STMicroelectronics STM32L4P5CET6

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L4
Packaging Tray |
Core Processor ARM® Cortex®-M4
Core Size 32-Bit Single-Core
Speed 120MHz
Connectivity CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG
Peripherals Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
Number of I/O 38
Program Memory Size 512KB (512K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 320K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V
Data Converters A/D 10x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 48-LQFP (7x7)
Package / Case 48-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L4P5CET6 from STMicroelectronics is a low-power ARM Cortex-M4 microcontroller with FPU, running at 120MHz. It offers 512KB flash and an impressive 320KB RAM, along with an LCD driver and rich analog peripherals. Operating from 1.71V to 3.6V, it is packaged in a 48-LQFP, making it ideal for battery-powered and space-constrained applications.

  • Large 320KB RAM: Enables complex data buffering and multitasking without external memory.
  • Ultra-Low Power with FPU: Balances performance and energy efficiency for portable devices.
  • Integrated LCD Driver: Simplifies display integration, reducing component count.
  • Wide Voltage Range (1.71V-3.6V): Supports operation from single-cell batteries or regulated supplies.

Wearable Health Monitors

With 320KB RAM and low-power modes, this MCU can buffer continuous sensor data (ECG, PPG) and run algorithms at 120MHz, while driving a small LCD.

Smart Meters

Use the low voltage operation and LCD driver to create energy meters with real-time display, processing metrology data efficiently.

IoT Edge Nodes

Combine the Cortex-M4 with low-power communication (LPUART) to process sensor data locally and transmit only relevant information, extending battery life.

Portable Instrumentation

The 320KB RAM allows large data buffers for oscilloscopes or multimeters, while the FPU handles signal processing.

Access Control Panels

Drive a keypad and LCD, while managing multiple authentication protocols (fingerprint, RFID) with the high-speed core.

Environmental Sensors

Log temperature, humidity, and gas readings to external flash, using the DMA to minimize power consumption.

Q: What is the core and speed?
A: It uses an ARM Cortex-M4 with FPU at 120MHz, optimized for low power.
Q: How much RAM does it have?
A: It features 320KB RAM, which is large for an L4 series MCU.
Q: Does it support LCD?
A: Yes, it has an LCD segment driver interface, suitable for small displays.
Q: What is the voltage range?
A: It operates from 1.71V to 3.6V, supporting low-voltage designs.
Q: What package is this?
A: It comes in a 48-LQFP package, compact for space-constrained designs.
Base Product Number : STM32L4P5CET6
120MHz 32-bit 48-LQFP ARM Cortex-M4 IoT LCD Low Power MCU STM32L4 Wearable
Q: What is the core and speed?
A: It uses an ARM Cortex-M4 with FPU at 120MHz, optimized for low power.
Q: How much RAM does it have?
A: It features 320KB RAM, which is large for an L4 series MCU.
Q: Does it support LCD?
A: Yes, it has an LCD segment driver interface, suitable for small displays.
Q: What is the voltage range?
A: It operates from 1.71V to 3.6V, supporting low-voltage designs.
Q: What package is this?
A: It comes in a 48-LQFP package, compact for space-constrained designs.