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STMicroelectronics STM32L452RET3 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L452RET3 MCU, ARM Cortex-M4 80MHz, 512KB Flash, 64-LQFP

MPNSTM32L452RET3
Active

STMicroelectronics STM32L4 series, STM32L452RET3, ARM Cortex-M4 32-Bit MCU, 80MHz, 512KB Flash, 160K x 8 RAM, 52 I/O, CANbus, I²C, SPI, UART/USART, USB, 64-LQFP, -40 to 125°C.

$9.6000Ref. price · indicative, final on quote
STMicroelectronics STM32L452RET3 datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM32L4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L452RET3 specifications
ParameterValue
SeriesSTM32L4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 125°C (TA)
Speed80MHz
PackageTray
RAM size160K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART, USB
Number of i (O)52
Core processorARM® Cortex®-M4
Case64-LQFP
Data convertersA/D 16x12b; D/A 1x12b
Program memory size512KB (512K x 8)

Product details

Designed for applications that balance processing throughput with power efficiency, it targets industrial control, motor drives, sensor hubs, and automotive body electronics where the 125°C rating allows deployment in under-hood or high-ambient environments.

Memory and peripheral fit for production firmware

The 52 I/O lines in the 64-LQFP package provide enough headroom for a sensor array or a human-machine interface with a parallel LCD.

The ROHS3 compliance covers the current regulatory requirements for EU and global markets.

Frequently asked questions

What is STM32L452RET3's listed speed on this component line?

The core is an ARM Cortex-M4 running at 80 MHz, which provides the processing headroom for real-time control loops and DSP tasks without an external accelerator.

Can STM32L452RET3 be used in low power applications?

Yes, it belongs to the STM32L4 ultra-low-power series and supports multiple low-power modes including Stop and Standby, with typical stop-mode current in the microamp range when the appropriate clock gating and voltage scaling are configured.