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STMicroelectronics STM32L462VEI6TR
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- Part No.:
- STM32L462VEI6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-UFBGA
- Datasheet:
-
STM32L462VEI6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLSH 100UFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,244
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Product details
Overview
STM32L462VEI6TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit microcontroller with FPU, operating up to 80 MHz (100 DMIPS), featuring 512 KB Flash, 160 KB SRAM, and integrated analog peripherals including 12-bit ADC (5 Msps), dual 12-bit DACs, op-amp with PGA, and hardware AES encryption. It targets battery-powered IoT sensors and portable medical devices requiring long runtime and secure data handling.
For engineers reviewing the STM32L462VEI6TR datasheet, STM32L462VEI6TR pinout, STM32L462VEI6TR application, or STM32L462VEI6TR equivalent, key selection criteria include its 2.05 µA Stop 2 mode current, 145 nA VBAT mode, 83 GPIOs (most 5 V-tolerant), USB 2.0 full-speed crystal-less support, and LQFP100 package compatibility for industrial-grade layout stability.
Technical Context
The STM32L462VEI6TR implements FlexPowerControl architecture with seven low-power modes, including Shutdown (22 nA), Standby with RTC (375 nA), and Stop 2 (2.05 µA), enabled by independent voltage regulators and dynamic voltage scaling. Its ART Accelerator™ delivers zero-wait-state execution from Flash at 80 MHz, while the interconnect matrix enables concurrent peripheral access without bus contention.
It integrates dual PLLs-one for system clock (up to 80 MHz), one dedicated to audio/ADC-plus three clock sources (HSE, LSE, MSI auto-trimmed to ±0.25%), and a hardware random number generator compliant with NIST SP800-90B. The device supports true batch acquisition mode (BAM) for sensor hub operation with CPU in deep sleep.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 80 MHz max, 100 DMIPS, DSP instructions |
| Memory | 512 KB Flash (single-bank, code readout protection), 160 KB SRAM (32 KB with parity) |
| Low-Power Performance | 2.05 µA in Stop 2 mode; 375 nA in Standby with RTC; 145 nA in VBAT mode |
| Analog Peripherals | 1× 12-bit ADC @ 5 Msps (16-bit oversampling), 2× 12-bit DACs, 1× op-amp with PGA, 2× comparators |
| Communication | USB 2.0 FS crystal-less, 4× I²C FM+, 3× USART, 1× LPUART, 3× SPI + Quad-SPI, CAN 2.0B, SAI |
| Security & RNG | AES-128/256 hardware accelerator, 96-bit unique ID, true random number generator |
| Package | LQFP100 (14 × 14 mm, 0.5 mm pitch), ECOPACK2® compliant |
Pinout & Package
LQFP100 package: 100-pin quad flat pack with exposed thermal pad, 0.5 mm pitch, RoHS-compliant, rated for -40 °C to +125 °C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Main, analog, and I/O power supply | 1.71–3.6 V operation; separate domains enable noise isolation for ADC/DAC |
| VSS, VSSA, VSSIO2 | Ground reference for digital, analog, and I/O | Independent ground planes reduce coupling between sensitive analog and noisy digital circuits |
| PA0–PA15, PB0–PB15, etc. (83 total) | General-purpose I/O with multiple alternate functions | Most pins 5 V-tolerant; support up to 16 alternate functions per pin (AF0–AF15) for flexible peripheral routing |
| PC13–PC15 | RTC oscillator inputs (LSE) | Support 32.768 kHz crystal for calendar RTC with hardware calibration and tamper detection |
| PA11/PA12 | USB D+/D− | Crystal-less USB 2.0 full-speed interface with built-in transceiver and LPM/BCD support |
| PF0–PF1 | Reset and boot configuration | NRST active-low reset; BOOT0/BOOT1 define boot source (system memory, Flash, or SRAM) |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Seven configurable low-power modes with sub-µA standby and 4 µs wakeup from Stop |
| ART Accelerator™ | Enables zero-wait-state 80 MHz execution from Flash, eliminating external RAM need for real-time code |
| Dual PLL clock system | Separate PLLs for CPU (up to 80 MHz) and audio/ADC (48 MHz), preventing jitter coupling |
| Capacitive touch sensing | 21-channel TSC supporting touchkey, linear, and rotary sensors without external components |
| Hardware security engine | AES-128/256 acceleration + TRNG + 96-bit unique ID for firmware authentication and encrypted storage |
Applications
| Wearable Health Monitor | Smart Utility Meter |
|---|---|
Use Scenario: Continuous ECG/PPG signal acquisition with local processing and BLE transmission during battery charging cycles. IC Role / Device Role / Timing Role: Main MCU executing sensor fusion algorithms, managing ultra-low-power ADC sampling bursts, and synchronizing USB/LPUART wake-up events. Use Value: 2.05 µA Stop 2 mode extends battery life >5 years on coin cell; hardware AES secures patient data before BLE transmission. | Use Scenario: Tamper-resistant electricity meter with real-time tariff calculation, magnetic interference detection, and remote firmware updates via NB-IoT. IC Role / Device Role / Timing Role: Secure host controller managing metrology ADC, RTC calendar, CAN-based tamper reporting, and encrypted OTA update verification. Use Value: 375 nA Standby with RTC maintains accurate billing calendar during grid outage; VBAT mode preserves 32×32-bit backup registers across main power loss. |
| Industrial Wireless Sensor Node | Portable Diagnostic Device |
