STM32L552xx Ultra-low-power Arm Cortex -M33 32-bit MCU+TrustZone +FPU , 165 DMIPS, up to 512 KB Flash memory, 256 KB SRAM, SMPS Datasheet - production data Features Ultra-low-power with FlexPowerControl 1.71 V to 3.6 V power supply UFQFPN48 (7 x 7 mm) LQFP48 (7 x 7 mm) LQFP64 (10 x 10 mm) (*) -40 C to 85/125 C temperature range LQFP100 (14 x14 mm) LQFP144 (20 x 20mm) Batch acquisition mode (BAM) FBGA 187 nA in VBAT mode: supply for RTC and 32x32-bit backup registers 17 nA Shutdown mode (5 wakeup pins) WLCSP81 (4.36 x 4.07 mm) UFBGA132 (7 x 7 mm) 108 nA Standby mode (5 wakeup pins) (*): Silhouette shown above. 222 nA Standby mode with RTC 3.16 A Stop 2 with RTC Memories 106 A/MHz Run mode (LDO mode) Up to 512-Kbyte Flash, two banks read-while- 62 A/MHz Run mode 3 V write (SMPS step-down converter mode) 256 Kbytes of SRAM including 64 Kbytes with 5 s wakeup from Stop mode hardware parity check Brownout reset (BOR) in all modes except External memory interface supporting SRAM, Shutdown PSRAM, NOR, NAND and FRAM memories OCTOSPI memory interface Core Arm 32-bit Cortex -M33 CPU with Security TrustZone and FPU Arm TrustZone and securable I/Os, memories and peripherals ART Accelerator Flexible life cycle scheme with RDP (readout 8-Kbyte instruction cache allowing 0-wait-state protection) execution from Flash memory and external Root of trust thanks to unique boot entry and memories frequency up to 110 MHz, MPU, hide protection area (HDP) 165 DMIPS and DSP instructions SFI (secure firmware installation) thanks to Performance benckmark embedded RSS (root secure services) 1.5 DMIPS/MHz (Drystone 2.1) Secure firmware upgrade support with TF-M 442 CoreMark (4.02 CoreMark /MHz) HASH hardware accelerator Active tamper and protection against Energy benchmark temperature, voltage and frequency attacks 370 ULPMark-CP score True random number generator NIST SP800- 54 ULPMark-PP score 90B compliant 27400 SecureMark-TLS score 96-bit unique ID October 2020 DS12737 Rev 6 1/340 This is information on a product in full production. www.st.comSTM32L552xx 512-byte OTP (one-time programmable) for Up to 19 communication peripherals user data 1x USB Type-C/ USB power delivery controller General-purpose input/outputs 1x USB 2.0 full-speed crystal less solution, Up to 114 fast I/Os with interrupt capability LPM and BCD most 5 V-tolerant and up to 14 I/Os with 2x SAIs (serial audio interface) independent supply down to 1.08 V 4x I2C FM+(1 Mbit/s), SMBus/PMBus Power management 6x USARTs (ISO 7816, LIN, IrDA, modem) Embedded regulator (LDO) with three 3x SPIs (7x SPIs with USART and OCTOSPI in configurable range output to supply the digital SPI mode) circuitry 1x FDCAN controller Embedded SMPS step-down converter 1x SDMMC interface External SMPS support 2 DMA controllers Clock management 14 DMA channels 4 to 48 MHz crystal oscillator Up to 22 capacitive sensing channels 32 kHz crystal oscillator for RTC (LSE) Internal 16 MHz factory-trimmed RC (1%) Support touch key, linear and rotary touch sensors Internal low-power 32 kHz RC (5%) Internal multispeed 100 kHz to 48 MHz Rich analog peripherals (independent oscillator, auto-trimmed by LSE (better than supply) 0.25% accuracy) 2x 12-bit ADC 5 Msps, up to 16-bit with Internal 48 MHz with clock recovery hardware oversampling, 200 A/Msps 3 PLLs for system clock, USB, audio, ADC 2x 12-bit DAC outputs, low-power sample and hold Up to 16 timers and 2 watchdogs 2x operational amplifiers with built-in PGA 16x timers: 2 x 16-bit advanced motor-control, 2x ultra-low-power comparators 2 x 32-bit and 5 x 16-bit general purpose, 2x 16-bit basic, 3x low-power 16-bit timers 4x digital filters for sigma delta modulator (available in Stop mode), 2x watchdogs, 2x SysTick timer CRC calculation unit RTC with hardware calendar, alarms and Debug calibration Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell (ETM) Table 1. Device summary Reference Part numbers STM32L552CC, STM32L552CE, STM32L552ME, STM32L552QC, STM32L552QE, STM32L552xx STM32L552RC, STM32L552RE, STM32L552VC, STM32L552VE, STM32L552ZC, STM32L552ZE 2/340 DS12737 Rev 6