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STMicroelectronics STM32L476MGY6MTR
- Part No.:
- STM32L476MGY6MTR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 81-UFBGA, WLCSP
- Datasheet:
-
STM32L476MGY6MTR.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 81WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
STM32L476MGY6MTR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 80 MHz (100 DMIPS), featuring 1 MB flash, 128 KB SRAM, USB OTG FS, LCD controller, and integrated SMPS support. It delivers 39 µA/MHz in SMPS-run mode, 420 nA Standby with RTC, and supports capacitive touch sensing - deployed in battery-powered medical wearables requiring long runtime and display capability.
For engineers reviewing the STM32L476MGY6MTR datasheet, STM32L476MGY6MTR pinout, STM32L476MGY6MTR application, or STM32L476MGY6MTR equivalent, key selection criteria include ultra-low-power mode current (e.g., 30 nA Shutdown), LCD driver capability (8×40/4×44), dual 12-bit DACs, CAN 2.0B interface, and UFBGA144 package compatibility for space-constrained designs.
Technical Context
This MCU integrates an Adaptive Real-time Accelerator (ART™) enabling zero-wait-state execution from flash at 80 MHz, alongside three independent PLLs for system, USB, and audio clock domains. Its FlexPowerControl architecture supports dynamic voltage scaling and multiple low-power modes - including Stop 2 (1.1 µA) and Standby with RTC (420 nA) - managed via hardware-controlled power state transitions.
The device features a full interconnect matrix for concurrent peripheral access, dual 12-bit DACs with sample-and-hold, two rail-to-rail op-amps with programmable gain, and 24-channel capacitive sensing (TSC) supporting touchkey and rotary sensors - all operating from independent analog supplies for noise isolation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU and DSP instructions, 80 MHz max frequency (100 DMIPS) |
| Memory | 1 MB dual-bank flash (read-while-write), 128 KB SRAM (32 KB with parity) |
| Low-Power Run | 39 µA/MHz @ 3.3 V with external SMPS - enables >10-year battery life in sensor nodes |
| Standby + RTC | 420 nA - maintains real-time calendar and backup registers during extended sleep |
| ADC | Three 12-bit ADCs, 5 Msps total, up to 16-bit effective resolution via hardware oversampling |
| LCD Driver | Supports 8×40 or 4×44 segments with integrated step-up converter - eliminates external bias supply |
| Package | UFBGA144 (10 × 10 mm, 0.8 mm pitch) - suitable for compact portable devices |
Pinout & Package
STM32L476MGY6MTR is housed in a 144-pin Ultra-Fine Pitch Ball Grid Array (UFBGA144) package with 0.8 mm ball pitch and 10 mm × 10 mm body size, compliant with ECOPACK2 environmental standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main digital supply | 1.71–3.6 V input; powers core, SRAM, and most peripherals |
| VSS | Digital ground | Reference return for digital I/O and core logic |
| VDDA | Analog supply | Separate 1.62–3.6 V rail for ADC, DAC, op-amps, and comparators |
| VSSA | Analog ground | Isolated ground plane for analog circuits to minimize noise coupling |
| PC13 | RTC oscillator output | Drives 32.768 kHz crystal for hardware calendar and alarms |
| PA0 | Wake-up input / ADC1_IN0 | Configurable as low-power wake-up pin or primary ADC channel |
| PA9/PA10 | USART1_TX/USART1_RX | Default UART interface for debug or host communication |
| PA11/PA12 | USB_DM/USB_DP | Dedicated full-speed USB OTG FS transceiver pins with internal pull-ups |
| PF10 | LCD_COM0 | First common segment driver for integrated LCD controller |
| PB0/PB1 | ADC1_IN8/ADC1_IN9 | Additional ADC inputs supporting differential measurements |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables 30 nA Shutdown mode with 5 wakeup pins - ideal for intermittent-sensing IoT endpoints |
| ART Accelerator™ | Eliminates flash wait states at 80 MHz, reducing active power by ~15% vs. non-accelerated execution |
| Integrated SMPS support | External switch-mode power supply interface reduces run-mode current to 39 µA/MHz vs. 100 µA/MHz with LDO |
| Capacitive Touch Sensing (TSC) | 24-channel hardware-accelerated touch controller - supports up to 12 self-capacitance or 24 mutual-capacitance electrodes |
| True Random Number Generator (RNG) | FIPS-compliant entropy source for secure key generation in embedded TLS stacks |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG and SpO₂ monitoring with OLED display and Bluetooth LE telemetry. IC Role / Device Role / Timing Role: Main application processor managing sensor acquisition, LCD rendering, USB charging negotiation, and low-power scheduling. Use Value: 420 nA Standby with RTC ensures accurate timekeeping between 2-hour sensor bursts; LCD controller drives 4×44 segments without external bias IC. | Use Scenario: Battery-backed electricity meter with tamper detection, pulse counting, and RF mesh reporting. IC Role / Device Role / Timing Role: System-on-chip handling metrology ADC sampling, RTC-based billing intervals, and CAN/LPUART communication to concentrator. Use Value: Dual 12-bit DACs generate precise calibration references; CAN 2.0B interface connects to legacy grid infrastructure. |
| Portable Medical Infusion Pump | Industrial HMI Panel |
