN | Microcontrollers | 32-QFN (5x5) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFN (5×5) Package / Case: 32-VFQFN Exposed Pad | 1,929 | |
 | | EFM8UB20F64G-B-QFN32R | Silicon Labs | IC MCU 8BIT 64KB FLASH 32QFN | Microcontrollers | 32-QFN (5x5) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFN (5×5) Package / Case: 32-VFQFN Exposed Pad | 1,085 | |
 | | EFM8UB20F64G-B-QFP32 | Silicon Labs | IC MCU 8BIT 64KB FLASH 32QFP | Microcontrollers | 32-QFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFP (7×7) | 716 | |
 | | EFM8UB20F64G-B-QFP32R | Silicon Labs | IC MCU 8BIT 64KB FLASH 32LQFP | Microcontrollers | 32-QFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 20x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 32-QFP (7×7) | 911 | |
 | | EFM8UB20F64G-B-QFP48 | Silicon Labs | IC MCU 8BIT 64KB FLASH 48TQFP | Microcontrollers | 48-TQFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: EBI/EMI, I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 32x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 48-TQFP (7×7) | 559 | |
 | | EFM8UB20F64G-B-QFP48R | Silicon Labs | IC MCU 8BIT 64KB FLASH 48TQFP | Microcontrollers | 48-TQFP (7x7) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: EBI/EMI, I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 64KB (64K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 2.65V ~ 3.6V Data Converters: A/D 32x10b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 48-TQFP (7×7) | 1,591 | |
 | | EFM8UB30F40G-A-QFN20 | Silicon Labs | IC MCU 8BIT 40KB FLASH 20QFN | Microcontrollers | 20-QFN (3x3) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 40KB (40K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 1.71V ~ 5.5V Data Converters: A/D 12x12b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 20-QFN (3×3) Package / Case: 20-WFQFN Exposed Pad | 880 | |
 | | EFM8UB30F40G-A-QFN20R | Silicon Labs | IC MCU 8BIT 40KB FLASH 20QFN | Microcontrollers | 20-QFN (3x3) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 40KB (40K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 1.71V ~ 5.5V Data Converters: A/D 12x12b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 20-QFN (3×3) Package / Case: 20-WFQFN Exposed Pad | 85 | |
 | | EFM8UB31F40G-A-QFN24 | Silicon Labs | IC MCU 8BIT 40KB FLASH 24QFN | Microcontrollers | 24-QFN (4x4) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 40KB (40K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 1.71V ~ 5.5V Data Converters: A/D 16x12b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 24-QFN (4×4) Package / Case: 24-WFQFN Exposed Pad | 349 | |
 | | EFM8UB31F40G-A-QFN24R | Silicon Labs | IC MCU 8BIT 40KB FLASH 24QFN | Microcontrollers | 24-QFN (4x4) | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 40KB (40K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 1.71V ~ 5.5V Data Converters: A/D 16x12b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 24-QFN (4×4) Package / Case: 24-WFQFN Exposed Pad | 249 | |
 | | EFM8UB31F40G-A-QSOP24 | Silicon Labs | IC MCU 8BIT 40KB FLASH 24QSOP | Microcontrollers | 24-QSOP | N/A | -40°C ~ 85°C (TA) | Core Processor: CIP-51 8051 Connectivity: I2C, SMBus, SPI, UART/USART, USB Peripherals: Brown-out Detect/Reset, POR, PWM, WDT Program Memory Size: 40KB (40K x 8) Program Memory Type: FLASH Voltage – Supply (Vcc/Vdd): 1.71V ~ 5.5V Data Converters: A/D 16x12b Operating Temperature: -40°C ~ 85°C (TA) Mounting Type: Surface Mount Supplier Device Package: 24-QSOP Package / Case: 24-SSOP (0.154″”, 3.90mm Width) | 391 | |