STMicroelectronics STM32U031K8U3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.69 | $4.69 |
| 15+ | $1.08 | $16.20 |
| 25+ | $1.05 | $26.25 |
| 50+ | $0.99 | $49.50 |
| 100+ | $0.88 | $88.00 |
| N+ | $0.18 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32U0 |
| Packaging | Bulk | |
| Core Processor | ARM® Cortex®-M0+ |
| Core Size | 32-Bit |
| Speed | 56MHz |
| Connectivity | I2C, IrDA, LINbus, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, CapSense, DMA, LVD, POR, PWM, Temp Sensor, TRNG, WDT |
| Number of I/O | 27 |
| Program Memory Size | 64KB (64K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 12K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| Data Converters | A/D 16x12b SAR; D/A 1x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Memory Type | Surface Mount |
| Grade | - |
| Qualification | - |
| Package / Case | 32-UFQFPN (5x5) |
| Supplier Device Package | 32-UFQFN Exposed Pad |
The STM32U031K8U3 from STMicroelectronics is a 32-bit MCU built on the ARM Cortex-M0+ core, running at 56MHz. It provides 64KB flash and 12KB SRAM in a compact 32-UFQFN package. With a wide voltage range of 1.71V to 3.6V and integrated CapSense, TRNG, and multiple low-power features, it is engineered for energy-sensitive and secure embedded applications.
- Ultra-low power operation: 1.71V minimum supply extends battery life in portable designs.
- Integrated CapSense: Eliminates external touch controllers, reducing PCB area and cost.
- Hardware TRNG: Provides true random numbers for secure communication protocols.
- Wide temperature range: -40°C to 125°C suits automotive and industrial environments.
Portable Medical Devices
The 1.71V minimum supply and low-power modes enable continuous glucose monitors and pulse oximeters to run for months on a coin cell.
Industrial Sensor Nodes
With a 56MHz Cortex-M0+ core and 12KB RAM, it processes vibration and temperature data locally, reducing host processor load.
Secure IoT Peripherals
The TRNG and brown-out reset ensure reliable cryptographic key generation and safe power-down sequences for smart locks.
Battery-Powered HMI Panels
CapSense support allows capacitive touch interfaces without external ICs, saving BOM cost in thermostats and wearables.
Motor Control Feedback
PWM timers and DMA enable closed-loop speed control in small fans and pumps, with the temp sensor providing overheat protection.
Smart Building Sensors
The -40°C to 125°C range suits HVAC duct sensors, while the WDT ensures autonomous recovery in harsh environments.
- Q: What is the operating voltage range of the STM32U031K8U3?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: Does this MCU include a hardware random number generator?
- A: Yes, it features a TRNG for secure key generation and cryptographic operations.
- Q: What package is available?
- A: It comes in a 32-UFQFN exposed pad package, ideal for compact PCB designs.
- Q: Can it handle capacitive touch sensing?
- A: Yes, it integrates CapSense technology for touch buttons and sliders.
STM32U031K8U3.pdf
- Q: What is the operating voltage range of the STM32U031K8U3?
- A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
- Q: Does this MCU include a hardware random number generator?
- A: Yes, it features a TRNG for secure key generation and cryptographic operations.
- Q: What package is available?
- A: It comes in a 32-UFQFN exposed pad package, ideal for compact PCB designs.
- Q: Can it handle capacitive touch sensing?
- A: Yes, it integrates CapSense technology for touch buttons and sliders.
