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STMicroelectronics STM32U073MCI6
- Part No.:
- STM32U073MCI6
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 81-UFBGA
- Datasheet:
-
STM32U073MCI6.pdf
- Description:
- IC MCU 32BIT 256KB FLASH 81UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:185
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Product details
Overview
STM32U073MCI6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller operating up to 56 MHz, featuring 256-Kbyte flash memory, 40-Kbyte SRAM with hardware parity, and integrated USB 2.0 full-speed crystal-less interface. It delivers 407 ULPMark™-CP and supports VBAT mode at 130 nA with RTC and 9 backup registers - deployed in battery-powered medical sensors and portable industrial monitors.
For engineers reviewing the STM32U073MCI6 datasheet, STM32U073MCI6 pinout, STM32U073MCI6 application, or STM32U073MCI6 equivalent, key selection criteria include shutdown current (16 nA), LCD segment drive capability (8×48), analog integration (12-bit ADC + DAC + OPAMP + 2 comparators), and PSA Level 1/SESIP Level 3 security certification readiness.
Technical Context
The STM32U073MCI6 implements a tightly coupled Cortex-M0+ core with MPU and ART Accelerator enabling 0-wait-state execution from flash at 56 MHz. Its power architecture includes dual regulators (MR/LPR) and dedicated analog supplies (VDDA, VDDUSB, VBAT) supporting independent domain control for RTC, ADC, DAC, and USB.
It integrates a 32-bit multi-AHB bus matrix, APB peripherals including three low-power 16-bit timers active in Stop mode, and hardware-accelerated capacitive sensing (21 channels). The USB PHY operates without external crystal via internal 48-MHz HSI48 with clock recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm® Cortex®-M0+, 56 MHz max - deterministic real-time execution with MPU for RTOS task isolation |
| Memory | 256-Kbyte flash (code/data), 40-Kbyte SRAM (32 KB + 8 KB) with hardware parity - enables functional safety compliance |
| Power Modes | Shutdown: 16 nA; Stop 2 (w/ RTC): 825 nA; Run (LDO): 52 μA/MHz - optimized for multi-year coin-cell operation |
| Analog Peripherals | 1×12-bit ADC (0.4 µs), 1×12-bit DAC, 1×OPAMP (PGA gain up to 16), 2×comparators - single-chip sensor signal conditioning |
| Communication | USB 2.0 FS crystal-less, 7×USART/LPUART, 4×I²C (up to 1 Mbit/s), 3×SPI - supports mixed-speed peripheral coexistence |
| Security | RDP Level 2 (irreversible), HDP, secure boot, TRNG (NIST SP 800-90B candidate), 5 anti-tamper pins - meets IEC 62443-3-3 SL2 requirements |
| LCD Driver | 8×48 or 4×52 segments with internal step-up converter - eliminates external boost IC in portable displays |
Pinout & Package
STM32U073MCI6 is housed in UFBGA64 (5 × 5 mm, 0.5 mm pitch) package with 64 balls. Pin functions are defined per ball position in DS14548 Rev 2, Section 6.1 (Pinouts), and include dedicated VDDA/VDDIO1/VDDUSB/VBAT domains, 69 GPIOs (68 usable), and 6 wake-up capable pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDUSB, VBAT | Independent power supply inputs | Enables domain-specific voltage scaling and retention during deep sleep - VBAT sustains RTC/backup regs at 1.55–3.6 V |
| PA11/PA12 (DM/DP) | USB 2.0 full-speed differential pair | Crystal-less operation via internal HSI48 + CRS - no external 48-MHz oscillator required |
| PB1/PB2/PB10/PB11 | Capacitive sensing channels (CAPx) | Supports 21-channel touchkey/rotary sensing with hardware charge transfer - no external RC network needed |
| PC13/PC14/PC15 | RTC-related signals (RTC_OUT, OSC32_IN, OSC32_OUT) | Direct connection to 32.768 kHz crystal - enables calendar RTC with ±2 ppm accuracy over -40°C to +125°C |
| PF0–PF15 | General-purpose I/Os with 5 V tolerance | 68 of 69 GPIOs support 5 V-tolerant inputs - simplifies level-shifting in mixed-voltage systems |
Key Features
| Feature | Design Value |
|---|---|
| ART Accelerator | Enables 0-wait-state flash execution at 56 MHz - eliminates performance penalty vs. SRAM code |
| Batch Acquisition Mode (BAM) | Reduces CPU intervention during ADC/DAC sequences - extends low-power runtime in sensor polling |
| Ultra-Low-Power Timers | Three 16-bit LP timers remain active in Stop mode - enables precise periodic wake-up without RTC overhead |
| Integrated Voltage Reference Buffer | Configurable 2.048 V or 2.5 V output - stabilizes ADC/DAC reference without external precision VREF IC |
| USB Crystal-Less Architecture | HSI48 + Clock Recovery System (CRS) achieves ±0.25% USB timing accuracy - reduces BOM cost and PCB area |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition powered by CR2032 battery with multi-year lifespan. IC Role / Device Role / Timing Role: Main controller managing analog front-end (ADC + OPAMP + comparators), LCD display (8×48), and BLE co-processor via USART. Use Value: 16 nA shutdown current and 30 nA standby (no RTC) extend battery life beyond 5 years; integrated DAC calibrates sensor offset in firmware. | Use Scenario: Battery-backed electricity meter with tamper detection, LCD readout, and PLC communication. IC Role / Device Role / Timing Role: Secure metering SoC handling metrology calculations, anti-tamper monitoring (5 pins), and IR/PLC interface via LPUART/I²C. Use Value: PSA Level 1/SESIP Level 3 readiness supports regulatory certification; VBAT domain retains RTC and logs during mains failure. |
| Industrial Wireless Sensor Node | Portable Diagnostic Device |
