STMicroelectronics STM32U031K6U6
Manufacturer No:
STM32U031K6U6
Manufacturer:
STMicroelectronics
Package:
Description:
Ultra-low-power Arm Cortex-M0+ MCU with 32 Kbytes of Flash memory, 56 MHz CPU
Quantity:
In Stock :4429
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Expected Shipping：Sat, May 30 - Sun, May 31, 2026
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Date Code：Within 2 Years
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STM32U031K6U6 Information
STMicroelectronics STM32U031K6U6 technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics STM32U031K6U6.
- Type
- Parameter
- 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 Status
- Grade
- Industrial
- Type
- Parameter
- Package Name
- UFQFPN 32 5x5x0.55 mm
- 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 Status
Download datasheets and manufacturer documentation for STMicroelectronics STM32U031K6U6.
Data sheet:
Material Declaration:
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 check), and an extensive range of enhanced I/Os and peripherals connected to APB and AHB buses, and a 32-bit multi-AHB bus matrix.
They also embed protection mechanisms for embedded flash memory and SRAM, such as readout protection and write protection.
The STM32U031x4/6/8 devices offer a 12-bit ADC, a 12-bit DAC, an embedded rail-to-rail analog comparator, one operational amplifier, a low-power RTC, one general-purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, three general-purpose 16-bit timers, and two 16-bit low-power timers
The devices also embed up to 21 capacitive sensing channels.
They also feature standard and advanced communication interfaces, namely three I2Cs, two SPIs, four USARTs and two low-power UARTs.
The STM32U031x4/6/8 operate in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C junction) temperature ranges from a 1.71 to 3.6 V VDD power supply using an internal LDO regulator. A comprehensive set of power-saving modes makes possible the design of low-power applications.
Independent power supplies are supported: analog independent supply input for ADC, DAC, OPAMP and comparator, as well as VBAT input allowing the backup of the RTC and backup registers.
The STM32U031x4/6/8 offer eight packages from 20 to 64 pins.
- 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
- 32-bit Arm®
- 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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