STMicroelectronics STM32L451RET6

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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 80MHz
Connectivity CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART
Peripherals Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O 52
Program Memory Size 512KB (512K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 160K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V
Data Converters A/D 16x12b; D/A 1x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-LQFP (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L451RET6 from STMicroelectronics is an ultra-low-power ARM Cortex-M4 MCU running at 80MHz. It features 512KB flash and 160KB RAM, with a supply range of 1.71V to 3.6V. The 64-LQFP package and integrated DMA, PWM, and WDT make it ideal for energy-conscious industrial and IoT applications.

  • Ultra-low power: 1.71V operation extends battery life in portable devices.
  • Large memory: 512KB flash and 160KB RAM support complex firmware.
  • Efficient core: Cortex-M4 with FPU accelerates DSP tasks.
  • Rich peripherals: DMA and PWM reduce CPU load.

IoT Edge Nodes

The 80MHz Cortex-M4 with 512KB flash handles MQTT stacks and sensor fusion while maintaining low power.

Battery-Powered Wearables

1.71V minimum supply and 160KB RAM support complex algorithms in fitness trackers.

Smart Meters

DMA and PWM enable accurate pulse counting and display driving in utility metering.

Industrial Automation

64-LQFP package and -40°C to 85°C range suit PLC I/O modules and field controllers.

Medical Monitoring

Brown-out detection ensures safe operation in patient vital-sign monitors.

Robotics Controllers

High RAM and PWM channels allow multi-axis servo control with smooth motion profiles.

Q: What is the core and speed of STM32L451RET6?
A: It uses an ARM Cortex-M4 core running at 80MHz.
Q: How much flash and RAM does it have?
A: It offers 512KB flash and 160KB RAM for data-intensive applications.
Q: What is the supply voltage range?
A: It operates from 1.71V to 3.6V, suitable for low-power designs.
Q: Does it support DMA and PWM?
A: Yes, it includes DMA, PWM, WDT, and brown-out reset features.
Base Product Number : STM32L451RE
160KB RAM 32-bit MCU 512KB Flash 80MHz ARM Cortex-M4 Industrial IoT LQFP-64 Ultra-low-power Wearable
Q: What is the core and speed of STM32L451RET6?
A: It uses an ARM Cortex-M4 core running at 80MHz.
Q: How much flash and RAM does it have?
A: It offers 512KB flash and 160KB RAM for data-intensive applications.
Q: What is the supply voltage range?
A: It operates from 1.71V to 3.6V, suitable for low-power designs.
Q: Does it support DMA and PWM?
A: Yes, it includes DMA, PWM, WDT, and brown-out reset features.