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 16KB FLASH 24QSOP ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USART, USBBrown-out Detect/Reset, POR, PWM, WDT1716KB (16K x 8)FLASH
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2.25K x 81.71 V ~ 3.6 VA/D 15x12bInternal-40°C ~ 85°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 32KB FLASH 32LQFP Active80518-Bit50MHzSMBus (2-Wire/I²C), CANbus, LINbus, 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 8BIT 4KB FLASH 20QFN ActiveCIP-51 80518-Bit25MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT164KB (4K x 8)FLASH
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512 x 82.2 V ~ 3.6 VA/D 15x12bInternal-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 81.8 V ~ 3.6 VA/D 9x12bInternal-40°C ~ 85°C (TA)20-UFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 8BIT 8KB FLASH 16SOIC ActiveCIP-51 80518-Bit25MHzI²C, SMBus, 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)16-SOIC
Silicon Labs IC MCU 8BIT 8KB FLASH 24QSOP ActiveCIP-51 80518-Bit25MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT188KB (8K x 8)FLASH
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512 x 82.2 V ~ 3.6 VA/D 16x12bInternal-40°C ~ 85°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 8KB FLASH 24QFN ActiveCIP-51 80518-Bit25MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, 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-WFQFN Exposed Pad24-QFN (4x4)
Silicon Labs IC MCU 8BIT 4KB FLASH 20QFN Active80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, WDT174KB (4K x 8)FLASH
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1K x 81.8 V ~ 3.6 V
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Internal-40°C ~ 105°C (TA)20-VFQFN Exposed Pad20-QFN (4x4)
Silicon Labs IC MCU 8BIT 4KB FLASH 20QFN Active80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT174KB (4K x 8)FLASH
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1K x 81.8 V ~ 3.6 VA/D 16x10b; D/A 2x10bInternal-40°C ~ 105°C (TA)20-VFQFN Exposed Pad20-QFN (4x4)
Silicon Labs IC MCU 8BIT 16KB FLASH 28QFN ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2216KB (16K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 20x12bInternal-40°C ~ 85°C (TA)28-WFQFN Exposed Pad28-QFN (5x5)
Silicon Labs IC MCU 8BIT 16KB FLASH 28QFN ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2216KB (16K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 20x12bInternal-40°C ~ 125°C (TA)28-WFQFN Exposed Pad28-QFN (5x5)
Silicon Labs IC MCU 8BIT 32KB FLASH 24QFN ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2032KB (32K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 12x12b, A/D 2x12bInternal-40°C ~ 85°C (TA)24-VFQFN Exposed Pad24-QFN (3x3)
Silicon Labs IC MCU 8BIT 8KB FLASH 20QFN Active80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT178KB (8K x 8)FLASH
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1K x 81.8 V ~ 3.6 VA/D 16x10b; D/A 2x10bInternal-40°C ~ 105°C (TA)20-VFQFN Exposed Pad20-QFN (4x4)
Silicon Labs IC MCU 8BIT 32KB FLASH 24QFN ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2032KB (32K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 12x12b, A/D 2x12bInternal-40°C ~ 125°C (TA)24-VFQFN Exposed Pad24-QFN (3x3)
Silicon Labs IC MCU 8BIT 16KB FLASH 20QFN ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USART, USBBrown-out Detect/Reset, POR, PWM, WDT1316KB (16K x 8)FLASH
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2.25K x 81.71 V ~ 3.6 VA/D 11x12bInternal-40°C ~ 85°C (TA)20-WFQFN Exposed Pad20-QFN (3x3)
Silicon Labs IC MCU 8BIT 16KB FLASH 20QFN Active80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT1716KB (16K x 8)FLASH
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1K x 81.8 V ~ 3.6 VA/D 16x10b; D/A 2x10bInternal-40°C ~ 105°C (TA)20-VFQFN Exposed Pad20-QFN (4x4)
Silicon Labs IC MCU 8BIT 64KB FLASH 24QFN ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2064KB (64K x 8)FLASH
