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STMicroelectronics STM32L4A6VGY6TR
- Part No.:
- STM32L4A6VGY6TR
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 100-UFBGA, WLCSP
- Datasheet:
-
STM32L4A6VGY6TR.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 100WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,148
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Product details
Overview
STM32L4A6VGY6TR from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, 1 MB flash, 320 KB SRAM, USB OTG FS, hardware AES+HASH encryption, and integrated SMPS support. It operates from 1.71–3.6 V across –40 °C to 125 °C, delivers 100 DMIPS at 80 MHz, and targets battery-powered industrial sensors, portable medical devices, and secure IoT edge nodes requiring long runtime and cryptographic integrity.
For engineers reviewing the STM32L4A6VGY6TR datasheet, STM32L4A6VGY6TR pinout, STM32L4A6VGY6TR application, or STM32L4A6VGY6TR equivalent, key selection criteria include its 37 µA/MHz SMPS-enabled run mode, dual-bank read-while-write flash, 24-channel capacitive touch sensing, and dual CAN 2.0B interfaces for robust fieldbus connectivity in constrained environments.
Technical Context
The device integrates an Adaptive Real-time Accelerator (ART Accelerator™) enabling zero-wait-state execution from flash at 80 MHz, and features a multi-AHB interconnect matrix supporting concurrent access to flash, SRAM, and peripherals. Its power architecture includes three independent voltage regulators (LDO/SMPS/bypass), enabling dynamic switching between 91 µA/MHz (LDO) and 37 µA/MHz (SMPS) operation.
It embeds dual 12-bit ADCs (5 Msps, 16-bit oversampling), two 12-bit DACs with sample-and-hold, two operational amplifiers with programmable gain, and two ultra-low-power comparators-all with independent analog supply domains. The peripheral set includes two SAIs for audio streaming, USB OTG FS with LPM/BCD, and two CAN 2.0B controllers for automotive-grade communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | Arm Cortex-M4 with FPU, 80 MHz max frequency, 100 DMIPS, DSP instructions, MPU |
| Memory | 1 MB dual-bank flash (read-while-write, ROP), 320 KB SRAM (64 KB with parity) |
| Power Consumption | 37 µA/MHz in SMPS run mode; 426 nA standby with RTC; 25 nA shutdown mode |
| Analog Peripherals | 3× 12-bit ADCs (5 Msps), 2× 12-bit DACs, 2× op-amps with PGA, 2× comparators |
| Connectivity | USB OTG FS, 2× CAN 2.0B, 5× USART/LPUART, 4× I²C FM+, 3× SPI + Quad-SPI, 2× SAI |
| Security & Crypto | AES-128/256 hardware accelerator, SHA-256 hash engine, true RNG, 96-bit unique ID |
| Package | UFBGA132 (7 × 7 mm, 0.4 mm pitch), RoHS-compliant, industrial temperature grade (–40 to 125 °C) |
Pinout & Package
STM32L4A6VGY6TR uses a 132-ball Ultra-Fine-Pitch Ball Grid Array (UFBGA132) package with 0.4 mm ball pitch and 7 mm × 7 mm body size. Pin assignment follows ST's standardized STM32L4A6xG pinout layout for UFBGA132, supporting full peripheral remapping via alternate functions AF0–AF15.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDIO2 | Main, analog, and I/O supply rails | Independent 1.71–3.6 V domains enable mixed-signal isolation and flexible power sequencing |
| VSS, VSSA, VSSIO2 | Ground references | Dedicated analog/digital/I/O ground planes minimize noise coupling in precision sensing |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 136 fast I/Os; most 5 V-tolerant; up to 14 support independent 1.08–3.6 V supply |
| PC13–PC15 | RTC oscillator inputs | Support 32.768 kHz crystal for hardware calendar, alarms, and calibration-critical timing |
| PA11/PA12 | USB OTG FS D+/D− | Full-speed USB 2.0 physical layer with built-in transceivers and LPM support |
| PB8/PB9 | CAN1 TX/RX | Dedicated differential CAN bus interface compliant with ISO 11898-1 (2.0B Active) |
| PD0/PD1 | CAN2 TX/RX | Second independent CAN controller for redundant or multi-bus network topologies |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables 25 nA shutdown and 426 nA standby with RTC-critical for >10-year battery life in metering |
| ART Accelerator™ | Eliminates flash wait states at 80 MHz, reducing code-execution latency and dynamic power in real-time control loops |
| Dual-bank flash with ROP | Supports seamless firmware updates and secure boot validation without system interruption |
| Chrom-ART Accelerator (DMA2D) | Hardware-accelerated 2D graphics rendering offloads CPU for GUI-driven HMI applications |
| DFSDM + TSC | 24-channel capacitive touch sensing with sigma-delta filtering enables robust proximity/touch UI on metal enclosures |
| External SMPS interface | Direct control of external DC-DC converter (e.g., STMPxx) improves system efficiency by 35% vs. LDO-only designs |
Applications
| Smart Utility Meter | Portable ECG Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with remote reporting and tamper detection. IC Role / Device Role / Timing Role: Main application processor handling metrology sampling (ADC), secure data logging (AES+flash), and LPWAN comms (LPUART/SPI). Use Value: 37 µA/MHz SMPS run mode extends 10-year battery life; dual CAN supports legacy AMI infrastructure; hardware SHA-256 ensures firmware authenticity. |
Use Scenario: Handheld clinical ECG device with analog front-end, display, and Bluetooth LE gateway. IC Role / Device Role / Timing Role: Signal acquisition controller managing 3× ADCs (lead I/II/III), real-time filtering (DSP), and LCD refresh (DMA2D + LCD controller). Use Value: 5 Msps ADC oversampling achieves >16-bit ENOB; low-noise op-amps condition microvolt-level biopotentials; 125 °C rating supports sterilization cycles. |
| Industrial PLC Edge Node | Secure IoT Gateway |
Use Scenario: DIN-rail-mounted sensor aggregator with fieldbus (CAN), digital I/O, and cloud uplink. IC Role / Device Role / Timing Role: Deterministic real-time controller running FreeRTOS, managing CAN messaging, PWM motor control (TIM1/TIM8), and watchdog supervision. Use Value: 2× CAN 2.0B ports enable master/slave topology; 16-bit advanced timers deliver <100 ns PWM resolution; -40 to 125 °C rating ensures factory-floor reliability. |
