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
As part of our embedded online event, we had the pleasure of filming with Reinhard Keil, a Senior Director of Embedded Tools at ARM.
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.
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.
- STM32L162QD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
- STM32L162ZD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
- STM32L162QC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162VC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162RC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162RD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
- STM32L162VD-X Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162VE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162RC-A Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162VD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp, AES
- STM32L162ZE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162ZC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162RE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L162VC-A Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp, AES
- STM32L151CB Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, USB
- STM32L151VD-X Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp
- STM32L152CB Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151C8 Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB
- STM32L152C8 Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L152QE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L152RE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L152C6-A Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151VE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, MCD, USB, 2xOp-amp
- STM32L151ZE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L151C6-A Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, USB
- STM32L152VC-A Ultra-low-power Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L152UC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L151R8-A Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB
- STM32L152VD-X Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 2xOp-amp
- STM32L152R6-A Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151QE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L151R6-A Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, USB
- STM32L151RE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L152ZE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L152C8-A Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151C8-A Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB
- STM32L152VC Ultra-low-power Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L152QC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L151QC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L152ZC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L151ZC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L151CC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L151RB-A Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, USB
- STM32L151R6 Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, USB
- STM32L152R8-A Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L152CC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L151RC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L151VC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L152RC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L152QD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L151QD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L152R8 Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151ZD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L152ZD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L152RD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L151RD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L152C6 Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L152VD Ultra-low-power Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L152CB-A Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151VD Ultra-low-power ARM Cortex-M3 MCU with 384 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L152V8-A Ultra-low-power Cortex-M3 MCU with 64 Kbytes Flash, RTC, LCD, USB
- STM32L152R6 Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151C6 Ultra-low-power ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, USB
- STM32L151VB Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, USB
- STM32L152VB Ultra-low-power Cortex-M3 MCU with 128 Kbytes Flash, RTC, LCD, USB
- STM32L151V8 Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB
- STM32L152V8 Ultra-low-power Cortex-M3 MCU with 64 Kbytes Flash, RTC, LCD, USB
- STM32L151RB Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, USB
- STM32L152RB Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151V8-A Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB
- STM32L152VB-A Ultra-low-power Cortex-M3 MCU with 128 Kbytes Flash, RTC, LCD, USB
- STM32L151VB-A Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, USB
- STM32L151RC-A Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L151CB-A Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, USB
- STM32L152RB-A Ultra-low-power ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L151UC Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L151R8 Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB
- STM32L152VE Ultra-low-power ARM Cortex-M3 MCU with 512 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp
- STM32L152RC-A Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
- STM32L151VC-A Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 3xOp-amp
- STM32L100C6-A Ultra-low-power 32-bit Value Line ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L100C6 Ultra-low-power 32-bit Value Line ARM Cortex-M3 MCU with 32 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L100RB-A Ultra-low-power 32-bit Value Line ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L100R8 Ultra-low-power 32-bit Value Line ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L100RB Ultra-low-power 32-bit Value Line ARM Cortex-M3 MCU with 128 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L100R8-A Ultra-low-power 32-bit Value Line ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, LCD, USB
- STM32L100RC Ultra-low-power 32-bit Value Line ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB