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4.25K x 82.2 V ~ 3.6 VA/D 12x12b, D/A 4x12bInternal-40°C ~ 125°C (TA)24-VFQFN Exposed Pad24-QFN (3x3)
Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2964KB (64K x 8)FLASH
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4.25K x 82.2 V ~ 3.6 VA/D 20x12b, D/A 4x12bInternal-40°C ~ 125°C (TA)32-UFQFN Exposed Pad32-QFN (4x4)
Silicon Labs IC MCU 8BIT 64KB FLASH 24QSOP ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2164KB (64K x 8)FLASH
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4.25K x 82.2 V ~ 3.6 VA/D 13x12b, D/A 4x12bInternal-40°C ~ 125°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 8KB FLASH 16SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, 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 16KB FLASH 32QFN Active80518-Bit48 MIPSI²C, SPI, UART/USART, USBBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT2516KB (16K x 8)FLASH
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2.25K x 82.7 V ~ 5.25 VA/D 21x10bInternal-40°C ~ 85°C (TA)32-VFQFN Exposed Pad32-QFN (5x5)
Silicon Labs IC MCU 8BIT 16KB FLASH 28QFN Not For New Designs80518-Bit25MHzUART/USART, USBPOR1516KB (16K x 8)FLASH
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1.5K x 82.7 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)28-VFQFN Exposed Pad28-QFN (5x5)
Silicon Labs IC MCU 8BIT 16KB FLASH 16SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT1316KB (16K 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 20QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, 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 16KB FLASH 16SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, PWM, Temp Sensor, WDT1316KB (16K 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 24QSOP 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)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 16KB FLASH 24QSOP Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, 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)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 16KB FLASH 24QSOP Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTCap Sense, POR, 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)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 64KB FLASH 32QFN Active80518-Bit48 MIPSI²C, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT2564KB (64K x 8)FLASH
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4.25K x 82.7 V ~ 5.25 VA/D 21x10bInternal-40°C ~ 85°C (TA)32-VFQFN Exposed Pad32-QFN (5x5)
Silicon Labs IC MCU 8BIT 2KB FLASH 20TSSOP Active80518-Bit25MHzSPI, UART/USARTBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT162KB (2K x 8)FLASH
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256 x 81.8 V ~ 5.25 VA/D 16x12bInternal-40°C ~ 125°C (TA)20-TSSOP (0.173", 4.40mm Width)20-TSSOP
Silicon Labs IC MCU 8BIT 4KB FLASH 20TSSOP Active80518-Bit25MHzSPI, UART/USARTBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT164KB (4K x 8)FLASH
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256 x 81.8 V ~ 5.25 VA/D 16x12bInternal-40°C ~ 125°C (TA)20-TSSOP (0.173", 4.40mm Width)20-TSSOP
Silicon Labs IC MCU 8BIT 16KB FLASH 20QFN Active80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, WDT1716KB (16K x 8)FLASH
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768 x 82.7 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 FLASH 24QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, WDT2116KB (16K x 8)FLASH
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1.25K x 82.7 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)24-WFQFN Exposed Pad24-QFN (4x4)
Silicon Labs IC MCU 8BIT 16KB FLASH 24QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT2116KB (16K x 8)FLASH
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1.25K x 82.7 V ~ 3.6 VA/D 13x10bInternal-40°C ~ 85°C (TA)24-WFQFN Exposed Pad24-QFN (4x4)
Silicon Labs IC MCU 8BIT 32KB FLASH 24QFN Active80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT1832KB (32K x 8)FLASH
