My Inquiry
My Account
STMicroelectronics STM32L4A6RGT7
- Part No.:
- STM32L4A6RGT7
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
STM32L4A6RGT7.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,660
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32L4A6RGT7 from STMicroelectronics is an ultra-low-power Arm® Cortex®-M4 32-bit MCU with FPU, operating up to 80 MHz and delivering 100 DMIPS. It integrates 1 MB flash (dual-bank read-while-write), 320 KB SRAM (64 KB with hardware parity), USB OTG FS, AES+HASH crypto accelerators, and supports external SMPS for 37 µA/MHz run-mode efficiency. It targets battery-powered industrial sensors and portable medical devices requiring secure, real-time processing with extended runtime.
For engineers reviewing the STM32L4A6RGT7 datasheet, STM32L4A6RGT7 pinout, STM32L4A6RGT7 application, or STM32L4A6RGT7 equivalent, key selection criteria include its 320 nA VBAT mode, dual-bank flash for robust firmware updates, Chrom-ART Accelerator™ for GUI rendering, and dual CAN 2.0B interfaces for industrial fieldbus integration.
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) for secure task isolation. Its FlexPowerControl architecture supports seven low-power modes-including Stop 2 (2.57 µA) and Shutdown (25 nA)-with sub-5 µs wakeup latency and brown-out reset in all active modes except shutdown.
It features three independent 12-bit ADCs (5 Msps aggregate), two 12-bit DACs with sample-and-hold, two operational amplifiers with programmable gain, and two ultra-low-power comparators-all with dedicated voltage supplies for noise-sensitive analog signal chains. Clocking includes three PLLs (system, USB, audio) and internal oscillators auto-trimmed by LSE for ±0.25% accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 80 MHz max frequency, 100 DMIPS performance |
| Memory | 1 MB dual-bank flash (read-while-write), 320 KB SRAM (64 KB parity-protected) |
| Low-Power Run | 37 µA/MHz with external SMPS supply-enables >10-year battery life in sensor nodes |
| Analog Peripherals | 3× 12-bit ADCs (5 Msps total), 2× 12-bit DACs, 2× op-amps with PGA, 2× comparators |
| Crypto Acceleration | Dedicated AES-128/256 and SHA-256 (HASH) engines-offloads encryption from CPU |
| Communication | 2× CAN 2.0B, 5× USART, 2× SAI, 4× I²C, USB OTG FS, SDMMC, Quad SPI interface |
| Package | LQFP100 (14 × 14 mm), 100-pin, 0.5 mm pitch, RoHS-compliant |
Pinout & Package
LQFP100 package: 100-pin quad flat pack with exposed thermal pad, 0.5 mm pitch, JEDEC standard footprint, suitable for automated optical inspection and reflow soldering in high-volume production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power supply and ground | Supports 1.71–3.6 V operation; separate VDDA/VSSA pins enable clean analog domain supply |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/O | Up to 136 fast I/Os; most 5 V-tolerant; 14 pins support independent 1.08–3.6 V supply for mixed-voltage interfacing |
| PC13–PC15 | RTC oscillator inputs | Connect 32.768 kHz crystal for hardware calendar, alarms, and calibration-retained in VBAT mode |
| PA9/PA10 | USB OTG FS D+/D− | Full-speed USB 2.0 physical layer with built-in transceivers-no external PHY required |
| PB8/PB9 | I²C1_SCL/I²C1_SDA | Fast-mode Plus (1 Mbit/s) I²C interface with SMBus/PMBus support-enables battery gauge and sensor hub communication |
Key Features
| Feature | Design Value |
|---|---|
| FlexPowerControl architecture | Enables 25 nA shutdown mode with 5 dedicated wakeup pins-ideal for intermittent sensing applications |
| Chrom-ART Accelerator™ (DMA2D) | Hardware-accelerated 2D graphics rendering offloads CPU during GUI display updates on embedded LCDs |
| Batch Acquisition Mode (BAM) | Allows CPU to remain in low-power state while peripherals autonomously acquire and process sensor data |
| Dual-bank flash memory | Enables seamless firmware updates via bank-swapping-no system interruption or external flash required |
| External SMPS support | Reduces active current to 37 µA/MHz-critical for extending battery life in portable diagnostics equipment |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Wireless temperature/humidity/pressure node deployed in factory floor with 10-year battery life requirement. IC Role / Device Role / Timing Role: Main controller executing sensor fusion, BLE stack, and secure OTA updates; RTC provides timestamping and scheduled wakeups. Use Value: 25 nA shutdown + 37 µA/MHz SMPS run mode enables decade-long operation on coin-cell; dual-bank flash ensures fail-safe firmware upgrades. | Use Scenario: Handheld ECG and SpO₂ monitor requiring clinical-grade analog acquisition and local data encryption. IC Role / Device Role / Timing Role: Analog front-end controller with 3× synchronized ADCs, hardware AES for HIPAA-compliant data storage, and USB OTG for clinician data export. Use Value: Dedicated op-amps with PGA and 12-bit DACs enable calibrated analog signal conditioning; AES+HASH accelerators reduce encryption latency by >90% vs. software-only. |
| Smart Building HVAC Controller | Automated Test Equipment (ATE) Module |
