My Inquiry
My Account
STMicroelectronics STM32L462REY6TR
- Part No.:
- STM32L462REY6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-UFBGA, WLCSP
- Datasheet:
-
STM32L462REY6TR.pdf
- Description:
- IC MCU 32BIT 512KB FLASH 64WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,386
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32L462REY6TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 80 MHz, featuring 512 KB Flash, 160 KB SRAM, and integrated analog peripherals including 12-bit ADC (5 Msps), dual 12-bit DAC, op-amp with PGA, and hardware AES encryption. It supports USB 2.0 full-speed (crystal-less), CAN 2.0B, SAI, and LPUART-used in battery-powered industrial sensors requiring secure, low-power edge processing.
For engineers reviewing the STM32L462REY6TR datasheet, STM32L462REY6TR pinout, STM32L462REY6TR application, or STM32L462REY6TR equivalent, key selection criteria include VBAT mode current (145 nA), Stop 2 mode consumption (375 nA with RTC), 80 MHz real-time performance under FlexPowerControl, and UFBGA100 package compatibility with high-density PCB layouts.
Technical Context
The device implements an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from Flash at 80 MHz, paired with a memory protection unit (MPU) and interconnect matrix for deterministic peripheral arbitration. Its power architecture includes three voltage regulator modes (ULP, LP, Main) and five low-power states-Shutdown (22 nA), Standby (106 nA), Stop 2 (375 nA with RTC), and Run (84 µA/MHz)-all managed via dedicated PWR control registers.
Clock system integration includes dual PLLs (system + audio/ADC), auto-trimmed MSI (100 kHz–48 MHz, ±0.25%), HSI48 for USB, and LSE-driven calibration for RTC accuracy. Analog subsystems operate on independent supplies: ADC achieves 200 µA/Msps efficiency, DAC supports low-power sample-and-hold, and two ultra-low-power comparators enable wake-up from Stop modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| 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 | 375 nA Standby with RTC; 2.05 µA Stop 2 mode; 84 µA/MHz Run mode |
| Analog Peripherals | 1× 12-bit ADC @ 5 Msps (hardware oversampling to 16-bit); 2× 12-bit DAC; 1× op-amp with PGA; 2× comparators |
| Connectivity | USB 2.0 FS (crystal-less), CAN 2.0B, 4× I²C FM+, 3× USART, 1× LPUART, 1× SAI, 3× SPI + QuadSPI |
| Security & Crypto | AES-128/256 hardware accelerator, true RNG, 96-bit unique ID, firewall protection |
| Package | UFBGA100 (7 × 7 mm, 0.5 mm pitch), ECOPACK2® compliant |
Pinout & Package
STM32L462REY6TR is housed in a 100-pin Ultra-Fine Pitch Ball Grid Array (UFBGA100) package measuring 7 mm × 7 mm with 0.5 mm ball pitch, optimized for compact, high-I/O-count designs requiring thermal efficiency and board space savings.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | 1.71–3.6 V operation; multiple VDD/VSS pairs ensure stable core/peripheral rail decoupling |
| VBAT | Backup power supply | Supplies RTC and 32×32-bit backup registers during main power loss; accepts 1.65–3.6 V |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 83 fast I/Os; most are 5 V-tolerant, supporting mixed-voltage interface design |
| NRST | Active-low reset input | Asynchronous reset with internal pull-up; supports external reset button or supervisor IC assertion |
| BOOT0 | Boot mode selection | High at power-up selects system memory boot (for DFU); tied low for Flash boot |
| OSC_IN / OSC_OUT | HSE crystal oscillator interface | Supports 4–48 MHz external crystal; optional for precise clocking when USB/CAN require tight tolerance |
| PC13–PC15 | RTC-related pins | PC13 = RTC_OUT; PC14/PC15 = LSE crystal connections (32.768 kHz) |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables dynamic voltage scaling and multi-level low-power modes-critical for extending battery life in portable medical devices |
| ART Accelerator™ | Eliminates Flash wait states at 80 MHz, delivering deterministic real-time response without SRAM code shadowing |
| Batch Acquisition Mode (BAM) | Allows CPU to sleep while peripherals autonomously acquire sensor data-reducing active time in data-logging applications |
| Dual 12-bit DAC with sample-and-hold | Enables simultaneous analog waveform generation and hold for precision actuator control without CPU intervention |
| Hardware AES engine | Accelerates encryption/decryption of sensor payloads before wireless transmission-meeting IoT security compliance requirements |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Wireless temperature/humidity node powered by coin-cell battery, transmitting encrypted readings every 5 minutes via BLE gateway. IC Role / Device Role / Timing Role: Primary controller executing sensor fusion, AES-128 encryption, RTC-triggered wakeup, and LPUART-to-BLE bridge timing. Use Value: 375 nA Standby with RTC enables >10-year battery life; LPUART wake capability ensures precise transmission scheduling without continuous polling. | Use Scenario: Wearable ECG patch recording analog waveforms, detecting arrhythmias locally, and alerting via Bluetooth. IC Role / Device Role / Timing Role: Signal acquisition hub using ADC oversampling, real-time DSP on Cortex-M4, and DAC-driven reference generation for analog front-end calibration. Use Value: 5 Msps ADC with hardware oversampling delivers clinical-grade resolution; op-amp with PGA enables programmable gain for varying electrode impedances. |
| Smart Utility Meter | Asset Tracking Module |
