STMicroelectronics STM32L451CCU6TR

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L4
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor ARM® Cortex®-M4
Core Size 32-Bit Single-Core
Speed 80MHz
Connectivity CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, UART/USART
Peripherals Brown-out Detect/Reset, DMA, PWM, WDT
Number of I/O 38
Program Memory Size 256KB (256K 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 10x12b; D/A 1x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 48-UFQFPN (7x7)
Package / Case 48-UFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L451CCU6TR from STMicroelectronics is an ultra-low-power ARM Cortex-M4 MCU running at 80MHz. It provides 256KB flash and 160KB RAM, operating from 1.71V to 3.6V. The 48-UFQFN package includes DMA, PWM, and brown-out detection, making it ideal for power-sensitive embedded applications.

  • Ultra-low voltage (1.71V): Extends battery life in portable designs.
  • 160KB RAM: Large buffer for data-intensive applications.
  • 80MHz Cortex-M4 with FPU: Efficient floating-point math for control loops.
  • Compact 48-UFQFN: Small footprint for space-constrained PCBs.
  • Rich peripherals (DMA, PWM, WDT): Reduces external components.

Battery-Powered Sensors

Ultra-low voltage (1.71V) and 160KB RAM support complex sensor fusion in wearables.

Industrial Process Control

80MHz Cortex-M4 with FPU handles PID loops and PWM for actuators.

Smart Meters

Low power modes and wide voltage range enable long-life utility meters.

Portable Medical Devices

Compact UFQFN package and low power suit glucose monitors and pulse oximeters.

Home Automation

DMA and PWM drive LED lighting and motorized blinds efficiently.

Data Loggers

Large RAM buffer and WDT ensure reliable long-term logging.

Q: What is the core and speed?
A: ARM Cortex-M4 at 80MHz.
Q: What is the voltage range?
A: 1.71V to 3.6V.
Q: How much flash and RAM?
A: 256KB flash and 160KB RAM.
Q: What package is this?
A: 48-UFQFN Exposed Pad.
Q: Does it have DMA and PWM?
A: Yes, both are integrated.
Base Product Number : STM32L451CCU6
160KB RAM 256KB Flash 80MHz ARM Cortex-M4 DMA Industrial IoT Low Power Medical PWM STM32 STMicroelectronics UFQFN-48
Q: What is the core and speed?
A: ARM Cortex-M4 at 80MHz.
Q: What is the voltage range?
A: 1.71V to 3.6V.
Q: How much flash and RAM?
A: 256KB flash and 160KB RAM.
Q: What package is this?
A: 48-UFQFN Exposed Pad.
Q: Does it have DMA and PWM?
A: Yes, both are integrated.