Part Number Manufacturer / Brand Brife Description Part StatusCore ProcessorCore SizeSpeedConnectivityPeripheralsNumber of I/OProgram Memory SizeProgram Memory TypeEEPROM SizeRAM SizeVoltage - Supply (Vcc/Vdd)Data ConvertersOscillator TypeOperating TemperaturePackage / CaseSupplier Device Package
Silicon Labs IC MCU 8BIT 8KB OTP 14SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), UART/USARTPOR, PWM, Temp Sensor, WDT88KB (8K x 8)OTP
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256 x 81.8 V ~ 3.6 VA/D 8x10bInternal-40°C ~ 85°C (TA)14-SOIC (0.154", 3.90mm Width)14-SOIC
Silicon Labs IC MCU 8BIT 4KB FLASH 16SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, WDT134KB (4K x 8)FLASH
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256 x 81.8 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)16-SOIC (0.154", 3.90mm Width)16-SOIC
Silicon Labs IC MCU 8BIT 32KB FLASH 32QFP ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2832KB (32K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 20x12b, D/A 2x12bInternal-40°C ~ 125°C (TA)32-TQFP32-QFP (7x7)
Silicon Labs IC MCU 8BIT 2KB OTP 20QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, WDT172KB (2K x 8)OTP
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768 x 81.8 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)20-VFQFN Exposed Pad20-QFN (4x4)
Silicon Labs IC MCU 8BIT 16KB OTP 32LQFP Not For New Designs80518-Bit48 MIPSI²C, SPI, UART/USART, USBPOR, PWM, WDT2516KB (16K x 8)OTP
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1.25K x 81.8 V ~ 5.25 V
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Internal-40°C ~ 85°C (TA)32-LQFP32-LQFP (7x7)
Silicon Labs IC MCU 8BIT 16KB FLASH 20QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT1716KB (16K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 16x10bInternal-40°C ~ 85°C (TA)20-VFQFN Exposed Pad20-QFN (4x4)
Silicon Labs IC MCU 8BIT 32KB FLASH 32QFN ActiveCIP-51 80518-Bit72MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2932KB (32K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 20x14b, D/A 4x12bInternal-40°C ~ 105°C (TA)32-UFQFN Exposed Pad32-QFN (4x4)
Silicon Labs IC MCU 8BIT 8KB FLASH 20QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT178KB (8K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 16x10bInternal-40°C ~ 85°C (TA)20-VFQFN Exposed Pad20-QFN (4x4)
Silicon Labs IC MCU 8BIT 8KB FLASH 16SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT138KB (8K x 8)FLASH
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256 x 81.8 V ~ 3.6 VA/D 12x10bInternal-40°C ~ 85°C (TA)16-SOIC (0.154", 3.90mm Width)16-SOIC
Silicon Labs IC MCU 8BIT 8KB FLASH 16SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT138KB (8K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 12x10bInternal-40°C ~ 85°C (TA)16-SOIC (0.154", 3.90mm Width)16-SOIC
Silicon Labs IC MCU 8BIT 16KB FLASH 16SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, WDT1316KB (16K x 8)FLASH
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512 x 81.8 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)16-SOIC (0.154", 3.90mm Width)16-SOIC
Silicon Labs IC MCU 8BIT 16KB FLASH 24QSOP Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, WDT1716KB (16K x 8)FLASH
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512 x 81.8 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 8KB FLASH 24QSOP Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT178KB (8K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 16x10bInternal-40°C ~ 85°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 8KB FLASH 24QSOP Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT178KB (8K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 16x10bInternal-40°C ~ 85°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN Active80518-Bit48 MIPSI²C, SPI, UART/USART, USBBrown-out Detect/Reset, POR, PWM, WDT2564KB (64K x 8)FLASH