Use Scenario: DIN-rail mounted HVAC controller managing zone valves, fan speed, and CO₂ feedback via Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Fieldbus master with dual CAN 2.0B and 5× UARTs; LPUART handles low-power wireless backhaul; RTC maintains schedule-based actuation. Use Value: Dual CAN interfaces allow redundant fieldbus connectivity; 136 I/Os support direct GPIO control of relays and triacs without external expanders. | Use Scenario: Modular ATE subsystem performing precision voltage/current sourcing and measurement under PC host control. IC Role / Device Role / Timing Role: Precision analog controller with 12-bit DACs (sample-and-hold), 12-bit ADCs (5 Msps), and deterministic timer-triggered sampling via advanced-control timers. Use Value: Hardware oversampling (up to 16-bit effective resolution) and DMA-driven acquisition eliminate CPU bottlenecks during high-speed test sequences. |
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 |
|---|---|---|---|
| STM32L476RG | Same Cortex-M4 core, 1 MB flash, but lacks USB OTG FS and audio interfaces (no SAI); 256 KB SRAM | No native audio streaming or full-speed USB device capability-unsuitable for voice-enabled edge nodes | Select when USB/audio are unnecessary and cost optimization is critical |
| STM32L552RE | ARMv8-M TrustZone® security extension, 512 KB flash, 256 KB SRAM, same 80 MHz clock; adds secure boot and cryptographic services | Requires secure boot, encrypted firmware storage, and runtime attestation-adds complexity for non-security-critical designs | Select only when hardware-enforced security isolation and PSA Certified Level 1 compliance are mandatory |
Compared with STM32L476RG, the STM32L4A6RGT7 adds USB OTG FS and dual SAI for audio, enabling voice interfaces and peripheral hosting; versus STM32L552RE, it trades TrustZone® for higher flash/SRAM and lower BOM cost-making it optimal for cost-sensitive, feature-rich ultra-low-power applications without formal security certification requirements.
Availability
STM32L4A6RGT7 is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart building HVAC controllers, and automated test equipment modules requiring stable component supply across multi-year production cycles.
Supply support for STM32L4A6RGT7 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, specializing in microcontrollers, power management, sensors, and automotive ICs with strong R&D investment in ultra-low-power and secure embedded technologies.
The STM32L4 series is designed for energy-constrained applications demanding high performance per microwatt, featuring patented FlexPowerControl and ART Accelerator™ to enable complex firmware on coin-cell batteries.
FAQ
What is the maximum operating temperature range for STM32L4A6RGT7?
The STM32L4A6RGT7 is qualified for industrial operation from –40 °C to +85 °C ambient temperature. Its datasheet specifies full functionality-including flash programming, RTC operation, and analog peripheral accuracy-within this range, with no derating required up to 85 °C.
Does STM32L4A6RGT7 support external memory expansion?
Yes-it integrates a Flexible Static Memory Controller (FSMC) supporting SRAM, PSRAM, NOR, and NAND memories, plus a dual-flash Quad SPI interface for high-speed external serial flash. Both interfaces operate independently and can be used simultaneously for code XIP and data storage.
How does the Chrom-ART Accelerator™ improve GUI performance?
The Chrom-ART Accelerator™ (DMA2D) performs 2D graphics operations-including pixel format conversion, alpha blending, and memory fill-in hardware. This reduces CPU load by up to 70% during LCD refresh, enabling smooth animations on 320×240 displays even with ARM Cortex-M4 running at 24 MHz.
Can STM32L4A6RGT7 operate without an external crystal?
Yes-it includes multiple internal oscillators: a 16 MHz RC (±1%), a 32 kHz low-power RC (±5%), and a multispeed 100 kHz–48 MHz oscillator auto-trimmed by the 32 kHz LSE for better than ±0.25% accuracy. External crystals are optional and used only for highest-precision timing (e.g., USB or RTC).
STM32L4A6RGT7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 64-LQFP
- Series:
- STM32L4
- Packaging:
- Tray
- 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:
- 52
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L4A6RGT7 FAQ
1.How can I place an order for STM32L4A6RGT7 through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L4A6RGT7 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 STM32L4A6RGT7 reliable?
The price and inventory of STM32L4A6RGT7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L4A6RGT7 is usually 5 days.
3.What payment methods are accepted for STM32L4A6RGT7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L4A6RGT7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L4A6RGT7?
STM32L4A6RGT7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L4A6RGT7 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 STM32L4A6RGT7?
For technical support, including STM32L4A6RGT7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L4A6RGT7 requirements.
6.How does Aetrix verify that STM32L4A6RGT7 is sourced from the original manufacturer or authorized distributors?
All STM32L4A6RGT7 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 STM32L4A6RGT7 meets industry standards.
7.What is the process for return or replacement of STM32L4A6RGT7?
All STM32L4A6RGT7 units undergo pre-shipment inspection (PSI). If there is an issue with STM32L4A6RGT7, 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 STM32L4A6RGT7 part is unused and in its original packaging.
Return procedure for STM32L4A6RGT7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32L4A6RGT7 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…
