STM32U3 Ultra-Low-Power 32-Bit Microcontrollers

STMicroelectronics STM32U3 Ultra-Low-Power Arm® Cortex®-M33 32-Bit Microcontrollers with TrustZone® and a Floating-Point Unit (FPU) operate at up to 96MHz. The single‑precision FPU supports all the Arm single‑precision data‑processing instructions and data types. The Cortex-M33 core also implements a full set of digital signal processing (DSP) instructions and a memory protection unit (MPU) that enhances application security. Based on near-threshold voltage technology, the STM32U3 devices reduce the active consumption down to 10µA/MHz, resulting in far longer battery life for any application.

Results: 61
Select Image Part # Mfr. Description Datasheet Availability Pricing (CHF) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Series Mounting Style Package/Case Core Program Memory Size Data Bus Width ADC Resolution Maximum Clock Frequency Number of I/Os Data RAM Size Supply Voltage - Min Supply Voltage - Max Minimum Operating Temperature Maximum Operating Temperature Packaging
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS 1’600In Stock
CHF 7.49
CHF 5.78
CHF 5.11
Min.: 1
Mult.: 1
Max.: 25
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS 417In Stock
CHF 9.15
CHF 7.14
Min.: 1
Mult.: 1
Max.: 20
STM32U3 LQFP-144 - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS, crypto 1’021In Stock
CHF 7.62
CHF 5.90
CHF 5.21
CHF 4.89
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS, crypto 975In Stock
CHF 7.62
CHF 5.90
CHF 5.21
CHF 4.89
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS 90In Stock
CHF 7.06
CHF 5.47
Min.: 1
Mult.: 1
Max.: 20
STM32U3 LQFP-48 - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS 90In Stock
CHF 7.06
CHF 5.47
Min.: 1
Mult.: 1
Max.: 20
STM32U3 UFQFPN-48 - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS 89In Stock
CHF 7.06
CHF 5.47
Min.: 1
Mult.: 1
Max.: 20
STM32U3 UFQFPN-48 - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS 78In Stock
CHF 7.39
CHF 5.72
Min.: 1
Mult.: 1
Max.: 20
STM32U3 LQFP-64 - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS 98In Stock
CHF 7.39
CHF 5.72
Min.: 1
Mult.: 1
Max.: 20
STM32U3 LQFP-64 - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS, crypto 81In Stock
CHF 7.29
CHF 5.65
CHF 4.99
CHF 4.78
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS, crypto 99In Stock
CHF 7.29
CHF 5.65
CHF 4.99
CHF 4.78
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS, crypto 89In Stock
CHF 7.29
CHF 5.65
CHF 4.99
CHF 4.78
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS, crypto 100In Stock
CHF 7.29
CHF 5.65
CHF 4.99
Min.: 1
Mult.: 1
Max.: 25
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M33 with TrustZone MCU, 96 MHz, 2 MB flash, 640 KB RAM, HSP, I3C, SMPS, crypto 78In Stock
CHF 9.38
CHF 7.33
CHF 6.42
Min.: 1
Mult.: 1
Max.: 25
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 4’996In Stock
Cut Tape
CHF 6.10
CHF 4.47
CHF 4.17
CHF 3.67
Reel
CHF 2.85
Min.: 1
Mult.: 1
: 5’000
STM32U3 Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 7’884In Stock
2’940Expected 1/4/2027
CHF 5.89
CHF 4.45
CHF 3.97
CHF 3.71
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power with FPU Arm Cortex-M33 MCU 96 MHz with 512 Kbytes 1’892In Stock
CHF 4.51
CHF 3.43
CHF 3.00
CHF 2.86
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 2’719In Stock
CHF 5.78
CHF 4.44
CHF 3.89
CHF 3.73
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 1’379In Stock
2’940Expected 11/25/2026
CHF 5.60
CHF 4.29
CHF 3.77
CHF 3.60
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 2’872In Stock
CHF 5.92
CHF 4.56
CHF 4.01
CHF 3.84
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 1’956In Stock
CHF 6.22
CHF 4.59
CHF 4.17
CHF 3.77
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 1’372In Stock
CHF 6.13
CHF 4.64
CHF 4.15
CHF 3.71
CHF 3.04
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 630In Stock
CHF 6.49
CHF 5.01
CHF 4.41
CHF 4.31
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 1’053In Stock
CHF 6.49
CHF 5.01
CHF 4.25
CHF 4.17
Min.: 1
Mult.: 1
STM32U3 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 96 MHz 1 Mbyte of Flash 789In Stock
CHF 5.69
CHF 4.37
CHF 3.84
CHF 3.68
Min.: 1
Mult.: 1
STM32U3 Tray