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4.25K x 82.7 V ~ 5.25 V
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Internal-40°C ~ 85°C (TA)32-VFQFN Exposed Pad32-QFN (5x5)
Silicon Labs IC MCU 8BIT 64KB OTP 32QFN Not For New Designs80518-Bit48 MIPSI²C, SPI, UART/USART, USBPOR, PWM, Temp Sensor, WDT2464KB (64K x 8)OTP
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3.25K x 81.8 V ~ 5.25 VA/D 21x10bInternal-40°C ~ 85°C (TA)32-VFQFN Exposed Pad32-QFN (5x5)
Silicon Labs IC MCU 8BIT 32KB FLASH 24QFN ActiveCIP-51™8-Bit25MHzI²C/SMBus, I²C Slave, SPI, UART/USARTCapSense, DMA, POR, PWM, WDT1932KB (32K x 8)FLASH
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8K x 81.8 V ~ 3.6 VA/D 19x10bInternal-40°C ~ 85°C (TA)24-WFQFN Exposed Pad24-QFN (4x4)
Silicon Labs IC MCU 8BIT 15KB FLASH 48QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT3915KB (15K x 8)FLASH32 x 8512 x 81.8 V ~ 3.6 VA/D 12x10bInternal-40°C ~ 85°C (TA)48-VFQFN Exposed Pad48-QFN (7x7)
Silicon Labs IC MCU 32BIT 64KB FLASH 81CSP ActiveARM® Cortex®-M332-Bit48MHzI²C, IrDA, SmartCard, SPI, UART/USART, USB OTGBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT6564KB (64K x 8)FLASH
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32K x 81.98 V ~ 3.8 VA/D 8x12b, D/A 1x12bInternal-40°C ~ 85°C (TA)81-UFBGA, CSPBGA81-CSP (4.35x4.27)
Silicon Labs IC MCU 32BIT 64KB FLASH 81CSP ActiveARM® Cortex®-M432-Bit48MHzI²C, IrDA, SmartCard, SPI, UART/USART, USB OTGBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT6564KB (64K x 8)FLASH
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32K x 81.98 V ~ 3.8 VA/D 8x12b, D/A 1x12bInternal-40°C ~ 85°C (TA)81-UFBGA, CSPBGA81-CSP (4.35x4.27)
Silicon Labs IC MCU 8BIT 16KB FLASH 24QFN Active80518-Bit50MHzSMBus (2-Wire/I²C), LINbus, SPI, UART/USARTPOR, PWM, Temp Sensor, WDT1816KB (16K x 8)FLASH
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1.25K x 81.8 V ~ 5.25 VA/D 18x12bInternal-40°C ~ 125°C (TA)24-WFQFN Exposed Pad24-QFN (4x4)
Silicon Labs IC MCU 32BIT 128KB FLASH 81CSP ActiveARM® Cortex®-M432-Bit48MHzI²C, IrDA, SmartCard, SPI, UART/USART, USB OTGBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT65128KB (128K x 8)FLASH
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32K x 81.98 V ~ 3.8 VA/D 8x12b, D/A 1x12bInternal-40°C ~ 85°C (TA)81-UFBGA, CSPBGA81-CSP (4.35x4.27)
Silicon Labs IC MCU 8BIT 16KB FLASH 28QFN Not For New Designs80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT2516KB (16K x 8)FLASH
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1K x 82.7 V ~ 3.6 VA/D 17x10b; D/A 1x10bInternal-40°C ~ 85°C (TA)28-VFQFN Exposed Pad28-QFN (5x5)
Silicon Labs IC MCU 8BIT 8KB FLASH 32LQFP Active80518-Bit50MHzSMBus (2-Wire/I²C), LINbus, SPI, UART/USARTPOR, PWM, Temp Sensor, WDT258KB (8K x 8)FLASH
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1.25K x 81.8 V ~ 5.25 VA/D 25x12bInternal-40°C ~ 125°C (TA)32-LQFP32-LQFP (7x7)
Silicon Labs IC MCU 8BIT 32KB FLASH 28QFN Not For New Designs80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT2532KB (32K x 8)FLASH
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1K x 82.7 V ~ 3.6 VA/D 17x10b; D/A 1x10bInternal-40°C ~ 85°C (TA)28-VFQFN Exposed Pad28-QFN (5x5)
Silicon Labs IC MCU 8BIT 32KB FLASH 32LQFP Active80518-Bit50MHzSMBus (2-Wire/I²C), CANbus, SPI, UART/USARTPOR, PWM, Temp Sensor, WDT2532KB (32K x 8)FLASH
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2.25K x 81.8 V ~ 5.25 VA/D 25x12bInternal-40°C ~ 125°C (TA)32-LQFP32-LQFP (7x7)
Silicon Labs IC MCU 32BIT 256KB FLASH 100LQFP ActiveARM® Cortex®-M4F32-Bit48MHzEBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USARTBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT81256KB (256K x 8)FLASH
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32K x 81.85 V ~ 3.8 VA/D 8x12b, D/A 2x12bInternal-40°C ~ 85°C (TA)100-LQFP
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Silicon Labs IC MCU 8BIT 32KB FLASH 32LQFP Active80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT2532KB (32K x 8)FLASH
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4.25K x 81.8 V ~ 5.25 VA/D 25x12bInternal-40°C ~ 125°C (TA)32-LQFP32-LQFP (7x7)
Silicon Labs IC MCU 32BIT 32KB FLASH 64TQFP Not For New DesignsARM® Cortex®-M332-Bit80MHzEBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USARTBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT5032KB (32K x 8)FLASH
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8K x 81.8 V ~ 3.6 VA/D 28x12b, D/A 2x10bInternal-40°C ~ 85°C (TA)64-TQFP64-TQFP (10x10)
Silicon Labs IC MCU 8BIT 32KB FLASH 32LQFP Not For New Designs80518-Bit48MHzSMBus (2-Wire/I²C), SPI, UART/USART, USBBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT2532KB (32K x 8)FLASH
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2.25K x 82.7 V ~ 3.6 VA/D 21x10bInternal-40°C ~ 85°C (TA)32-LQFP32-LQFP (7x7)
Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN Not For New Designs80518-Bit48MHzSMBus (2-Wire/I²C), SPI, UART/USART, USBBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT2564KB (64K x 8)FLASH
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4.25K x 82.7 V ~ 3.6 VA/D 17x10bInternal-40°C ~ 85°C (TA)32-VFQFN Exposed Pad32-QFN (5x5)
Silicon Labs IC MCU 32BIT 128KB FLASH 64TQFP Not For New DesignsARM® Cortex®-M332-Bit80MHzEBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USARTBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT50128KB (128K x 8)FLASH
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32K x 81.8 V ~ 3.6 VA/D 28x12b, D/A 2x10bInternal-40°C ~ 85°C (TA)64-TQFP64-TQFP (10x10)
Silicon Labs IC MCU 32BIT 64KB FLASH 64TQFP Not For New DesignsARM® Cortex®-M332-Bit80MHzEBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART, USBBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT5064KB (64K x 8)FLASH
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16K x 81.8 V ~ 3.6 VA/D 28x12b, D/A 2x10bInternal-40°C ~ 85°C (TA)64-TQFP64-TQFP (10x10)
Silicon Labs IC MCU 8BIT 16KB FLASH 64TQFP Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT3216KB (16K x 8)FLASH
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1.25K x 82.8 V ~ 3.6 VA/D 8x10bInternal-40°C ~ 85°C (TA)64-TQFP64-TQFP (10x10)
Silicon Labs IC MCU 32BIT 128KB FLASH 64QFN Not For New DesignsARM® Cortex®-M332-Bit80MHzEBI/EMI, I²C, IrDA, SmartCard, SPI, UART/USART, USBBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT50128KB (128K x 8)FLASH
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32K x 81.8 V ~ 3.6 VA/D 28x12b, D/A 2x10bInternal-40°C ~ 85°C (TA)64-VFQFN Exposed Pad64-QFN (9x9)
Silicon Labs IC MCU 32BIT 256KB FLASH 64TQFP Not For New DesignsARM® Cortex®-M332-Bit50MHzI²C, IrDA, SmartCard, SPI, UART/USARTBrown-out Detect/Reset, DMA, LCD, POR, PWM, WDT51256KB (256K x 8)FLASH
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32K x 81.8 V ~ 3.8 VA/D 23x10/12b, D/A 1x10bInternal-40°C ~ 85°C (TA)64-TQFP64-TQFP (10x10)
Silicon Labs IC MCU 8BIT 2KB FLASH 20QFN ActiveCIP-51 80518-Bit25MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT162KB (2K x 8)FLASH
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256 x 82.2 V ~ 3.6 VA/D 15x12bInternal-40°C ~ 125°C (TA)20-WFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 8BIT 2KB FLASH 20QFN ActiveCIP-51 80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT162KB (2K x 8)FLASH
