STM32U031K6U3

Ultra-low-power Arm Cortex-M0+ MCU with 32 Kbytes of Flash memory, 56 MHz CPU

Parameters

Supply Voltage Min Volt	1.65
Supply Voltage Max Volt	3.6
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	85.0
Core	Arm Cortex-M0+
ECCN US	3A991.a.2
ECCN EU	NEC
Packing Type	Tray
RoHs compliant	Ecopack2
Grade	Industrial
Package Name	UFQFPN 32 5x5x0.55 mm

Description

The STM32U031x4/6/8 devices are ultra-low-power microcontrollers based on the high-performance Arm® Cortex®-M0+ 32-bit RISC core operating at a frequency of up to 56 MHz.The STM32U031x4/6/8 devices embed high-speed memories (up to 64-Kbyte flash memory and 12-Kbyte SRAM with hardware parity...
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Key features

Key features
Includes ST state-of-the-art patented technology. Ultra-low-power features (ultra-low-power devices) 1.71 V to 3.6 V power supply -40 °C to 85/125 °C temperature range VBAT mode: 130 nA (with RTC and 9 x 32-bit backup registers) Shutdown mode (4 wake-up pins): 16 nA Standby mode (4 wake-up pins): 160 nA with RTC, 30 nA without RTC Stop 2 mode: 630 nA with RTC, 515 nA without RTC Run mode (LDO mode): 52 μA/MHz Batch acquisition mode (BAM) 4 μs wake-up from Stop mode Brownout reset (BOR) Core 32-bit Arm^® Cortex^®-M0+ CPU, frequency up to 56 MHz ART Accelerator 1-Kbyte instruction cache allowing 0-wait-state execution from flash memory Benchmarks 1.13 DMIPS/MHz (Drystone 2.1) 134 CoreMark^® (2.4 CoreMark/MHz at 56 MHz) 430 ULPMark™-CP 167 ULPMark™-PP 20.3 ULPMark™-CM Memories Up to 64-Kbyte single bank flash memory, proprietary code readout protection 12-Kbyte SRAM with hardware parity check Rich analog peripherals (independent supply) 1x 12-bit ADC (0.4 µs conversion time), up to 16-bit with hardware oversampling 1x 12-bit DAC output channel, low-power sample and hold 1x general-purpose operational amplifier with built-in PGA (variable gain up to 16) 1x ultra-low-power comparator General-purpose inputs/outputs Up to 53 fast I/Os, most of them 5 V‑tolerant 16 communication interfaces 6x USARTs/LPUARTs (SPI, ISO 7816, LIN, IrDA, modem) 3x I2C interfaces supporting Fast-mode and Fast-mode Plus (up to 1 Mbit/s) 2x SPIs, plus 4x USARTs in SPI mode IRTIM (Infrared interface) Security Customer code protection Robust read out protection (RDP): 3 protection level states and password-based regression (128-bit PSWD) Hardware protection feature (HDP) Secure boot True random number generation, candidate for NIST SP 800-90B certification Candidate for Arm^® PSA level 1 and SESIP level 3 certifications 5 passive anti-tamper pins 96-bit unique ID Clock management 4 to 48 MHz crystal oscillator 32 kHz crystal oscillator for RTC (LSE) Internal 16 MHz factory-trimmed RC (±1%) Internal low-power 32 kHz RC (±5%) Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy) PLL for system clock, ADC 9 timers, RTC, and 2 watchdogs 1x 16-bit advanced motor-control, 1x 32-bit and 3x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer RTC with hardware calendar, alarms and calibration CRC calculation unit Up to 18 capacitive sensing channels Supporting touchkey, linear and rotary touch sensors 7-channel DMA controller Flexible mapping (DMAMUX) Debug Development support: serial wire debug (SWD) All packages are ECOPACK2 compliant.

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Parameters

Supply Voltage Min Volt	1.65
Supply Voltage Max Volt	3.6
Operating Temp Min Celsius	-40.0
Operating Temp Max Celsius	85.0
Core	Arm Cortex-M0+
ECCN US	3A991.a.2
ECCN EU	NEC
Packing Type	Tray
RoHs compliant	Ecopack2
Grade	Industrial
Package Name	UFQFPN 32 5x5x0.55 mm

Description

Key features

Key features
Includes ST state-of-the-art patented technology. Ultra-low-power features (ultra-low-power devices) 1.71 V to 3.6 V power supply -40 °C to 85/125 °C temperature range VBAT mode: 130 nA (with RTC and 9 x 32-bit backup registers) Shutdown mode (4 wake-up pins): 16 nA Standby mode (4 wake-up pins): 160 nA with RTC, 30 nA without RTC Stop 2 mode: 630 nA with RTC, 515 nA without RTC Run mode (LDO mode): 52 μA/MHz Batch acquisition mode (BAM) 4 μs wake-up from Stop mode Brownout reset (BOR) Core 32-bit Arm^® Cortex^®-M0+ CPU, frequency up to 56 MHz ART Accelerator 1-Kbyte instruction cache allowing 0-wait-state execution from flash memory Benchmarks 1.13 DMIPS/MHz (Drystone 2.1) 134 CoreMark^® (2.4 CoreMark/MHz at 56 MHz) 430 ULPMark™-CP 167 ULPMark™-PP 20.3 ULPMark™-CM Memories Up to 64-Kbyte single bank flash memory, proprietary code readout protection 12-Kbyte SRAM with hardware parity check Rich analog peripherals (independent supply) 1x 12-bit ADC (0.4 µs conversion time), up to 16-bit with hardware oversampling 1x 12-bit DAC output channel, low-power sample and hold 1x general-purpose operational amplifier with built-in PGA (variable gain up to 16) 1x ultra-low-power comparator General-purpose inputs/outputs Up to 53 fast I/Os, most of them 5 V‑tolerant 16 communication interfaces 6x USARTs/LPUARTs (SPI, ISO 7816, LIN, IrDA, modem) 3x I2C interfaces supporting Fast-mode and Fast-mode Plus (up to 1 Mbit/s) 2x SPIs, plus 4x USARTs in SPI mode IRTIM (Infrared interface) Security Customer code protection Robust read out protection (RDP): 3 protection level states and password-based regression (128-bit PSWD) Hardware protection feature (HDP) Secure boot True random number generation, candidate for NIST SP 800-90B certification Candidate for Arm^® PSA level 1 and SESIP level 3 certifications 5 passive anti-tamper pins 96-bit unique ID Clock management 4 to 48 MHz crystal oscillator 32 kHz crystal oscillator for RTC (LSE) Internal 16 MHz factory-trimmed RC (±1%) Internal low-power 32 kHz RC (±5%) Internal multispeed 100 kHz to 48 MHz oscillator, auto-trimmed by LSE (better than ±0.25 % accuracy) PLL for system clock, ADC 9 timers, RTC, and 2 watchdogs 1x 16-bit advanced motor-control, 1x 32-bit and 3x 16-bit general purpose, 2x 16-bit basic, 2x low-power 16-bit timers (available in Stop mode), 2x watchdogs, SysTick timer RTC with hardware calendar, alarms and calibration CRC calculation unit Up to 18 capacitive sensing channels Supporting touchkey, linear and rotary touch sensors 7-channel DMA controller Flexible mapping (DMAMUX) Debug Development support: serial wire debug (SWD) All packages are ECOPACK2 compliant.