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2.25K 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 256KB FLASH 81CSP ActiveARM® Cortex®-M332-Bit48MHzI²C, IrDA, SmartCard, SPI, UART/USART, USB OTGBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT65256KB (256K 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 256KB FLASH 64TQFP ActiveARM® Cortex®-M4F32-Bit48MHzI²C, IrDA, SmartCard, SPI, UART/USART, USBBrown-out Detect/Reset, DMA, I²S, POR, PWM, WDT50256KB (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)64-TQFP64-QFN (9x9)
Silicon Labs IC MCU 8BIT 16KB FLASH 40QFN Active80518-Bit50MHzEBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT3316KB (16K x 8)FLASH
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2.25K x 81.8 V ~ 5.25 VA/D 32x12bInternal-40°C ~ 125°C (TA)40-VFQFN Exposed Pad40-QFN (6x6)
Silicon Labs IC MCU 8BIT 64KB FLASH 48QFN Active80518-Bit50MHzEBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, Temp Sensor, WDT4064KB (64K x 8)FLASH
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4.25K x 81.8 V ~ 5.25 VA/D 32x12bInternal-40°C ~ 125°C (TA)48-VFQFN Exposed Pad48-QFN (7x7)
Silicon Labs IC MCU 8BIT 96KB FLASH 48QFN Active80518-Bit50MHzEBI/EMI, SMBus (2-Wire/I²C), CANbus, LINbus, SPI, UART/USARTPOR, PWM, Temp Sensor, WDT4096KB (96K x 8)FLASH
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8.25K x 81.8 V ~ 5.25 VA/D 32x12bInternal-40°C ~ 125°C (TA)48-VFQFN Exposed Pad48-QFN (7x7)
Silicon Labs IC MCU 8BIT 128KB FLASH 40QFN Active80518-Bit50MHzEBI/EMI, SMBus (2-Wire/I²C), CANbus, LINbus, SPI, UART/USARTPOR, PWM, Temp Sensor, WDT33128KB (128K x 8)FLASH
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8.25K x 81.8 V ~ 5.25 VA/D 32x12bInternal-40°C ~ 125°C (TA)40-VFQFN Exposed Pad40-QFN (6x6)
Silicon Labs IC MCU 8BIT 8KB FLASH 24QSOP ActiveCIP-51 80518-Bit25MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT188KB (8K x 8)FLASH
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512 x 82.2 V ~ 3.6 VA/D 16x12bInternal-40°C ~ 125°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 1.5KB OTP 11QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), UART/USARTPOR, PWM, WDT61.5KB (1.5K x 8)OTP
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128 x 81.8 V ~ 3.6 V
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Internal-40°C ~ 85°C (TA)10-VFDFN Exposed Pad11-QFN (3x3)
Silicon Labs IC MCU 8BIT 32KB FLASH 32QFN ActiveCIP-51 80518-Bit50MHzI²C, 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 20x12b, D/A 2x12bInternal-40°C ~ 85°C (TA)32-UQFN Exposed Pad32-QFN (4x4)
Silicon Labs IC MCU 8BIT 16KB FLASH 24QSOP ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2116KB (16K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 20x12bInternal-40°C ~ 125°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 2KB OTP 14SOIC Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), UART/USARTPOR, PWM, Temp Sensor, WDT82KB (2K 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 32KB FLASH 32QFN ActiveCIP-51 80518-Bit50MHzI²C, 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 20x12b, D/A 2x12bInternal-40°C ~ 125°C (TA)32-UQFN Exposed Pad32-QFN (4x4)
Silicon Labs IC MCU 8BIT 16KB FLASH 24QFN Active80518-Bit50MHzSMBus (2-Wire/I²C), SPI, UART/USARTPOR, PWM, WDT2116KB (16K x 8)FLASH
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1K x 81.8 V ~ 3.6 V
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Internal-40°C ~ 105°C (TA)24-WFQFN Exposed Pad24-QFN (4x4)
Silicon Labs IC MCU 8BIT 32KB FLASH 24QSOP ActiveCIP-51 80518-Bit50MHzI²C, SMBus, SPI, UART/USARTBrown-out Detect/Reset, POR, PWM, WDT2132KB (32K x 8)FLASH
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2.25K x 82.2 V ~ 3.6 VA/D 13x12b, D/A 2x12bInternal-40°C ~ 125°C (TA)24-SSOP (0.154", 3.90mm Width)24-QSOP
Silicon Labs IC MCU 8BIT 4KB OTP 11QFN Not For New Designs80518-Bit25MHzSMBus (2-Wire/I²C), UART/USARTPOR, PWM, Temp Sensor, WDT84KB (4K x 8)OTP
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256 x 81.8 V ~ 3.6 VA/D 8x10bInternal-40°C ~ 85°C (TA)10-VFDFN Exposed Pad11-QFN (3x3)