Use Scenario: Battery-powered vibration/temperature node transmitting predictive maintenance data over LoRaWAN every 15 minutes. IC Role / Device Role / Timing Role: Low-power system orchestrator: wakes via LPTIM2 timer, samples analog sensors, processes FFT in Cortex-M4 FPU, then transmits via UART-to-LoRa bridge. Use Value: Batch Acquisition Mode (BAM) allows CPU to remain in Stop while peripherals collect and preprocess data, reducing active time by 68% vs. polling. | Use Scenario: Handheld ultrasound probe requiring real-time beamforming, analog front-end control, and secure DICOM export via USB. IC Role / Device Role / Timing Role: Real-time signal processor interfacing with 12-bit ADC (5 Msps), driving dual DACs for transmit waveform generation, and managing SAI audio output. Use Value: 5 Msps ADC with hardware oversampling achieves 16-bit effective resolution for high-fidelity echo digitization; op-amp PGA enables variable-gain analog conditioning without external components. |
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 | Same L4 series, 1 MB Flash, 128 KB SRAM, no Quad-SPI, adds LCD controller | Better suited for display-driven HMI; lacks Quad-SPI for external XIP flash expansion | Select when GUI capability is required and external serial flash is unnecessary |
| STM32L552VET6 | Next-gen L5 series, ARM TrustZone®, 512 KB Flash, 256 KB SRAM, 110 nA shutdown | Higher security certification readiness (PSA Level 3), but higher cost and larger footprint | Select when hardware root-of-trust and PSA-certified secure boot are mandatory |
Compared with STM32L476VGT6, the STM32L462VEI6TR offers superior serial memory expansion via Quad-SPI and lower active power (84 µA/MHz vs. 92 µA/MHz), while the STM32L552VET6 trades raw ultra-low-power efficiency for certified security features-making the L462 optimal for cost-sensitive, battery-constrained edge nodes needing expandable code space.
Availability
STM32L462VEI6TR 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 multi-year production cycles.
Supply support for STM32L462VEI6TR 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 ICs, sensors, and automotive semiconductors since 1987.
The STM32L4-series targets ultra-low-power embedded applications demanding extended battery life, rich analog integration, and secure firmware execution-optimized for IoT endpoints, portable medical equipment, and energy-harvesting systems.
FAQ
What is the maximum operating temperature range for STM32L462VEI6TR?
The STM32L462VEI6TR is qualified for industrial operation from –40 °C to +125 °C ambient temperature, validated per JEDEC JESD47 and ST's internal stress testing protocols. This rating applies to all LQFP100 variants and is confirmed in Section 6.3.1 of DS11913 Rev 5.
Does STM32L462VEI6TR support crystal-less USB operation?
Yes, it integrates a full-speed USB 2.0 PHY with crystal-less operation using its internal 48 MHz HSI48 oscillator, calibrated by the 32.768 kHz LSE. This eliminates the need for an external USB crystal, reducing BOM cost and PCB area-confirmed in Section 3.33 and Table 50 of the datasheet.
How many 12-bit ADC channels does STM32L462VEI6TR provide?
The device includes one 12-bit ADC with up to 16 input channels, capable of 5 Msps sampling rate and hardware oversampling to achieve up to 16-bit effective resolution. Channel count and timing are defined in Section 3.15 and Table 18 of DS11913 Rev 5.
Is the LQFP100 package RoHS and REACH compliant?
Yes, the STM32L462VEI6TR in LQFP100 packaging meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, and carries ST's ECOPACK2® environmental compliance mark-verified in Section 7.1 and the "Ordering Information" table of DS11913 Rev 5.
STM32L462VEI6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-UFBGA
- 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, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, PWM, WDT
- Number of I/O:
- 83
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 160K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.71V ~ 3.6V
- Data Converters:
- A/D 16x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L462VEI6TR FAQ
1.How can I place an order for STM32L462VEI6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L462VEI6TR 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 STM32L462VEI6TR reliable?
The price and inventory of STM32L462VEI6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L462VEI6TR is usually 5 days.
3.What payment methods are accepted for STM32L462VEI6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L462VEI6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L462VEI6TR?
STM32L462VEI6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L462VEI6TR 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 STM32L462VEI6TR?
For technical support, including STM32L462VEI6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L462VEI6TR requirements.
6.How does Aetrix verify that STM32L462VEI6TR is sourced from the original manufacturer or authorized distributors?
All STM32L462VEI6TR 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 STM32L462VEI6TR meets industry standards.
7.What is the process for return or replacement of STM32L462VEI6TR?
All STM32L462VEI6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L462VEI6TR, 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 STM32L462VEI6TR part is unused and in its original packaging.
Return procedure for STM32L462VEI6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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