STM32L476RGT6U STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
The STM32L476RGT6U is a 32-bit ARM Cortex-M4 ultra-low-power microcontroller running up to 80 MHz with 1 MB Flash and 128 KB SRAM, featuring a rich peripheral set including USB OTG and 12-bit ADCs in a 64-pin LQFP package. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- STM32L476RGT6U Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STM32L476RGT6U?
- ARM Cortex-M4 core with FPU running at up to 80 MHz delivers DSP-capable performance at ultra-low-power consumption down to 1.06 µA in Stop 2 mode
- 1 MB dual-bank Flash memory with ECC enables live firmware update (FOTA) without interrupting code execution in the active bank
- USB OTG full-speed interface plus SPI, I2C, UART, CAN, and SAI peripherals in a 64-pin LQFP package support diverse connectivity and audio applications
What is STM32L476RGT6U used for?
The STM32L476RGT6U targets battery-powered IoT edge nodes, wearable medical devices, and industrial handheld instruments where sub-2 µA standby current and 80 MHz Cortex-M4 DSP performance must coexist. Its 1 MB dual-bank Flash supports secure over-the-air firmware updates in field-deployed metering and asset-tracking products. The USB OTG and multiple serial interfaces make it well suited for portable data loggers, smart sensor hubs, and audio processing applications requiring simultaneous wired connectivity and low-power sleep cycles.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the STM32L476RGT6U datasheet?
STM32L476RGT6U Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM32L476RGT6U?
Compatible alternatives and drop-in replacements for STM32L476RGT6U:
suggested
suggested
suggested
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 does the STM32L476RGT6U achieve sub-2 µA standby while still executing code at 80 MHz when active?
The STM32L476RGT6U uses STMicroelectronics' ultra-low-power process and multiple configurable power domains: in Stop 2 mode, current drops to 1.06 µA with RAM retention while all 80 MHz Cortex-M4 logic is gated off. On wake via RTC or external interrupt, the core restarts in microseconds, allowing duty-cycled operation — for example, 1 ms active at 80 MHz per 1 s interval — yielding an effective average current well below 100 µA in typical IoT sensor applications.
What advantage does dual-bank 1 MB Flash offer for field firmware updates in a deployed STM32L476RGT6U-based meter?
With dual 512 KB Flash banks, the STM32L476RGT6U can receive and write a new firmware image to the inactive bank while continuing to execute from the active bank, eliminating the service interruption that a single-bank erase-and-write cycle would cause. After successful write and CRC verification, the bootloader swaps banks on the next reset, ensuring the meter stays operational during over-the-air update windows of several minutes.
For a portable USB audio interface design, which STM32L476RGT6U peripherals reduce external component count?
The STM32L476RGT6U integrates USB OTG full-speed (supporting both host and device modes), SAI (Serial Audio Interface) for I2S-compatible codec connections, and a 12-bit ADC with up to 16 channels — eliminating separate USB bridge, I2S master, and front-end ADC chips. This on-chip integration can reduce the external component count by 5 to 8 ICs in a compact USB audio interface PCB fitting the 64-pin LQFP footprint.
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Why Buy from FindMyChip
About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
In Stock · 24h Response · Worldwide Shipping
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“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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