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STMicroelectronics SMD/SMT Microcontrollers - MCU

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Manufacturer = STMicroelectronics Mounting Style = SMD/SMT

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Core	Data Bus Width	Maximum Clock Frequency	Program Memory Size	Data RAM Size	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Maximum Operating Temperature	Packaging
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD STM32L4Q5AGI6 STMicroelectronics 1: 12,77 € 749In Stock	Mfr. Part No. STM32L4Q5AGI6 Mouser Part No 511-STM32L4Q5AGI6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4p5 stm32l4q5 mcus	Datasheet	749In Stock	12,77 € 10,01 € 9,27 € 8,56 € 8,26 €	Min.: 1 Mult.: 1 Max.: 300	SMD/SMT		ARM Cortex M4	32 bit	120 MHz	1 MB	320 kB	2 x 12 bit	136 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD STM32L4Q5CGT6 STMicroelectronics 1: 7,86 € 480In Stock	Mfr. Part No. STM32L4Q5CGT6 Mouser Part No 511-STM32L4Q5CGT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4p5 stm32l4q5 mcus	Datasheet	480In Stock	7,86 € 6,74 € 6,31 € 6,23 €	Min.: 1 Mult.: 1 Max.: 250	SMD/SMT		ARM Cortex M4	32 bit	120 MHz	1 MB	320 kB	2 x 12 bit	38 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD STM32L4R5VGT6 STMicroelectronics 1: 12,17 € 1.484In Stock	Mfr. Part No. STM32L4R5VGT6 Mouser Part No 511-STM32L4R5VGT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 1024 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4 microcontrollers	Datasheet	1.484In Stock	12,17 € 8,94 € 8,29 € 7,88 € 7,68 €	Min.: 1 Mult.: 1 Max.: 300	SMD/SMT	LQFP-100	ARM Cortex M4	32 bit	120 MHz	1 MB	640 kB	12 bit	83 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD STM32L4R5VIT6 STMicroelectronics 1: 13,57 € 285In Stock 540Expected 1/27/2027	Mfr. Part No. STM32L4R5VIT6 Mouser Part No 511-STM32L4R5VIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4 microcontrollers	Datasheet	285In Stock 540Expected 1/27/2027	13,57 € 10,02 € 9,27 €	Min.: 1 Mult.: 1 Max.: 200	SMD/SMT	LQFP-100	ARM Cortex M4	32 bit	120 MHz	2 MB	640 kB	12 bit	83 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD STM32L4R5ZIT6 STMicroelectronics 1: 15,33 € 391In Stock	Mfr. Part No. STM32L4R5ZIT6 Mouser Part No 511-STM32L4R5ZIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4 microcontrollers	Datasheet	391In Stock	15,33 € 12,03 € 10,99 € 10,22 €	Min.: 1 Mult.: 1 Max.: 150	SMD/SMT	LQFP-144	ARM Cortex M4	32 bit	120 MHz	2 MB	640 kB	12 bit	115 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD STM32L4R7VIT6 STMicroelectronics 1: 14,13 € 668In Stock 540Expected 10/25/2027	Mfr. Part No. STM32L4R7VIT6 Mouser Part No 511-STM32L4R7VIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4 microcontrollers	Datasheet	668In Stock 540Expected 10/25/2027	14,13 € 10,45 € 9,65 €	Min.: 1 Mult.: 1 Max.: 200	SMD/SMT	LQFP-100	ARM Cortex M4	32 bit	120 MHz	2 MB	640 kB	12 bit	83 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD STM32L4R9ZIT6 STMicroelectronics 1: 15,80 € 731In Stock	Mfr. Part No. STM32L4R9ZIT6 Mouser Part No 511-STM32L4R9ZIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4 microcontrollers	Datasheet	731In Stock	15,80 € 12,49 € 11,25 € 10,74 € 10,35 €	Min.: 1 Mult.: 1 Max.: 250	SMD/SMT	LQFP-144	ARM Cortex M4	32 bit	120 MHz	2 MB	640 kB	12 bit	112 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD STM32L4S7ZIT6 STMicroelectronics 1: 16,03 € 377In Stock	Mfr. Part No. STM32L4S7ZIT6 Mouser Part No 511-STM32L4S7ZIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 120 MHz 2048 kbytes of Flash USB OTG, DFSD Learn More about STMicroelectronics stm stm32l4 microcontrollers	Datasheet	377In Stock	16,03 € 12,56 € 11,64 € 10,74 €	Min.: 1 Mult.: 1 Max.: 200	SMD/SMT	LQFP-144	ARM Cortex M4	32 bit	120 MHz	2 MB	640 kB	2 x 12 bit	115 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 