The STM32L1 series now hosts an entry level line, the STM32L100
The latest addition to ST’s STM32 L1 series, the STM32L100, is the perfect fit for applications that require a minimum processing power and ultra-low power consumption, all at a budget price.
The STM32L100 comes with a real-time clock, 16-bit timers, communication interfaces (SPI, I²C, USART, USB), analog peripherals, including a 12-bit ADC, and a LCD driver (up to 8x28 segments).
The STM32L100 Value line operates from 1.8 to 3.6 V and is available in the -40 to +85 °C temperature range.
All STM32 L1 series share the same architecture with the same memory mapping and are fully pin-to-pin compatible.

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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.
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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
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Recommended resources
AN5408 - Migrating from STM32L0, STM32L1, and STM32L4 Series associated with SX12xx transceivers to STM32WL Series microcontrollers
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