STM32L1 series of ultra-low-power MCUs
ST’s Arm® Cortex®-M3-based STM32L1 series uses ST’s proprietary ultra-low-leakage process technology with an innovative autonomous dynamic voltage scaling and 5 low-power modes offering unprecedented platform flexibility to fit any application. The STM32L1 series extends the ultra-low-power concept with no compromise on performance.
As for the STM32L0 and STM8L, the STM32L1 offers dynamic voltage scaling, an ultra-low-power clock oscillator, LCD interface, comparator, DAC and hardware encryption.
More than just ultra-low-power MCUs, the STM32L1 series offers a wide portfolio of features, memory sizes and package pin counts. Combining ultra-low power and performance, the portfolio covers from 32 to 512 Kbytes of Flash memory (with up to
80 Kbytes of SDRAM and 16 Kbytes of true embedded EEPROM) and from 48 to 144 pins.
This innovative architecture (voltage scaling, ultra-low-power MSI oscillator) gives your design more performance for a very low power budget. The large number of embedded peripherals, such as USB, LCD interface, op amp, comparators, ADC with fast on/off mode, DAC, capacitive touch and AES, makes the STM32L1 series an expandable platform to fit all your requirements.
The series is available in 4 different lines: STM32L100 Value line, STM32L151, STM32L152 (LCD), STM32L162 (LCD and AES-128).
To simplify migration and give you all the flexibility you need, the STM32L1 is pin-to-pin compatible with the different STM32F series and opens the door to the full STM32 ecosystem.
- Ultra-low-power mode: 280 nA with backup registers (3 wakeup pins)
- Ultra-low-power mode + RTC: 900 nA with backup registers (3 wakeup pins)
- Low-power run mode: down to 9 μA
- Dynamic run mode: down to 177 μA/MHz
Featured Videos
This video is about the STM32L5, our recently announced ultra-low power microcontroller bringing a new security dimension. The STM32L5 is now in full production and all its ecosystem is available including hardware kits, software tools, firmware and all documentations of course. This is our first STM32 based on Cortex-M33 and its Trustzone and using specific ST security implementation - watch the video to find out more!
The STM32L5 is based on Arm® Cortex-M33 and TrustZone® technology combined with STMicroelectronics security implementation. On your STM32L562E-DK discovery board, TrustZone is disabled (factory setting) and you can develop as on any other STM32 device. This video shows how to enable TrustZone on STM32L562E-DK discovery using STM32CubeProgrammer and create, compile and debug or run a new project with STM32CubeIDE. It also shows how to open an example project delivered in STM32CubeL5 MCU Package, modify, compile and debug or run it. For further information, you can refer to AN5394 and AN5424 application notes.
MadeForSTM32™ is a new quality label delivered by ST, which is granted after an evaluation process. It helps engineers identify third party solutions with the highest level of integration and quality for the STM32 microcontrollers' ecosystem. MadeForSTM32™ is offered to members of the ST Partner Program who want to go one step further in our collaboration, with the overall objective of contributing to a high-quality STM32 ecosystem.
Getting started with STM32L1
- Purchase a 64-pin Nucleo board, Discovery kit or Evaluation kit for STM32L1 MCUs.
- Download the Free STM32CubeL1 embedded software package containing the HAL, LL (low-layer) APIs, and middleware. Then install ST’s Free STM32CubeMX graphical software configuration tool that supports pinout configuration, code generation and a power consumption calculator. Start with one of the many examples provided or build your own project.
STM32L1 Low power Wireless Solution (Sigfox)
To discover low-power wireless solutions based on the STM32L1, the STEVAL-FKI433V1 (430 – 470 MHz) and the STEVAL-FKI868V1 (860 - 940 MHz) development kit based on Spirit2 low-power Sub-GHz transceiver are now available.
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STM32L162QD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
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STM32L162ZD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
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STM32L162QC
Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162VC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162RC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162RD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
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STM32L162VD-X
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
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STM32L162VE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162RC-A
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162VD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
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STM32L162ZE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162ZC
Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162RE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L162VC-A
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
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STM32L151CB
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L151VD-X
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp
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STM32L152CB
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151C8
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152C8
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L152QE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L152RE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L152C6-A
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151VE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, MCD, USB, 2xOp-amp
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STM32L151ZE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L151C6-A
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152VC-A
Ultra-low-power Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L152UC
Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L151R8-A
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152VD-X
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 2xOp-amp
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STM32L152R6-A
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151QE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L151R6-A
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L151RE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L152ZE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L152C8-A
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151C8-A
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152VC
Ultra-low-power Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L152QC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L151QC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L152ZC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L151ZC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L151CC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L151RB-A
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L151R6
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152R8-A
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L152CC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L151RC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L151VC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L152RC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L152QD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L151QD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L152R8
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151ZD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L152ZD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L152RD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L151RD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L152C6
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L152VD
Ultra-low-power Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L152CB-A
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151VD
Ultra-low-power Arm Cortex-M3 MCU with 384 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L152V8-A
Ultra-low-power Cortex-M3 MCU with 64 Kbytes of Flash memory, RTC, LCD, USB
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STM32L152R6
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151C6
Ultra-low-power Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L151VB
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152VB
Ultra-low-power Cortex-M3 MCU with 128 Kbytes of Flash memory, RTC, LCD, USB
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STM32L151V8
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152V8
Ultra-low-power Cortex-M3 MCU with 64 Kbytes of Flash memory, RTC, LCD, USB
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STM32L151RB
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152RB
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151V8-A
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152VB-A
Ultra-low-power Cortex-M3 MCU with 128 Kbytes of Flash memory, RTC, LCD, USB
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STM32L151VB-A
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L151RC-A
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L151CB-A
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152RB-A
Ultra-low-power Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L151UC
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L151R8
Ultra-low-power Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, USB
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STM32L152VE
Ultra-low-power Arm Cortex-M3 MCU with 512 Kbytes of Flash memory, 32 MHz CPU, USB, 2xOp-amp
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STM32L152RC-A
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB, 3xOp-amp
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STM32L151VC-A
Ultra-low-power Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, USB, 3xOp-amp
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STM32L100C6-A
Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L100C6
Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU with 32 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L100RB-A
Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L100R8
Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L100RB
Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L100R8-A
Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU with 64 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
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STM32L100RC
Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU with 256 Kbytes of Flash memory, 32 MHz CPU, LCD, USB
Recommended Tools & Software
Recommended resources
AN5408 - Migrating from STM32L0, STM32L1, and STM32L4 Series associated with SX12xx transceivers to STM32WL Series microcontrollers
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