512 kbytes of Flash STM32L552CEU6 STMicroelectronics 1: 9,68 € 2.199In Stock	Mfr. Part No. STM32L552CEU6 Mouser Part No 511-STM32L552CEU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 512 kbytes of Flash Learn More about STMicroelectronics stm stm32 l5 mcus	Datasheet	2.199In Stock	9,68 € 7,55 € 6,70 € 6,43 € 6,14 €	Min.: 1 Mult.: 1 Max.: 300	SMD/SMT	UFQFPN-48	ARM Cortex M33	32 bit	110 MHz	512 kB	256 kB	2 x 12 bit	38 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash STM32L552RCT6 STMicroelectronics 1: 8,93 € 877In Stock	Mfr. Part No. STM32L552RCT6 Mouser Part No 511-STM32L552RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash Learn More about STMicroelectronics stm stm32 l5 mcus	Datasheet	877In Stock	8,93 € 6,94 € 6,15 € 5,76 €	Min.: 1 Mult.: 1 Max.: 250	SMD/SMT	LQFP-64	ARM Cortex M33	32 bit	110 MHz	256 kB	256 kB	2 x 12 bit	52 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 512 kbytes of Flash STM32L552VET6 STMicroelectronics 1: 11,17 € 654In Stock	Mfr. Part No. STM32L552VET6 Mouser Part No 511-STM32L552VET6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 512 kbytes of Flash Learn More about STMicroelectronics stm stm32 l5 mcus	Datasheet	654In Stock	11,17 € 8,18 € 7,53 € 7,49 € 7,22 €	Min.: 1 Mult.: 1 Max.: 300	SMD/SMT	LQFP-100	ARM Cortex M33	32 bit	110 MHz	512 kB	256 kB	2 x 12 bit	83 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 512 kbytes of Flash STM32L552ZET6Q STMicroelectronics 1: 11,75 € 558In Stock 360Expected 3/29/2027	Mfr. Part No. STM32L552ZET6Q Mouser Part No 511-STM32L552ZET6Q	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 512 kbytes of Flash Learn More about STMicroelectronics stm stm32 l5 mcus	Datasheet	558In Stock 360Expected 3/29/2027	11,75 € 9,22 € 8,12 € 7,82 € 7,71 €	Min.: 1 Mult.: 1 Max.: 250	SMD/SMT	LQFP-144	ARM Cortex M33	32 bit	110 MHz	512 kB	256 kB	2 x 12 bit	111 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U575CIT6 STMicroelectronics 1: 9,80 € 302In Stock 6.000Expected 11/12/2026	Mfr. Part No. STM32U575CIT6 Mouser Part No 511-STM32U575CIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	302In Stock 6.000Expected 11/12/2026	9,80 € 7,63 € 7,02 € 6,49 €	Min.: 1 Mult.: 1 Max.: 130	SMD/SMT	LQFP-48	ARM Cortex M33			2 MB	786 kB	14 bit	14 I/O	1.7 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U575CIU6 STMicroelectronics 1: 9,16 € 1.320In Stock	Mfr. Part No. STM32U575CIU6 Mouser Part No 511-STM32U575CIU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	1.320In Stock	9,16 € 7,13 € 6,32 € 6,06 € View 6,02 € 5,75 € Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-48	ARM Cortex M33			2 MB	786 kB	14 bit	14 I/O	1.7 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U575QII6Q STMicroelectronics 1: 11,22 € 813In Stock 2.496Expected 5/31/2027	Mfr. Part No. STM32U575QII6Q Mouser Part No 511-STM32U575QII6Q	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	813In Stock 2.496Expected 5/31/2027	11,22 € 8,95 € 7,96 € 7,53 € View 7,34 € 6,87 € 6,79 € Quote	Min.: 1 Mult.: 1	SMD/SMT	UFBGA-132	ARM Cortex M33			2 MB	786 kB	14 bit	14 I/O	1.7 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U585AII6 STMicroelectronics 1: 11,72 € 1.848In Stock	Mfr. Part No. STM32U585AII6 Mouser Part No 511-STM32U585AII6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	1.848In Stock	11,72 € 9,19 € 8,36 € 7,86 € View 7,71 € 7,33 € 7,24 € Quote	Min.: 1 Mult.: 1	SMD/SMT	UFBGA-169	ARM Cortex M33			2 MB	2 kB	16 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U585CIT6 STMicroelectronics 1: 9,78 € 394In Stock 1.500Expected 12/28/2026	Mfr. Part No. STM32U585CIT6 Mouser Part No 511-STM32U585CIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	394In Stock 1.500Expected 12/28/2026	9,78 € 7,68 € 6,95 € 6,48 € View 6,35 € 5,87 € Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M33			2 MB	2 kB	16 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U585CIT6Q STMicroelectronics 1: 9,41 € 247In Stock	Mfr. Part No. STM32U585CIT6Q Mouser Part No 511-STM32U585CIT6Q	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	247In Stock	9,41 € 7,33 € 6,49 € 6,24 € View 6,20 € 5,80 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M33			2 MB	2 kB	16 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U585CIU6Q STMicroelectronics 1: 10,04 € 327In Stock 1.560Expected 12/4/2026	Mfr. Part No. STM32U585CIU6Q Mouser Part No 511-STM32U585CIU6Q	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	327In Stock 1.560Expected 12/4/2026	10,04 € 7,81 € 6,95 € 6,55 € View 6,39 € 5,99 € 5,91 € Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-48	ARM Cortex M33			2 MB	2 kB	16 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone MCU 160 MHz 2Mbytes Flash memory STM32U585QII3 STMicroelectronics 1: 11,63 € 667In Stock 2.496Expected 5/31/2027	Mfr. Part No. STM32U585QII3 Mouser Part No 511-STM32U585QII3	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	667In Stock 2.496Expected 5/31/2027	11,63 € 9,12 € 8,12 € 7,81 €	Min.: 1 Mult.: 1 Max.: 160	SMD/SMT	UFBGA-132	ARM Cortex M33	32 bit/16 bit	160 MHz	2 MB	2 kB	12 bit, 14 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U585QII3TR STMicroelectronics 1: 11,68 € 1.577In Stock	Mfr. Part No. STM32U585QII3TR Mouser Part No 511-STM32U585QII3TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	1.577In Stock	Cut Tape 11,68 € 9,15 € 8,47 € 7,83 € View Reel 6,85 € 7,55 € 7,29 € 7,13 € 6,85 € Quote MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	UFBGA-132	ARM Cortex M33			2 MB	2 kB	16 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U585QII6 STMicroelectronics 1: 11,31 € 1.878In Stock	Mfr. Part No. STM32U585QII6 Mouser Part No 511-STM32U585QII6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	1.878In Stock	11,31 € 9,19 € 8,76 € 7,61 € View 7,27 € 6,83 € 6,67 €	Min.: 1 Mult.: 1	SMD/SMT	UFBGA-132	ARM Cortex M33			2 MB	2 kB	16 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory STM32U585RIT6 STMicroelectronics 1: 10,49 € 411In Stock 8.640On Order	Mfr. Part No. STM32U585RIT6 Mouser Part No 511-STM32U585RIT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 160 MHz 2Mbytes Flash memory Learn More about STMicroelectronics stmicro stm32u5	Datasheet	411In Stock 8.640On Order On Order Ship Dates Mfr. No: STM32U585RIT6 Stock: 411 Can Dispatch Immediately On Order: 3.840 Expected 12/28/2026 4.800 Expected 1/25/2027 Factory Lead Time: 52 Weeks	10,49 € 8,19 € 7,42 € 6,97 €	Min.: 1 Mult.: 1 Max.: 260	SMD/SMT	LQFP-64	ARM Cortex M33			2 MB	786 kB	16 bit	14 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz Cortex-M0+ 32 MHz w/320 Kbyte STM32WB15CCU6 STMicroelectronics 1: 4,34 € 1.253In Stock	Mfr. Part No. STM32WB15CCU6 Mouser Part No 511-STM32WB15CCU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz Cortex-M0+ 32 MHz w/320 Kbyte Learn More about STMicroelectronics stm stm32wb1xcc wireless mcus	Datasheet	1.253In Stock	4,34 € 3,77 € 3,56 € 3,28 € View 3,10 € 2,98 € 2,87 € 2,86 €	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-48	ARM Cortex M0+, ARM Cortex M4	32 bit	64 MHz	320 kB	48 kB	12 bit	30 I/O	1.71 V	3.6 V	+ 105 C	Tray
ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz 512 Kbytes STM32WB55CEU6TR STMicroelectronics 1: 7,67 € 512In Stock	Mfr. Part No. STM32WB55CEU6TR Mouser Part No 511-STM32WB55CEU6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz 512 Kbytes Learn More about STMicroelectronics stm stm32wb wireless mcu	Datasheet	512In Stock	Cut Tape 7,67 € 5,46 € 5,17 € 4,76 € View Reel 3,84 € 4,52 € 4,36 € 4,06 € 3,84 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500	SMD/SMT	UFQFPN-48	ARM Cortex M4	32 bit	64 MHz	512 kB	256 kB	12 bit	30 I/O	1.71 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel