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ARM® Cortex®-M3 STM32L1 Microcontroller IC 32-Bit Single-Core 32MHz 512KB (512K x 8) FLASH 100-LQFP (14x14)

Ovaga Certification

Brands: ST

Mfr.Part #: STM32L151VET6

Datasheet: STM32L151VET6 Datasheet (PDF)

Package/Case: LQFP100

Product Type: Embedded Processors & Controllers

RoHS Status:

Stock Condition: 2977 pcs, New Original

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STM32L151VET6 General Description

Includes ST state-of-the-art patented technologyUltra-low-power platform1.65 V to 3.6 V power supply-40 °C to 105 °C temperature range290 nA Standby mode (3 wakeup pins)1.11 µA Standby mode + RTC560 nA Stop mode (16 wakeup lines)1.4 µA Stop mode + RTC11 µA Low-power run mode down to 4.6 µA in Low-power sleep mode195 µA/MHz Run mode10 nA ultra-low I/O leakage8 µs wakeup timeCore: Arm®Cortex®-M3 32-bit CPUFrom 32 kHz up to 32 MHz max1.25 DMIPS/MHz (Dhrystone 2.1)Memory protection unitUp to 34 capacitive sensing channelsCRC calculation unit, 96-bit unique IDReset and supply managementLow-power, ultrasafe BOR (brownout reset) with 5 selectable thresholdsUltra-low-power POR/PDRProgrammable voltage detector (PVD)Clock sources1 to 24 MHz crystal oscillator32 kHz oscillator for RTC with calibrationInternal 16 MHz oscillator factory trimmed RC(+/-1%) with PLL optionInternal low-power 37 kHz oscillatorInternal multispeed low-power 65 kHz to 4.2 MHz oscillatorPLL for CPU clock and USB (48 MHz)Pre-programmed bootloaderUSB and USART supportedUp to 116 fast I/Os (102 I/Os 5V tolerant), all mappable on 16 external interrupt vectorsMemories512 Kbytes of Flash memory with ECC (with 2 banks of 256 Kbytes enabling RWW capability)80 Kbytes of RAM16 Kbytes of true EEPROM with ECC128-byte backup registerLCD driver (except STM32L151xE devices) up to 8x40 segments, contrast adjustment, blinking mode, step-up converterRich analog peripherals (down to 1.8 V)2x operational amplifiers12-bit ADC 1 Msps up to 40 channels12-bit DAC 2 ch with output buffers2x ultra-low-power comparators(window mode and wake up capability)DMA controller 12x channels11x peripheral communication interfaces1x USB 2.0 (internal 48 MHz PLL)5x USARTsUp to 8x SPIs (2x I2S, 3x 16 Mbit/s)2x I2Cs (SMBus/PMBus)11x timers: 1x 32-bit, 6x 16-bit with up to 4 IC/OC/PWM channels, 2x 16-bit basic timers, 2x watchdog timers (independent and window)Development support: serial wire debug, JTAG and traceSTM32L1 System View DescriptionSTM32L1 System View Description1.2STM32L1 IBIS modelsSTM32L1 IBIS models1.0STM32L1 Boundary Scan Description Language (BSDL) filesSTM32L1 Boundary Scan Description Language (BSDL) files1.1



  • ARM Cortex-M3 core operating at up to 32 MHz.
  • Flash memory ranging from 256 KB to 512 KB.
  • SRAM ranging from 32 KB to 80 KB.
  • Low-power features, including multiple low-power modes, power gating, and a voltage range of 1.65V to 3.6V.
  • Rich set of peripherals, including GPIOs, UART, SPI, I2C, ADC, DAC, timers, and more.
  • Security features, such as hardware encryption and decryption, secure boot, and memory protection unit (MPU).
  • LCD controller for driving segmented and dot matrix LCD displays.
  • Multiple oscillator options, including high-speed and low-power oscillators.
  • Temperature sensor and real-time clock (RTC) with backup registers.


  • Battery-powered devices, such as wearables, IoT devices, and portable medical devices.
  • Home automation and smart energy management systems.
  • Industrial automation and control systems.
  • Sensor networks and wireless communication systems.
  • Consumer electronics, including remote controls, gaming devices, and smart appliances.
  • Automotive applications, such as dashboard displays, telematics, and infotainment systems.


