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STMicroelectronics STM32L4A6ZGT6P
- Part No.:
- STM32L4A6ZGT6P
- Manufacturer:
- STMicroelectronics
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
STM32L4A6ZGT6P.pdf
- Description:
- IC MCU 32BIT 1MB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,411
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Product details
Overview
STM32L4A6ZGT6P 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 STM32L4A6ZGT6P datasheet, STM32L4A6ZGT6P pinout, STM32L4A6ZGT6P application, or STM32L4A6ZGT6P 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
This MCU 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 for concurrent peripheral access. Its power architecture includes three independent voltage regulators (LDO/SMPS/bypass), supporting dynamic voltage scaling and batch acquisition mode (BAM) for sensor data bursts.
The device implements two 12-bit DACs with sample-and-hold, three 12-bit ADCs (5 Msps, hardware oversampling up to 16-bit), and dedicated Chrom-ART Accelerator (DMA2D) for GUI rendering. Clocking includes three PLLs - system, USB, and audio - plus internal 48 MHz recovery and auto-trimmed multispeed oscillator (±0.25% accuracy).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M4 with FPU, 80 MHz max frequency, 100 DMIPS, DSP instructions, MPU |
| Memory | 1 MB dual-bank flash (read-while-write), 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× ultra-low-power comparators |
| Connectivity | USB OTG FS, 2× CAN 2.0B, 5× USART/LPUART, 4× I²C FM+, 3× SPI + Quad-SPI, 2× SAI, SDMMC |
| Security & Crypto | Hardware AES-128/256, SHA-256 HASH, TRNG, 96-bit unique ID, firewall, ROP protection |
| Package | LQFP144 (20 × 20 mm), 144-pin, 0.5 mm pitch, RoHS-compliant, industrial temperature grade (–40 °C to 125 °C) |
Pinout & Package
LQFP144 package with exposed thermal pad; 144 pins arranged in quad configuration; compatible with standard PCB reflow profiles and industrial-grade thermal cycling.
| 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 external SMPS routing |
| VSS, VSSA, VSSIO2 | Ground returns | Dedicated analog/digital ground pins minimize noise coupling in precision ADC/DAC operation |
| PA0–PA15, PB0–PB15, etc. | General-purpose I/Os | Up to 136 fast I/Os; most 5 V-tolerant; 14 support independent 1.08–3.6 V supply for low-voltage peripherals |
| PC13–PC15 | RTC-related functions | Support LSE crystal (32.768 kHz), RTC clock input, and tamper detection with backup domain retention |
| PA11/PA12 | USB OTG FS D+/D– | Full-speed USB transceiver with internal pull-ups; supports BCD, LPM, and suspend/resume signaling |
| PB8/PB9 | CAN1_RX/CAN1_TX | Dual CAN 2.0B controllers with dedicated TX/RX pins; support time-triggered communication and loopback self-test |
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 and remote sensors |
| ART Accelerator™ | Eliminates flash wait states at 80 MHz, reducing active power by ~15% vs. non-accelerated Cortex-M4 cores |
| Dual-bank flash with RWW | Allows firmware updates via background bank swap without halting real-time control tasks |
| Chrom-ART Accelerator (DMA2D) | Offloads 2D graphics composition (ARGB8888 → RGB565) from CPU, cutting GUI rendering latency by >70% |
| External SMPS interface | Direct control of external DC-DC converter (VDD12) enables 37 µA/MHz efficiency-4× better than LDO-only operation |
Applications
| Smart Utility Meter | Portable ECG Monitor |
|---|---|
Use Scenario: Battery-powered electricity/water/gas meter with metrology, display, and NB-IoT backhaul. IC Role / Device Role / Timing Role: Main controller executing metrology algorithms, managing LCD driver, handling secure OTA updates, and synchronizing sampling clocks via RTC-calibrated timers. Use Value: 320 KB SRAM accommodates dual-buffered waveform capture; AES+HASH secures firmware and usage logs; 24-channel TSC enables tamper-proof keypad and cover detection. | Use Scenario: Handheld clinical-grade ECG device with analog front-end, OLED display, Bluetooth LE, and rechargeable Li-ion battery. IC Role / Device Role / Timing Role: Signal processor for real-time QRS detection, DAC-driven lead-off calibration, DMA-managed ADC streaming, and low-power sleep scheduling between patient measurements. Use Value: Dual 12-bit DACs calibrate electrode offsets; 3× ADCs simultaneously acquire limb leads; 25 nA shutdown extends idle battery life to >6 months. |
| Industrial PLC Edge Node | Secure Asset Tracker |
Use Scenario: DIN-rail mounted gateway aggregating Modbus RTU sensors, running local logic, and forwarding data via LTE. IC Role / Device Role / Timing Role: Deterministic real-time controller with CAN bus master, UART-to-Modbus bridge, and watchdog-monitored task scheduler. Use Value: Two CAN 2.0B controllers interface with legacy field devices; 16 timers include advanced motor-control units for PWM generation; firewall isolates firmware partitions during field updates. | Use Scenario: GPS-enabled logistics tracker operating in extreme temperatures (-40 °C to 125 °C) with motion-triggered wake-up and encrypted location reporting. IC Role / Device Role / Timing Role: Low-power host managing GPS module, accelerometer interrupt, cellular modem control, and secure key storage. Use Value: 125 °C rating ensures reliability in vehicle under-hood deployments; TRNG + AES enables TLS 1.2 handshake; 5 wakeup pins support motion, GPS fix, and modem alert events. |
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 |
|---|---|---|---|
| STM32L4R9ZIJ6 | 2 MB flash, 640 KB SRAM, no SMPS interface, higher temp grade (–40 °C to 125 °C), same LQFP144 package | Better suited for complex GUI or RTOS workloads; lacks external SMPS control for ultra-low-power optimization | Select when memory headroom outweighs sub-µA standby requirements |
| STM32L562ZEJ6 | ARM TrustZone®, 512 KB flash, 256 KB SRAM, VDD=1.71–3.6 V, 110 µA/MHz (SMPS), -40 °C to 105 °C | Hardware security focus: secure boot, crypto services, and memory isolation; lower power efficiency than L4A6 in deep sleep | Select when PSA Certified Level 3 security compliance is mandatory over raw energy efficiency |
Compared with STM32L4R9ZIJ6 and STM32L562ZEJ6, the STM32L4A6ZGT6P uniquely balances high memory density (1 MB flash), ultra-low-power SMPS operation (37 µA/MHz), and dual CAN-making it optimal for cost-sensitive, battery-constrained industrial gateways where cryptographic acceleration and deterministic timing coexist.
Availability
STM32L4A6ZGT6P is available at Aetrix Electronics and suitable for smart utility meters, portable medical diagnostics, and industrial PLC edge nodes requiring stable component supply, extended temperature operation, and long-term lifecycle assurance.
Supply support for STM32L4A6ZGT6P 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 industrial and IoT focus.
The STM32L4 series is designed for ultra-low-power embedded applications demanding rich analog integration, cryptographic security, and seamless connectivity-targeting battery-operated sensors, wearables, and intelligent edge nodes.
FAQ
What is the maximum operating frequency and core type of STM32L4A6ZGT6P?
The STM32L4A6ZGT6P features an Arm Cortex-M4 core with FPU, rated for up to 80 MHz operation. It achieves 100 DMIPS and supports DSP instructions. The ART Accelerator™ enables zero-wait-state execution from flash memory, ensuring deterministic real-time performance without external cache.
Does STM32L4A6ZGT6P support external SMPS control, and how does it impact power efficiency?
Yes, STM32L4A6ZGT6P includes dedicated VDD12 and VDD12_IO pins to interface with external SMPS converters. In SMPS mode, it achieves 37 µA/MHz run current-nearly 2.5× more efficient than LDO mode (91 µA/MHz)-enabling multi-year battery life in always-on sensing applications.
How many communication interfaces does STM32L4A6ZGT6P integrate, and which are CAN-capable?
The device integrates 20 communication interfaces, including 2x CAN 2.0B controllers (CAN1 and CAN2), 5x USART/LPUART, 4x I²C, 3x SPI + Quad-SPI, 2x SAI, USB OTG FS, SDMMC, and SWPMI. Both CAN peripherals support bit rates up to 1 Mbps and feature dedicated TX/RX pins and programmable filters.
What packaging and temperature range is specified for STM32L4A6ZGT6P?
STM32L4A6ZGT6P is supplied in LQFP144 (20 × 20 mm, 0.5 mm pitch) package and qualified for industrial temperature range of –40 °C to +125 °C. This makes it suitable for under-hood automotive, smart grid, and harsh-environment industrial deployments where thermal resilience is critical.
STM32L4A6ZGT6P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 144-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:
- 115
- 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 24x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
STM32L4A6ZGT6P FAQ
1.How can I place an order for STM32L4A6ZGT6P through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32L4A6ZGT6P 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 STM32L4A6ZGT6P reliable?
The price and inventory of STM32L4A6ZGT6P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32L4A6ZGT6P is usually 5 days.
3.What payment methods are accepted for STM32L4A6ZGT6P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32L4A6ZGT6P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32L4A6ZGT6P?
STM32L4A6ZGT6P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32L4A6ZGT6P 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 STM32L4A6ZGT6P?
For technical support, including STM32L4A6ZGT6P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32L4A6ZGT6P requirements.
6.How does Aetrix verify that STM32L4A6ZGT6P is sourced from the original manufacturer or authorized distributors?
All STM32L4A6ZGT6P 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 STM32L4A6ZGT6P meets industry standards.
7.What is the process for return or replacement of STM32L4A6ZGT6P?
All STM32L4A6ZGT6P units undergo pre-shipment inspection (PSI). If there is an issue with STM32L4A6ZGT6P, 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 STM32L4A6ZGT6P part is unused and in its original packaging.
Return procedure for STM32L4A6ZGT6P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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