STM32L4A6RGT6TR STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STM32L4A6RGT6TR is an ultra-low-power 32-bit ARM Cortex-M4 microcontroller running up to 80 MHz with 1 MB flash and 320 KB SRAM in a 64-pin LQFP package. It features an FPU for 100 DMIPS performance, AES hardware encryption, USB OTG FS, audio interface, and multiple ADC/DAC channels. Designed for IoT edge nodes, wearables, and portable industrial devices demanding long battery life with high processing capability.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- STM32L4A6RGT6TR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- ARM Cortex-M4 with FPU up to 80 MHz
- 1 MB flash and 320 KB SRAM
- AES-256 hardware encryption and HASH accelerator
- USB OTG full-speed device/host
- Ultra-low-power run mode below 100 µA/MHz
- Audio SAI interface and DAC outputs
Applications
The STM32L4A6RGT6TR targets IoT end nodes, wearable health monitors, and portable industrial instruments where ultra-low standby current and high Cortex-M4 processing performance must coexist. Its hardware AES-256 encryption engine supports secure firmware updates and encrypted BLE or LoRa payloads without CPU overhead, enabling secure connected device designs. The integrated USB OTG and audio SAI also make it suitable for portable medical audio equipment and USB-based smart metering gateways.
Specifications
| Date Of Intro | 2017-02-23 |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M4 |
| Clock Frequency-Max | 48MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| Format | FLOATING POINT |
| Integrated Cache | YES |
| JESD-30 Code | S-PQFP-G64 |
| Low Power Mode | YES |
| Number of DMA Channels | 14 |
| Number of External Interrupts | 16 |
| Number of I/O Lines | 52 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP64,.47SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| RAM (bytes) | 327680 |
| ROM (words) | 1048576 |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Current-Max | 13.31mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 5A992.C |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Mainland China, Taiwan |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32L4A6RGT6TR:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PQFP64
Frequently Asked Questions
How low is the STM32L4A6RGT6TR run-mode current consumption at full operating frequency?
The STM32L4A6RGT6TR achieves run-mode current consumption below 100 µA/MHz from a 3.3 V supply, meaning at 80 MHz the active current is under 8 mA. In stop mode 2 with RAM retention the supply current drops to approximately 1 µA, enabling coin-cell and energy-harvesting powered IoT designs with multi-year battery life.
Does the STM32L4A6RGT6TR include hardware cryptography acceleration for secure IoT designs?
Yes, the STM32L4A6RGT6TR integrates a hardware AES-256 encryption and decryption engine along with SHA-1 and SHA-256 HASH accelerators. These cryptographic peripherals offload encryption operations from the 80 MHz Cortex-M4 CPU, enabling secure over-the-air firmware updates and TLS session establishment in BLE or LoRaWAN IoT nodes without significant power or latency overhead.
Which audio and connectivity interfaces does the STM32L4A6RGT6TR support for multimedia applications?
The STM32L4A6RGT6TR provides a Serial Audio Interface (SAI) supporting I2S and TDM for connecting digital microphones and audio codecs, plus USB OTG full-speed for host and device audio class support. It also includes up to 3 UART, 2 SPI, 2 I2C, and a CAN interface, making it suitable for portable medical audio devices and connected sensor hubs requiring both audio capture and multi-protocol communication from a single 1 MB flash chip.
How does the STM32L4A6RGT6TR compare to an STM32L476 for designs needing more SRAM?
The STM32L4A6RGT6TR offers 320 KB of SRAM versus 128 KB in the STM32L476RGT6, making it the preferred choice when audio buffering, large TLS session buffers, or real-time OS stacks exceed 128 KB. Both devices share the same 80 MHz Cortex-M4 core and 1 MB flash, so firmware migration requires minimal changes beyond updating linker scripts and peripheral initialization for the additional 192 KB SRAM bank.
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