Use Scenario: Cellular/Wi-Fi edge gateway authenticating and encrypting sensor data before cloud upload. IC Role / Device Role / Timing Role: Secure co-processor handling TLS handshake acceleration (AES+SHA), secure key storage (ROP), and trusted boot verification. Use Value: Hardware crypto reduces TLS handshake time by 70% vs. software-only; 96-bit UID enables device identity binding; true RNG seeds secure session keys. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power Arm Cortex-M4 MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STM32L4R9VIT6 | 2 MB flash, 640 KB SRAM, no SMPS interface, higher 1.3 V core voltage | Better for high-code-footprint GUI apps; lacks external SMPS control for ultra-low-power battery systems | Select when memory headroom > power efficiency; avoid for sub-µA standby requirements |
| STM32L562VEY6Q | ARM TrustZone®, 512 KB flash, 256 KB SRAM, 1.27 V min VDD, no CAN | Superior security isolation for certified IoT endpoints; missing CAN limits industrial fieldbus use | Choose for PSA Level 2–certified deployments; not suitable where dual CAN or 1 MB flash is mandatory |
Compared with STM32L4R9VIT6, STM32L4A6VGY6TR trades flash capacity for lower active current and SMPS integration-making it optimal for energy-constrained edge nodes. Versus STM32L562VEY6Q, it sacrifices TrustZone for CAN and larger memory, prioritizing deterministic real-time control over hardware-enforced security domains.
Availability
STM32L4A6VGY6TR is available at Aetrix Electronics and suitable for smart utility meters, portable medical diagnostics, and industrial PLC edge nodes requiring stable component supply, long-term lifecycle assurance, and guaranteed traceability.
Supply support for STM32L4A6VGY6TR 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 analog components for industrial, automotive, and consumer markets.
The STM32L4 series targets ultra-low-power embedded applications demanding high performance per microwatt, with the L4A6 variant specifically optimized for secure, sensor-rich, and connectivity-intensive edge devices operating across extended temperature ranges.
FAQ
What is the maximum operating temperature range for STM32L4A6VGY6TR?
The STM32L4A6VGY6TR is qualified for industrial operation from –40 °C to +125 °C ambient temperature, verified per ST's qualification standard AEC-Q100 Grade 2 (for automotive-adjacent use) and JEDEC JESD47. This rating applies to all electrical specifications including flash endurance, ADC accuracy, and clock stability under thermal stress.
Does STM32L4A6VGY6TR support external QSPI flash memory?
Yes-it integrates a dedicated Dual-flash Quad SPI memory interface (QUADSPI) supporting XIP (execute-in-place), memory-mapped mode, and indirect mode. It drives standard octal/xcc QSPI NOR flash devices (e.g., Micron MT25QL, Winbond W25Q) at up to 133 MHz with double-data-rate timing, enabling seamless expansion beyond internal 1 MB flash.
How many independent ADC instances does STM32L4A6VGY6TR provide?
The device integrates three independent 12-bit ADCs (ADC1, ADC2, ADC3), each capable of 5 Msps sampling with hardware oversampling up to 16-bit effective resolution. They share no common clock or trigger resources, allowing simultaneous synchronized acquisition across multiple analog channels-essential for three-phase motor control or multi-lead ECG.
Is the USB OTG FS interface on STM32L4A6VGY6TR compatible with USB Battery Charging (BC) v1.2?
Yes-the USB OTG FS peripheral implements full Battery Charging v1.2 compliance, including DCP (Dedicated Charging Port), CDP (Charging Downstream Port), and SDP (Standard Downstream Port) detection. It uses internal BC logic and comparator-based port identification without external components, enabling plug-and-play charging in portable medical or handheld industrial tools.
STM32L4A6VGY6TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 100-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, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG
- Peripherals:
- Brown-out Detect/Reset, DMA, LCD, PWM, WDT, (External SMPS Required)
- Number of I/O:
- 83
- Program Memory Size:
- 1MB (1M x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 320K 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:
STM32L4A6VGY6TR FAQ
1.How can I place an order for STM32L4A6VGY6TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L4A6VGY6TR 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 STM32L4A6VGY6TR reliable?
The price and inventory of STM32L4A6VGY6TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L4A6VGY6TR is usually 5 days.
3.What payment methods are accepted for STM32L4A6VGY6TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L4A6VGY6TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L4A6VGY6TR?
STM32L4A6VGY6TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L4A6VGY6TR 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 STM32L4A6VGY6TR?
For technical support, including STM32L4A6VGY6TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L4A6VGY6TR requirements.
6.How does Aetrix verify that STM32L4A6VGY6TR is sourced from the original manufacturer or authorized distributors?
All STM32L4A6VGY6TR 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 STM32L4A6VGY6TR meets industry standards.
7.What is the process for return or replacement of STM32L4A6VGY6TR?
All STM32L4A6VGY6TR units undergo pre-shipment inspection (PSI). If there is an issue with STM32L4A6VGY6TR, 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 STM32L4A6VGY6TR part is unused and in its original packaging.
Return procedure for STM32L4A6VGY6TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L4A6VGY6TR Tags
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ATTINY4-TSHR
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