Use Scenario: Closed-loop drug delivery with pressure sensing, motor control, and touch-enabled UI. IC Role / Device Role / Timing Role: Real-time controller executing PID algorithms, driving stepper motor via advanced timers (TIM1/TIM8), and managing capacitive touch overlay. Use Value: Two 16-bit advanced motor-control timers with dead-time insertion ensure safe H-bridge switching; TSC supports glove-compatible touch detection. | Use Scenario: DIN-rail mounted panel with 4.3" TFT display, CAN bus diagnostics, and SD card logging. IC Role / Device Role / Timing Role: Graphics-capable MCU rendering GUI via FSMC interface while servicing CAN messages and SDMMC data writes. Use Value: Flexible static memory controller supports 8-/16-bit parallel NOR/PSRAM; Quad SPI interface enables fast firmware updates from serial flash. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L476VGT6 | LQFP100 package (14×14 mm), no LCD controller, reduced I/O count (82 vs. 114) | Suitable for non-display applications where PCB area and cost are prioritized over integrated display drive | Select when LCD functionality is unnecessary and leaded packaging simplifies assembly or rework |
| STM32L4R5ZIT6 | Higher flash (2 MB), Chrom-ART accelerator, no LCD, adds AES-256 and SHA-256 crypto engines | Targeted at secure edge-node applications requiring firmware signing and encrypted OTA updates | Choose when cryptographic acceleration and larger code space outweigh LCD and ultra-low-power analog feature set |
Compared with STM32L476VGT6, the MGY6MTR offers LCD integration and finer-grained power gating; versus STM32L4R5ZIT6, it trades crypto engines for lower active current and analog-rich peripherals - making it optimal for display-centric, battery-sensitive systems.
Availability
STM32L476MGY6MTR is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, portable medical infusion pumps, and industrial HMI panels requiring stable component supply across multi-year production cycles.
Supply support for STM32L476MGY6MTR 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 automotive-grade components.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance per µA, with emphasis on energy harvesting, battery longevity, and mixed-signal integration - especially in medical, metering, and portable industrial equipment.
FAQ
What is the maximum operating temperature range for STM32L476MGY6MTR?
The STM32L476MGY6MTR is rated for operation from –40 °C to +105 °C (industrial grade), with extended qualification up to +125 °C. This rating is validated per ST's production test flow and applies to all UFBGA144 variants in the L476xx family, ensuring reliability in enclosed medical enclosures or outdoor metering housings.
Does STM32L476MGY6MTR support external QSPI flash memory?
Yes - it integrates a dedicated Quad SPI (QUADSPI) memory interface supporting single/dual/quad I/O protocols at up to 80 MHz, enabling direct XIP execution and fast firmware updates. The interface is independent of the FSMC and supports octal DDR mode in compatible devices, though STM32L476MGY6MTR implements standard quad-SPI only.
Can the internal SMPS controller drive an external DC-DC converter?
No - STM32L476MGY6MTR does not include an internal SMPS controller. Instead, it provides VDD12 and VDD12_IO supply pins and control signals (SMPS_EN, SMPS_VOS) to interface with external buck converters (e.g., ST's STLQ015), enabling system-level SMPS operation and achieving 39 µA/MHz run-mode efficiency.
How many independent ADC instances does STM32L476MGY6MTR support?
It integrates three independent 12-bit ADCs (ADC1, ADC2, ADC3), each with its own data register, DMA request line, and configurable sampling time. All three support hardware oversampling (up to 256×) for enhanced resolution, and ADC1/ADC2 share common channels while ADC3 operates fully autonomously - enabling simultaneous multi-sensor acquisition.
STM32L476MGY6MTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 81-UFBGA, WLCSP
- Series:
- STM32L4
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M4
- Core Size:
- 32-Bit Single-Core
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, PWM, WDT
- Number of I/O:
- 65
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L476MGY6MTR FAQ
1.How can I place an order for STM32L476MGY6MTR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L476MGY6MTR 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 STM32L476MGY6MTR reliable?
The price and inventory of STM32L476MGY6MTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L476MGY6MTR is usually 5 days.
3.What payment methods are accepted for STM32L476MGY6MTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L476MGY6MTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L476MGY6MTR?
STM32L476MGY6MTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L476MGY6MTR 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 STM32L476MGY6MTR?
For technical support, including STM32L476MGY6MTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L476MGY6MTR requirements.
6.How does Aetrix verify that STM32L476MGY6MTR is sourced from the original manufacturer or authorized distributors?
All STM32L476MGY6MTR 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 STM32L476MGY6MTR meets industry standards.
7.What is the process for return or replacement of STM32L476MGY6MTR?
All STM32L476MGY6MTR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L476MGY6MTR, 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 STM32L476MGY6MTR part is unused and in its original packaging.
Return procedure for STM32L476MGY6MTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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