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STMicroelectronics STM32L452CCU6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L452CCU6 STM32L4 MCU, 80MHz Cortex-M4, 256KB Flash

MPNSTM32L452CCU6
Active

STMicroelectronics STM32L4 series ARM Cortex-M4 MCU, STM32L452CCU6, 80 MHz, 256 KB flash, 160 KB SRAM, 48-UFQFPN exposed-pad package, -40 to 85°C.

$6.2900Ref. price · indicative, final on quote
STMicroelectronics STM32L452CCU6 datasheet (PDF)
Packaging48-UFQFN Exposed Pad
RoHSROHS3 Compliant
SeriesSTM32L4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L452CCU6 specifications
ParameterValue
SeriesSTM32L4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed80MHz
PackageTray
RAM size160K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, PWM, WDT
ConnectivityCANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART, USB
Number of i (O)38
Core processorARM® Cortex®-M4
Case48-UFQFN Exposed Pad
Data convertersA/D 10x12b; D/A 1x12b
Program memory size256KB (256K x 8)

Product details

The STM32L452CCU6: The pad also serves as the primary ground return — the layout should connect it to the PCB ground with at least four vias inside the pad footprint.

Peripheral set and I/O budget

38 I/O lines are available in the 48-pin package. The connectivity block includes CANbus, USB, QSPI, SAI, and multiple UART/SPI/I2C interfaces — enough to drive a small display, log data to an external serial flash, and talk to a fieldbus gateway on the same chip. The 10-channel 12-bit ADC and single 12-bit DAC let the MCU handle analog sensor conditioning and analog output without an external converter, though the ADC's effective resolution depends on the reference noise and layout — a clean analog ground split is worth the board area.

Frequently asked questions

Is the STM32L452CCU6 a drop-in replacement for the STM32L151CBU6A?

No. The STM32L151CBU6A runs a Cortex-M3 core at 32 MHz with a different peripheral set and supply voltage (1.8 V). The packages differ, and the pinout is not compatible — a board redesign is required to move between the two.