Use Scenario: LoRaWAN node measuring temperature, humidity, and vibration in remote factory environments. IC Role / Device Role / Timing Role: Low-power host MCU interfacing MEMS sensors via I²C/SPI, driving LCD, and managing LoRa transceiver via UART. Use Value: 4 μs wake-up from Stop mode enables rapid response to sensor events; 21-capacitive-sensing channels support on-device UI buttons. | Use Scenario: Handheld ultrasound probe requiring analog signal chain control and real-time image buffering. IC Role / Device Role / Timing Role: Signal processor coordinating 12-bit ADC sampling, DAC-based beamforming control, and USB data streaming to PC. Use Value: Hardware parity on 40-Kbyte SRAM ensures data integrity during image capture; USB crystal-less avoids timing jitter in streaming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power Arm Cortex-M0+ microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L073RZT6 | Lower max frequency (32 MHz), 192-Kbyte flash, no USB crystal-less, no LCD driver | Lacks integrated USB PHY and LCD controller - requires external components for similar functionality | Select when USB/LCD not required and legacy L0 ecosystem compatibility is prioritized |
| RA4M2N20FHE0 | 48 MHz Cortex-M33, 512-Kbyte flash, 128-Kbyte SRAM, no VBAT-optimized RTC, no integrated LCD | Higher performance but higher active current (110 μA/MHz); no native 130-nA VBAT mode | Select when cryptographic acceleration (AES/SHA) and larger memory are critical, and battery life >3 years is not mandatory |
Compared with STM32L073RZT6 and RA4M2N20FHE0, the STM32U073MCI6 uniquely combines sub-100-nA shutdown, crystal-less USB, and 8×48 LCD drive in a single die - eliminating discrete boost converters, USB oscillators, and touch controllers in space-constrained portable designs.
Availability
STM32U073MCI6 is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial wireless sensor nodes, and portable diagnostic devices requiring stable component supply across extended product lifecycles.
Supply support for STM32U073MCI6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog products for industrial, automotive, and consumer markets.
The STM32U0 series targets ultra-low-power applications demanding <100 nA shutdown, secure boot, and integrated human-interface peripherals - specifically engineered for battery-operated edge devices with 5+ year field deployment.
FAQ
What is the maximum operating temperature range for STM32U073MCI6?
The STM32U073MCI6 operates across –40 °C to +125 °C ambient temperature (junction up to +130 °C), validated per DS14548 Rev 2 Section 4.2. This rating applies to all UFBGA64-packaged variants and supports deployment in harsh industrial enclosures and automotive under-hood auxiliary modules.
Does STM32U073MCI6 support true random number generation?
Yes - it integrates a TRNG module certified as candidate for NIST SP 800-90B entropy source validation. Output is accessible via RCC_RNGCLKSEL and RNG_CR register controls, delivering cryptographically secure seeds for TLS handshakes and secure boot key derivation without external entropy sources.
How many GPIOs are available on the UFBGA64 package?
The STM32U073MCI6 in UFBGA64 provides 69 GPIOs, with 68 fully functional and one dedicated to BOOT0. All 68 are 5 V-tolerant per DS14548 Rev 2 Table 10, enabling direct interfacing with legacy 5 V logic without level shifters in mixed-voltage systems.
Is the LCD controller compatible with segmented glass displays?
Yes - the integrated LCD controller supports static, 2-, 3-, or 4-mux configurations driving up to 8×48 or 4×52 segments. It includes an internal step-up converter (VBOOST) generating up to 5.5 V from VDD, eliminating need for external DC-DC boost ICs in portable display applications.
STM32U073MCI6 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 81-UFBGA
- Series:
- STM32U0
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit
- Speed:
- 56MHz
- Connectivity:
- I2C, IrDA, LINbus, SPI, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, CapSense, DMA, LCD, LVD, PWM, Temp Sensor, TRNG, WDT
- Number of I/O:
- 69
- Program Memory Size:
- 256KB (256K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 40K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b SAR; D/A 1x12b
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32U073MCI6 FAQ
1.How can I place an order for STM32U073MCI6 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32U073MCI6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STM32U073MCI6 reliable?
The price and inventory of STM32U073MCI6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32U073MCI6 is usually 5 days.
3.What payment methods are accepted for STM32U073MCI6?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32U073MCI6 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32U073MCI6?
STM32U073MCI6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32U073MCI6 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STM32U073MCI6?
For technical support, including STM32U073MCI6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32U073MCI6 requirements.
6.How does Aetrix verify that STM32U073MCI6 is sourced from the original manufacturer or authorized distributors?
All STM32U073MCI6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STM32U073MCI6 meets industry standards.
7.What is the process for return or replacement of STM32U073MCI6?
All STM32U073MCI6 units undergo pre-shipment inspection (PSI). If there is an issue with STM32U073MCI6, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STM32U073MCI6 part is unused and in its original packaging.
Return procedure for STM32U073MCI6:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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