STM32U5 series ultra-low power MCU from STM32U5 Semiconductor
STM32U5 series ultra-low power MCU of STM32U5 semiconductor is based on Arm ® Advanced energy-saving microcontroller for Cortex-M33 ®. These devices meet the most stringent power/performance requirements for intelligent applications. These applications include wearable devices, personal medical devices, home automation, and industrial sensors. The STM32U5 series microcontroller features up to 2MB of flash memory (dual group) and 786KB of SRAM, taking performance to a new level. The STM32U5 is a large product combination with 8 packages (from 48 to 169 pins), supporting temperatures up to 125 ° C.

Achieving first-class power consumption
Energy benchmark:
535 Ultra High Power Mark CP
149 ultra-high photoelectric
133000 Safety Signs - TLS
LPBAM (Low Power Backend Autonomous Mode) is an innovative autonomous power mode that saves power by enabling direct memory access (LPDMA Low Power Direct Memory Access) and ensuring that peripherals remain operational when most devices are in stop mode.
Embedded SMPS (Switching Power Supply) step-down converter (optional)
Key performance indicators include:
110nA in shutdown mode
300nA in standby mode
When stopping mode 3, it is 1.7 μ A and SRAM is 16K bytes
6.6 μ A in stop mode 2, with 786KB SRAM
As low as 19 μ A/MHz in active mode
Enhanced security
Based on the network security function of STM32L5 MCU, its Arm Cortex-M33 core integrates Arm's TrustZone ® The STM32U5 series introduces the most advanced innovations in technology and STM32U5 semiconductor specific safety feature sets:
AES encryption and public key accelerator (PKA) now have side channel hardware resistance
Use Hardware Unique Key (HUK) to protect data storage
Active tampering detection. Internal monitoring can erase confidential data in the event of disturbance attacks, helping to meet the requirements of the PCI Security Standards Committee (PCI SSC) for Point of Sale (POS) applications.
Guarantee level 3 for PSA and SESIP (Internet of Things Platform Security Assessment Standards)
Integration, size, and performance
Ensure enhanced application responsiveness:
Arm Cortex-M33 with a running frequency of 160MHz
New ST ART Accelerator: Operates on internal and external flash memory (8 KB instruction cache)
240 DMIPS and 651 CoreMark scores
Up to 0.5 MB on-chip flash memory can extend the cycle life by 100000 read/write cycles, ensuring reliable storage of user data.
High integration and innovation: Large capacity memory with ECC and SRAM, USB Type-C with power supply controller, CAN FD, 14 bit and 12 bit ADC, multifunctional digital filter (MDF) and audio digital filter (ADF)
Large product portfolio: 8 packaging types (LQFP48, QFN48, LQFP64, WLCSP90, LQFP100, UFBGA132, LQFP144, and UFBGA169)