Use Scenario: Battery-operated water/gas meter reading pulse outputs and transmitting daily usage via NB-IoT. IC Role / Device Role / Timing Role: Low-power host managing pulse counting, RTC calendar, secure firmware updates over cellular, and tamper detection logic. Use Value: VBAT mode (145 nA) preserves RTC and backup registers during main power disconnect; AES hardware secures OTA update integrity. | Use Scenario: GPS tracker in logistics pallets, logging location and shock events, waking only on motion or geofence breach. IC Role / Device Role / Timing Role: Motion-triggered system controller using LPTIM2 and EXTI from accelerometer, managing GPS power sequencing and SDMMC data buffering. Use Value: 4 µs wakeup from Stop mode enables immediate response to impact events; QuadSPI interface supports fast firmware update storage. |
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 |
|---|---|---|---|
| STM32L476RGV6 | Higher Flash (1 MB) and SRAM (128 KB), adds TFT-LCD controller and Chrom-ART accelerator; no SAI or USB crystal-less support | Better suited for HMI-enabled gateways; lacks integrated audio interface required for voice-alert systems | Select when display driving or larger firmware footprint is needed; avoid if SAI or crystal-less USB is mandatory |
| STM32L552RET6 | ARMv8-M TrustZone®, 160 MHz Cortex-M33, 512 KB Flash, 256 KB SRAM, enhanced crypto (PKA, AES-GCM), 120 nA Stop mode | Designed for certified secure boot and confidential computing; higher cost and power in active mode vs. L462 | Choose for applications requiring PSA Level 1 certification or hardware root-of-trust; not drop-in compatible due to peripheral register changes |
Compared with STM32L476RGV6, the STM32L462REY6TR offers superior audio and USB flexibility at lower active power; versus STM32L552RET6, it provides proven low-cost ultra-low-power operation without TrustZone overhead-ideal for cost-sensitive, battery-constrained edge nodes where basic AES and RTC integrity suffice.
Availability
STM32L462REY6TR is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart utility meters, and asset tracking modules requiring stable component supply across multi-year production cycles.
Supply support for STM32L462REY6TR 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, specializing in microcontrollers, power management, analog, MEMS, and automotive ICs.
The STM32L4 series targets ultra-low-power embedded applications demanding rich analog integration, cryptographic acceleration, and extended battery life-designed specifically for intelligent sensors, wearables, and energy-harvesting systems.
FAQ
What is the maximum operating frequency and how is it achieved?
The STM32L462REY6TR achieves 80 MHz maximum CPU frequency using its Adaptive Real-time Accelerator (ART Accelerator™), which eliminates Flash wait states through instruction prefetch and branch cache. This allows deterministic zero-wait-state execution directly from 512 KB Flash memory, validated across -40 °C to +125 °C temperature range with 1.71–3.6 V supply.
Does this MCU support crystal-less USB operation?
Yes-STM32L462REY6TR integrates a factory-trimmed 48 MHz HSI48 oscillator with clock recovery system (CRS), enabling full-speed USB 2.0 communication without an external crystal. This reduces BOM cost and PCB area while maintaining ±0.25% accuracy over voltage and temperature, meeting USB specification timing requirements.
How many low-power modes does the STM32L462REY6TR support and what are their key trade-offs?
It supports six low-power modes: Shutdown (22 nA), Standby (106 nA), Standby with RTC (375 nA), Stop 0/1/2 (1.15–2.40 µA), and Run (84 µA/MHz). Key trade-offs include wakeup latency (4 µs from Stop 2 vs. 15 µs from Standby) and peripheral availability-e.g., ADC and timers remain functional in Stop 2, but Flash is disabled in Shutdown mode.
Is the UFBGA100 package RoHS and REACH compliant?
Yes-the UFBGA100 package used in STM32L462REY6TR is ECOPACK2® certified, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 requirements. Lead-free soldering profiles and halogen-free molding compound are fully documented in ST's official packaging reports (Doc ID 17122).
STM32L462REY6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-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, UART/USART, USB
- Peripherals:
- Brown-out Detect/Reset, DMA, PWM, WDT
- Number of I/O:
- 52
- 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:
STM32L462REY6TR FAQ
1.How can I place an order for STM32L462REY6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L462REY6TR 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 STM32L462REY6TR reliable?
The price and inventory of STM32L462REY6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L462REY6TR is usually 5 days.
3.What payment methods are accepted for STM32L462REY6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L462REY6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L462REY6TR?
STM32L462REY6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L462REY6TR 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 STM32L462REY6TR?
For technical support, including STM32L462REY6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L462REY6TR requirements.
6.How does Aetrix verify that STM32L462REY6TR is sourced from the original manufacturer or authorized distributors?
All STM32L462REY6TR 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 STM32L462REY6TR meets industry standards.
7.What is the process for return or replacement of STM32L462REY6TR?
All STM32L462REY6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L462REY6TR, 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 STM32L462REY6TR part is unused and in its original packaging.
Return procedure for STM32L462REY6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L462REY6TR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