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512 x 81.8 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)20-UFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 8BIT 2KB FLASH 16SOIC Active80518-Bit25MHzI²C, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT132KB (2K x 8)FLASH
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256 x 82.2 V ~ 3.6 V
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Internal-40°C ~ 125°C (TA)16-SOIC (0.154", 3.90mm Width)
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Silicon Labs IC MCU 8BIT 4KB FLASH 20QFN ActiveCIP-51 80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT164KB (4K x 8)FLASH
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512 x 81.8 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)20-UFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 8BIT 8KB FLASH 20QFN Active80518-Bit25MHzI²C, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT158KB (8K x 8)FLASH
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512 x 82.2 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)20-VFQFN Exposed Pad
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Silicon Labs IC MCU 8BIT 8KB FLASH 16SOIC Active80518-Bit25MHzI²C, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT138KB (8K x 8)FLASH
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512 x 82.2 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)16-SOIC (0.154", 3.90mm Width)
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Silicon Labs IC MCU 8BIT 4KB FLASH 20QFN ActiveCIP-51 80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT164KB (4K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 10x10bInternal-40°C ~ 85°C (TA)20-UFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 8BIT 2KB FLASH 20QFN ActiveCIP-51 80518-Bit25MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT162KB (2K x 8)FLASH
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256 x 82.2 V ~ 3.6 VA/D 15x12bInternal-40°C ~ 125°C (TA)20-WFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 32BIT 8KB FLASH 24QFN ActiveARM® Cortex®-M0+32-Bit24MHzI²C, IrDA, SmartCard, SPI, UART/USARTBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT178KB (8K x 8)FLASH
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2K x 81.85 V ~ 3.8 V
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Internal-40°C ~ 85°C (TA)24-VQFN Exposed Pad24-QFN (5x5)
Silicon Labs IC MCU 8BIT 8KB FLASH 20QFN ActiveCIP-51 80518-Bit25MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT168KB (8K x 8)FLASH
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512 x 82.2 V ~ 3.6 VA/D 15x12bInternal-40°C ~ 125°C (TA)20-WFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 32BIT 16KB FLASH 24QFN ActiveARM® Cortex®-M0+32-Bit24MHzI²C, IrDA, SmartCard, SPI, UART/USARTBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT1716KB (16K x 8)FLASH
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4K x 81.85 V ~ 3.8 V
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Internal-40°C ~ 85°C (TA)24-VQFN Exposed Pad24-QFN (5x5)
Silicon Labs IC MCU 8BIT 4KB FLASH 24QSOP ActiveCIP-51 80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT174KB (4K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 10x10bInternal-40°C ~ 85°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 8KB FLASH 16SOIC Active80518-Bit25MHzI²C, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT138KB (8K x 8)FLASH
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512 x 82.2 V ~ 3.6 VA/D 12x12bInternal-40°C ~ 125°C (TA)16-SOIC (0.154", 3.90mm Width)
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Silicon Labs IC MCU 8BIT 8KB FLASH 24QSOP ActiveCIP-51 80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT178KB (8K x 8)FLASH
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512 x 81.8 V ~ 3.6 VA/D 10x12bInternal-40°C ~ 85°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP