STM32U3 Ultra-Low-Power Embedded Microcontrollers
STMicroelectronics ultra-low-power devices can extend battery life in activity-tracking applications
Built on innovative subthreshold technology, the STMicroelectronics STM32U3x family of ultra-low-power devices can extend battery life in activity-tracking applications by up to seven times compared with the previous generation. Powered by an Arm® Cortex®-M33 and offering expanded memory options (up to 2 MB of Flash and 640 KB of SRAM), the STM32U3 series supports both standard and extended industrial temperature ranges (-40°C to +85°C and up to +105°C), making it well-suited for demanding industrial environments. The STM32U3B/C5x variants also integrate advanced cryptographic capabilities.
- Hardware signal processor with high-speed processing (HSP)
- Lower power consumption with subthreshold technology
- Higher security
- Asymmetric key hardware protection
- In ST factory certificate provisioning
- New and updated IP: I3C and CAN FD
- Lower cost vs STM32U5
- Industrial
- Medical
- Smart metering
- Consumer
STM32U3 Ultra-Low-Power Embedded Microcontrollers
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
![]() | ![]() | STM32U3C5ZIT6Q | ULTRA-LOW-POWER WITH FPU ARM COR | 100 - Immediate | $79.56 | View Details |
![]() | ![]() | STM32U3C5RIT6Q | ULTRA-LOW-POWER WITH FPU ARM COR | 98 - Immediate | $64.62 | View Details |
![]() | ![]() | STM32U3C5RIT6 | ULTRA-LOW-POWER WITH FPU ARM COR | 97 - Immediate | $64.62 | View Details |
![]() | ![]() | STM32U3C5CIU6Q | ULTRA-LOW-POWER WITH FPU ARM COR | 99 - Immediate | $61.91 | View Details |
![]() | ![]() | STM32U3C5CIU6 | ULTRA-LOW-POWER WITH FPU ARM COR | 100 - Immediate | $61.91 | View Details |
![]() | ![]() | STM32U3C5CIT6Q | ULTRA-LOW-POWER WITH FPU ARM COR | 93 - Immediate | $61.91 | View Details |
![]() | ![]() | STM32U3C5CIT6 | ULTRA-LOW-POWER ARM CORTEX-M33 W | 10 - Immediate | $61.91 | View Details |
![]() | ![]() | STM32U3B5CIT6 | ULTRA-LOW-POWER ARM CORTEX-M33 W | 0 - Immediate | $59.94 | View Details |




