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STMicroelectronics STM32L476VGT3 — Microcontrollers & Processors (MCU / MPU / DSP)
STMicroelectronics

ST STM32L476VGT3 ARM Cortex-M4 MCU, 80 MHz, 1 MB Flash

MPNSTM32L476VGT3
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ST STM32L4 series, ARM Cortex-M4 32-Bit Single-Core MCU, 80 MHz, 1 MB (1M x 8) FLASH, 128K x 8 RAM, 100-LQFP, -40 to 125 °C, 1.71 V to 3.6 V supply.

$15.6600Ref. price · indicative, final on quote
STM32L476VGT3 datasheet
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Specifications

STM32L476VGT3 Technical Specifications
ParameterValue
SeriesSTM32L4
Mounting typeSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C~125°C(TA)
Speed80MHz
PackageTray
RAM size128K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, LCD, PWM, WDT
ConnectivityCANbus, EBI/EMI, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB OTG
Number of i (O)82
Core processorARM® Cortex®-M4
Case100-LQFP
Data convertersA/D 16x12b; D/A 2x12b
Program memory size1MB (1M x 8)

Product details

80 MHz Cortex-M4 with 1 MB Flash — what that means for the BOM

The STM32L476VGT3 is a 32-bit ARM Cortex-M4 MCU from ST's STM32L4 ultra-low-power series, clocked at 80 MHz with 1 MB of Flash and 128 KB of SRAM. The 80 MHz core with single-cycle multiply and hardware FPU handles sensor fusion, real-time control loops, and protocol stacks (USB OTG, CAN, multiple UARTs) without a co-processor. 1 MB Flash is enough for dual-image OTA firmware updates or a full FreeRTOS + TCP/IP stack with room to spare. The 128 KB SRAM supports moderate-sized frame buffers or data logging without external memory.

Connectivity and peripherals

82 I/Os give enough headroom for a parallel LCD (EBI/EMI), external memory-mapped QSPI Flash, and a CAN bus node on the same chip. The peripheral set includes USB OTG (host or device), multiple SPI/I²C, SAI for audio, and SWPMI for smartcard interfaces. The 16-channel 12-bit ADC and dual 12-bit DAC cover analog front-end tasks like current sensing or signal conditioning without an external converter.

Lifecycle and sourcing reality

Frequently asked questions

What is the closest pin-compatible alternative to STM32L476VGT3?

No official pin-compatible successor has been published by ST for this order code. The STM32L4 series includes higher-density or lower-pin-count variants, but none are confirmed as drop-in replacements. A full pinout and memory comparison is needed before substituting.

What is STM32L476VGT3's core speed?

The ARM Cortex-M4 core runs at 80 MHz, with single-cycle multiply and a hardware FPU for floating-point arithmetic.