Parameter Value Parameter Value
Product Category ARM Microcontrollers - MCU RoHS Details
Series STM32L151VE Mounting Style SMD/SMT
Package / Case LQFP-100 Core ARM Cortex M3
Program Memory Size 512 kB Data Bus Width 32 bit
ADC Resolution 12 bit Maximum Clock Frequency 32 MHz
Number of I/Os 83 I/O Data RAM Size 80 kB
Supply Voltage - Min 1.65 V Supply Voltage - Max 3.6 V
Minimum Operating Temperature - 40 C Maximum Operating Temperature + 85 C
Analog Supply Voltage 1.65 V to 3.6 V Brand STMicroelectronics
DAC Resolution 12 bit Data RAM Type SRAM
Data ROM Size 16 kB Data ROM Type EEPROM
I/O Voltage 1.65 V to 3.6 V Interface Type I2C, I2S, SPI, USART, USB
Moisture Sensitive Yes Number of ADC Channels 25 Channel
Processor Series STM32L1 Product MCUs
Product Type ARM Microcontrollers - MCU Program Memory Type Flash
Factory Pack Quantity 540 Subcategory Microcontrollers - MCU
Tradename STM32 Watchdog Timers Watchdog Timer, Windowed
Unit Weight 0.091712 oz


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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

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Equivalent Parts

For the STM32L151VET6 component, you may consider these replacement and alternative parts:

Part Number




Part Number:  STM32L151RET6


Package:  LQFP64

Description:   ARM MCU, Ultra Low Power, STM32 Family STM32L1 Series Microcontrollers, ARM Cortex-M3, 32bit

Part Number:  STM32L151ZET6


Package:  144-LQFP

Description:   ARM MCU, Ultra Low Power, STM32 Family STM32L1 Series Microcontrollers, ARM Cortex-M3, 32bit

Part Number:  STM32L151VET3




Part Number:  STM32L151VET6TR


Package:  100-LQFP

Description:   IC MCU 32BIT 512KB FLASH 100LQFP

Part Number:  STM32L151VET3TR




Part Number:  STM32L151VET6H




Part Number:  STM32L151VET6J




Part Number:  STM32L151VET6Y




Part Number:  STM32L151VET6Z




Datasheet PDF

Preliminary Specification STM32L151VET6 PDF Download

Key points

  • The STM32L151VET6 chip is a microcontroller unit (MCU) developed by STMicroelectronics. It is based on the ARM Cortex-M3 processor and specifically designed for low-power applications. The chip offers a wide range of features, including multiple communication interfaces, real-time performance, and various integrated peripherals. With its power-saving capabilities, the STM32L151VET6 is suitable for applications in the Internet of Things (IoT), wireless connectivity, and battery-powered devices.
  • Equivalent

    Some equivalent products to the STM32L151VET6 chip include the STM32L151RBT6, STM32L151RET6, and STM32L151RCT6.
  • Features

    The STM32L151VET6 is a microcontroller with the ARM Cortex-M3 core. It has 512KB of flash memory, 80KB of SRAM, and operates at a maximum frequency of 32MHz. It features a wide range of peripherals including UART, I2C, SPI, PWM, and USB. It also has low-power operation with multiple power-saving modes.
  • Pinout

    The STM32L151VET6 is a microcontroller with 100 pins. It is based on the ARM Cortex-M3 core and has various functions such as GPIO, UART, SPI, I2C interfaces, timers, ADC, DAC, and more. Additionally, it offers low power consumption and multiple power-saving modes, making it suitable for use in battery-powered applications.
  • Manufacturer

    The manufacturer of the STM32L151VET6 is STMicroelectronics N.V., a multinational semiconductor company. Founded in 1987, it specializes in designing, manufacturing, and marketing a wide range of semiconductor solutions including microcontrollers, power transistors, and sensors. STMicroelectronics focuses on providing innovative technologies for various industries such as automotive, industrial, and consumer electronics.
  • Application Field

    Some application areas of the STM32L151VET6 microcontroller include portable medical devices, fitness trackers, smart home devices, wearable technology, and industrial sensors. It is specifically designed for low power and energy-efficient applications.
  • Package

    The STM32L151VET6 chip is available in a LQFP package format with a form factor of 100 pins. The package size is typically measured at 14mm x 14mm.

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