STM32L452REY6TR

STMicroelectronics · STM32L4 Series

STMicroelectronics STM32L452REY6TR, STM32L4 series, 32-bit ARM Cortex-M4 MCU, 80 MHz, 512KB Flash, 160KB RAM, 1.71V–3.6V supply, 52 I/O, 64-WLCSP, -40°C to 85°C.

STMicroelectronics STM32L452REY6TR
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MOQ 1 · Tape & Reel (TR) Cut Tape (CT) · RoHS · EIA-481 · DAP/DDP · T/T

Technical specifications

STM32L452REY6TR specifications
Parameter / AttributeSpecification / Value
SeriesSTM32L4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed80MHz
PackageTape & Reel (TR) Cut Tape (CT)
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-UFBGA, WLCSP
Data convertersA/D 16x12b; D/A 1x12b
Program memory size512KB (512K x 8)

Technical details

It targets designs that need a DSP-capable core and a rich peripheral set — CAN, USB, QSPI, SAI, multiple UART/SPI/I²C — while keeping the power budget tight enough for battery operation.

The 64-WLCSP (3.36 x 3.66 mm) is a fine-pitch wafer-level chip-scale package — board design needs controlled impedance and a clean solder-paste stencil; rework requires a hot-air profile matched to the 0.4 mm ball pitch.

Connectivity and peripheral headroom

The QSPI interface can map an external Flash or PSRAM into the memory map, useful for code shadowing or data logging beyond the on-chip 512 KB. Brown-out detect and a watchdog are included for fail-safe operation.

STM32L452REY6TR
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