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STM32L451CEU3 - STMicroelectronics

Description: Ultra-low-power Arm® Cortex®-M4 32-bit MCU+FPU, 100DMIPS, up to 512KB Flash, 160KB SRAM, analog, audio

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STM32L451CEU3 - STMicroelectronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - UFQFPN48-ren1
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STM32L451CEU3 - STMicroelectronics  - 3D model - Quad Flat No-Lead - UFQFPN48-ren1
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STM32L451CEU3 Details

  • Manufacturer Part Number:

    STM32L451CEU3

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    QFN-48

  • Country Of Origin:

    Mainland China, Philippines, Taiwan

  • ECCN Code:

    3A991.A.2

  • HTS Code:

    8542.31.00.25

  • Factory Lead Time:

    12 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    9

  • Has ADC:

    YES

  • Bit Size:

    32

  • Boundary Scan:

    YES

  • CPU Family:

    CORTEX-M4

  • Clock Frequency-Max:

    48 MHz

  • DAC Channels:

    YES

  • DMA Channels:

    YES

  • Format:

    FLOATING POINT

  • Integrated Cache:

    NO

  • JESD-30 Code:

    S-XQCC-N48

  • JESD-609 Code:

    e4

  • Length:

    7 mm

  • Low Power Mode:

    YES

  • Moisture Sensitivity Level:

    3

  • Number of DMA Channels:

    14

  • Number of External Interrupts:

    16

  • Number of I/O Lines:

    38

  • Number of Serial I/Os:

    5

  • Number of Terminals:

    48

  • Number of Timers:

    12

  • On Chip Data RAM Width:

    8

  • On Chip Program ROM Width:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • PWM Channels:

    YES

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC48,.28SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • RAM (bytes):

    163840

  • ROM (words):

    524288

  • ROM Programmability:

    FLASH

  • Seated Height-Max:

    0.6 mm

  • Speed:

    80 MHz

  • Supply Current-Max:

    11.5 mA

  • Supply Voltage-Max:

    3.6 V

  • Supply Voltage-Min:

    1.71 V

  • Supply Voltage-Nom:

    3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    7 mm

  • uPs/uCs/Peripheral ICs Type:

    MICROCONTROLLER, RISC

STM32L451CEU3 Frequently Asked Questions (FAQs)

  • The maximum clock frequency that can be achieved with the internal oscillator is 32 MHz. However, it's recommended to use the internal oscillator in conjunction with the PLL to achieve higher frequencies up to 80 MHz.
  • To achieve the highest accuracy with the ADC, it's recommended to use the internal voltage reference (VREFINT), calibrate the ADC, and use the ADC in the 'scan mode' with a sampling rate of 7.5 cycles.
  • The maximum current that can be sourced by the GPIO pins is 20 mA, and the maximum current that can be sunk is 25 mA. However, it's recommended to limit the current to 10 mA to ensure reliable operation.
  • To implement a low-power mode, use the STOP mode, which reduces the power consumption to around 2.5 μA/MHz. You can also use the STANDBY mode, which reduces the power consumption to around 1.5 μA. Additionally, use the PWR clock gate to disable clocks to unused peripherals.
  • The maximum amount of flash memory that can be written in a single operation is 256 bytes. It's recommended to use the double buffering mechanism to write larger amounts of data to the flash memory.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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