STM32L4 series – High performance and ultra-low-power

STM32L4 series – High performance and ultra-low-power

L4 is a leader in several benchmark tests, where also the activation time from the ULP mode to the active state is taken into account.


The STM32L496xx devices are the ultra-low-power microcontrollers based on the high-performance ARM® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHZ. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all ARM single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32L496xx devices embed high-speed memories (up to 1Mbyte of Flash memory, 320Kbyte of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

The STM32L496xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.

The devices offer up to three fast 12-bit ADCs (5 Msps.), two comparators, two operational amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four digital filters for external sigma delta modulators (DFSDM).

In addition, up to 24 capacitive sensing channels are available. The devices also embed an integrated LCD driver 8x40 or 4x44, with internal step-up converter. They also feature standard and advanced communication interfaces.

Key Features:

  • ultra-low-power microcontrollers based on the high-performance ARM®Cortex®-M4 32-bit RISC
  • Four I2Cs
  • Three SPIs
  • Three USARTs, two UARTs and one Low-Power UART.
  • Two SAIs (Serial Audio Interfaces)
  • One SDMMC
  • Two CAN
  • One USB OTG full-speed
  • One SWPMI (Single Wire Protocol Master Interface)
  • Camera interface
  • DMA2D controller
  • Rich industrial and external media connectivity
  • 125°C (+130 junction) temperature range
  • Best power consumption numbers with full flexibility
  • Integrated safety and security


Manufacturer’s Name















Detailed listing of ULP mode specifically



ULP modes are highly diversified - this increases the punch-through total ULP current balance for special applications (accumulated over all changing ULP modes used within an application)

Small Package - high integration with high memory size

Various application-specific integrated IPs, which support the display, the communication with the world outside, the connection of sensors and connection technology and analogous topics

Application-specific integrated SAFETY + SECURITY

Part Numbering


The STM32L496xx operates in the -40 to +85°C (+105°C junction), -40 to +105°C (+125°C junction) and -40 to +125°C (+130°C junction) temperature ranges from a 1.71 to 3.6V VDD power supply when using internal LDO regulator and a 1.05 to 1.32V VDD12 power supply when using external SMPS supply. A comprehensive set of power-saving modes allows the design of low-power applications.