Document
STM32U535xx
Ultra-low-power Arm® Cortex®-M33 MCU+TrustZone®+FPU, 240 DMIPS, up to 512 KB flash memory, 274 KB SRAM
Datasheet - production data
Features
Includes ST state-of-the-art patented technology
Ultra-low-power with FlexPowerControl
• 1.71 V to 3.6 V power supply • –40 °C to +85/125 °C temperature range • Low-power background-autonomous mode
(LPBAM): autonomous peripherals with DMA, functional down to Stop 2 mode • VBAT mode: supply for RTC, 32 x 32-bit backup registers and 2-Kbyte backup SRAM • 90 nA Shutdown mode (23 wake-up pins) • 200 nA Standby mode (23 wake-up pins) • 370 nA Standby mode with RTC • 1.4 μA Stop 3 mode with 16-Kbyte SRAM • 2.2 µA Stop 3 mode with full SRAM • 3.0 µA Stop 2 mode with 16-Kbyte SRAM • 4.6 µA Stop 2 mode with full SRAM • 16.3 μA/MHz Run mode @ 3.3 V
Core
• Arm® 32-bit Cortex®-M33 CPU with TrustZone®, MPU, DSP, and FPU
ART Accelerator
• 8-Kbyte instruction cache allowing 0-wait-state execution from flash and external memories: up to 160 MHz, 240 DMIPS
• 4-Kbyte data cache for external memories
Power management
• Embedded regulator (LDO) and SMPS step-down converter supporting switch on-the-fly and voltage scaling
Benchmarks
• 1.5 DMIPS/MHz (Drystone 2.1)
LQFP48 (7 x 7 mm) UFQFPN48 LQFP64 (10 x 10 mm) (7 x 7 mm) LQFP100 (14 x 14 mm)
WLCSP56 (3.38 x 3.38 mm)
WLCSP72 (3.38 x 3.38 mm)
UFBGA64 (5 x 5 mm) UFBGA100 (7 x 7 mm)
• 651 CoreMark® (4.07 CoreMark®/MHz)
• 464 ULPMark™-CP
• 125 ULPMark™-PP
• 54 ULPMark™-CM
• 137000 SecureMark™-TLS
Memories
• Up to 512-Kbyte flash memory with ECC, 2 banks read-while-write, and 100 kcycles
• 274-Kbyte SRAM including up to 64-Kbyte SRAM with ECC ON
• 1 Octo-SPI memory interface
Security
• Arm® TrustZone® and securable I/Os, memories and peripherals
• Flexible life cycle scheme with RDP and password protected debug
• Root of trust thanks to unique boot entry and secure hide protection area (HDP)
• Secure firmware installation (SFI) thanks to embedded root-secure services (RSS)
• Secure firmware upgrade support with TF-M
• HASH hardware accelerator
• True random number generator, NIST SP800-90B compliant
• 96-bit unique ID
• 512-byte OTP (one-time programmable)
• Active tampers
Clock management
• 4 to 50 MHz crystal oscillator
December 2023
This is information on a product in full production.
DS14217 Rev 4
1/301
www.st.com
STM32U535xx
• 32 kHz crystal oscillator for RTC (LSE) • Internal 16 MHz factory-trimmed RC (±1%) • Internal low-power 32 kHz RC (±5%) • 2 internal multispeed 100 kHz to 48 MHz
oscillators, including one auto-trimmed by LSE (better than ±0.25% accuracy)
• Internal 48 MHz with clock recovery • 3 PLL for system clock, USB, audio, ADC
General-purpose input/outputs
• Up to 82 fast I/Os with interrupt capability most 5V-tolerant and up to 14 I/Os with independent supply down to 1.08 V
16- and 4-channel DMA controllers, functional in Stop mode
Graphic features
• 1 digital camera interface
Mathematical co-processor
• CORDIC for trigonometric funct.