Microcontrollers

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Mfr Part #	Quantity Available	Price	Tariff Status	Series	Package	Product Status	DigiKey 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	Package / Case
STM32L431KBU6 IC MCU 32BIT 128KB FLSH 32UFQFPN STMicroelectronics	2,783 In Stock	1 : $3.69000 Tray	Tariff may apply if shipping to the United States	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	26	128KB (128K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-UFQFPN (5x5)	32-UFQFN Exposed Pad
STM32L431CBT6 IC MCU 32BIT 128KB FLASH 48LQFP STMicroelectronics	10,734 In Stock	1 : $4.15000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	39	128KB (128K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-LQFP (7x7)	48-LQFP
STM32L431KBU3 IC MCU 32BIT 128KB FLSH 32UFQFPN STMicroelectronics	2,968 In Stock	1 : $4.17000 Tray	Tariff may apply if shipping to the United States	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	26	128KB (128K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	32-UFQFPN (5x5)	32-UFQFN Exposed Pad
STM32L432KBU6 IC MCU 32BIT 128KB FLSH 32UFQFPN STMicroelectronics	7,445 In Stock	1 : $4.19000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	26	128KB (128K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-UFQFPN (5x5)	32-UFQFN Exposed Pad
STM32L431KCU6 IC MCU 32BIT 256KB FLSH 32UFQFPN STMicroelectronics	1,803 In Stock	1 : $4.29000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	26	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-UFQFPN (5x5)	32-UFQFN Exposed Pad
STM32L431CCU6 IC MCU 32BIT 256KB FLSH 48UFQFPN STMicroelectronics	377 In Stock	1 : $4.44000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	39	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-UFQFPN (7x7)	48-UFQFN Exposed Pad
STM32L431CCU6TR IC MCU 32BIT 256KB FLSH 48UFQFPN STMicroelectronics	5,212 In Stock	1 : $4.51000 Cut Tape (CT) 2,500 : $2.48261 Tape & Reel (TR)	-	STM32L4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	39	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-UFQFPN (7x7)	48-UFQFN Exposed Pad
STM32L431CCT6TR IC MCU 32BIT 256KB FLASH 48LQFP STMicroelectronics	4,369 In Stock	1 : $4.59000 Cut Tape (CT) 2,400 : $2.52989 Tape & Reel (TR)	Tariff may apply if shipping to the United States	STM32L4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	39	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-LQFP (7x7)	48-LQFP
STM32L432KCU6 IC MCU 32BIT 256KB FLSH 32UFQFPN STMicroelectronics	8,982 In Stock	1 : $4.79000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	26	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	32-UFQFPN (5x5)	32-UFQFN Exposed Pad
STM32L451CCU6TR IC MCU 32BIT 256KB FLSH 48UFQFPN STMicroelectronics	10,063 In Stock	1 : $5.05000 Cut Tape (CT) 2,500 : $2.80512 Tape & Reel (TR)	-	STM32L4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	38	256KB (256K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-UFQFPN (7x7)	48-UFQFN Exposed Pad
STM32L431RCT6 IC MCU 32BIT 256KB FLASH 64LQFP STMicroelectronics	4,804 In Stock	1 : $5.05000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	52	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 16x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	64-LQFP (10x10)	64-LQFP
STM32L443CCY6TR IC MCU 32BIT 256KB FLASH 49WLCSP STMicroelectronics	3,261 In Stock	1 : $5.11000 Cut Tape (CT) 5,000 : $2.79029 Tape & Reel (TR)	-	STM32L4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, LCD, PWM, WDT	39	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	49-WLCSP (3.14x3.13)	49-UFBGA, WLCSP
STM32L433CCT6 IC MCU 32BIT 256KB FLASH 48LQFP STMicroelectronics	9,770 In Stock	1 : $5.17000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, LCD, PWM, WDT	38	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-LQFP (7x7)	48-LQFP
STM32L443CCT6 IC MCU 32BIT 256KB FLASH 48LQFP STMicroelectronics	1,532 In Stock	1 : $5.40000 Tray	Tariff may apply if shipping to the United States	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, LCD, PWM, WDT	38	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-LQFP (7x7)	48-LQFP
STM32L432KCU3 IC MCU 32BIT 256KB FLSH 32UFQFPN STMicroelectronics	4,012 In Stock	1 : $5.43000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	26	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	32-UFQFPN (5x5)	32-UFQFN Exposed Pad
STM32L433CCU3 IC MCU 32BIT 256KB FLSH 48UFQFPN STMicroelectronics	1,753 In Stock	1 : $5.61000 Tray	Tariff may apply if shipping to the United States	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, LCD, PWM, WDT	38	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	48-UFQFPN (7x7)	48-UFQFN Exposed Pad
STM32L433CCT3 IC MCU 32BIT 256KB FLASH 48LQFP STMicroelectronics	1,158 In Stock	1 : $5.76000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, LCD, PWM, WDT	38	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	48-LQFP (7x7)	48-LQFP
STM32L451CEU6 IC MCU 32BIT 512KB FLSH 48UFQFPN STMicroelectronics	2,203 In Stock	1 : $6.19000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	38	512KB (512K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-UFQFPN (7x7)	48-UFQFN Exposed Pad
STM32L452CEU6 IC MCU 32BIT 512KB FLSH 48UFQFPN STMicroelectronics	359 In Stock	1 : $6.31000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	38	512KB (512K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 10x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	48-UFQFPN (7x7)	48-UFQFN Exposed Pad
STM32L433RCT3 IC MCU 32BIT 256KB FLASH 64LQFP STMicroelectronics	8,251 In Stock	1 : $6.36000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB	Brown-out Detect/Reset, DMA, LCD, PWM, WDT	52	256KB (256K x 8)	FLASH	-	64K x 8	1.71V ~ 3.6V	A/D 16x12b; D/A 2x12b	Internal	-40°C ~ 125°C (TA)	-	-	Surface Mount	64-LQFP (10x10)	64-LQFP
STM32L452REY6TR IC MCU 32BIT 512KB FLASH 64WLCSP STMicroelectronics	5,857 In Stock	1 : $6.38000 Cut Tape (CT) 5,000 : $3.55492 Tape & Reel (TR)	-	STM32L4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	52	512KB (512K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 16x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	64-WLCSP (3.36x3.66)	64-UFBGA, WLCSP
STM32L451RET6TR IC MCU 32BIT 512KB FLASH 64LQFP STMicroelectronics	887 In Stock	1 : $6.60000 Cut Tape (CT) 1,000 : $3.85947 Tape & Reel (TR)	Tariff may apply if shipping to the United States	STM32L4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART	Brown-out Detect/Reset, DMA, PWM, WDT	52	512KB (512K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 16x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	64-LQFP (10x10)	64-LQFP
STM32L452REI6 IC MCU 32BIT 512KB FLASH 64UFBGA STMicroelectronics	3,102 In Stock	1 : $6.70000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	52	512KB (512K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 16x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	64-UFBGA (5x5)	64-UFBGA
STM32L452RET6 IC MCU 32BIT 512KB FLASH 64LQFP STMicroelectronics	718 In Stock	1 : $6.84000 Tray	-	STM32L4	Tray	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	52	512KB (512K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 16x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	64-LQFP (10x10)	64-LQFP
STM32L452RET6TR IC MCU 32BIT 512KB FLASH 64LQFP STMicroelectronics	294 In Stock	1 : $6.84000 Cut Tape (CT) 1,000 : $4.01121 Tape & Reel (TR)	Tariff may apply if shipping to the United States	STM32L4	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	ARM® Cortex®-M4	32-Bit	80MHz	CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB	Brown-out Detect/Reset, DMA, PWM, WDT	52	512KB (512K x 8)	FLASH	-	160K x 8	1.71V ~ 3.6V	A/D 16x12b; D/A 1x12b	Internal	-40°C ~ 85°C (TA)	-	-	Surface Mount	64-LQFP (10x10)	64-LQFP

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Microcontroller products are relatively complex, user-programmable digital logic devices. Closely related to devices considered microprocessors, the distinction between the two reduces largely to the manufacturer's choice of noun, though by tradition microcontrollers integrate working memory, are more likely to incorporate mixed-signal peripherals and tend to be used with simpler software paradigms oriented toward repetitive execution of a predefined series of tasks.

Microcontrollers

Microcontrollers

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