The STM32L451, STM32L452 and STM32L462 parts integrate a Digital Filter for Sigma-Delta Modulators (DFSDM), enabling advanced audio capabilities such as noise cancellation or sound localisation on
an inexpensive microcontroller. Up to 512kbytes of on-chip Flash and 160kbytes of SRAM provide generous code and data storage.
The new MCUs feature a true random number generator, which streamlines development of security-conscious applications such as connected smart devices. The STM32L462 also features an AES-256 cryptographic hardware accelerator.
Other features include smart analogue peripherals such as a 12-bit, 5Msamples/s ADC, an internal voltage reference, and ultra low-power comparators. There are multiple timers, a motor-control channel and a temperature sensor. The STM32L452 also has a crystal-less USB2.0 controller.
The development ecosystem includes the STM32CubeMX initialisation-code generator and STM32CubeL4 package comprising middleware components, Nucleo-64 board support package, hardware abstraction layer and low-layer APIs. The STM32CubeMX has a power-estimation wizard which assists low-power design, and additional wizards for managing clock signals and pin assignments.
- 36μA/MHz active-mode current
- 375nA current in stand-by mode with real-time clock
- EEMBC® CoreMark® score of 273
- ULPBenchTM score of 245
- Up to 21 capacitive sensing channels
- Quad SPI memory interface
- Portable devices
- IoT edge nodes
- Wearable devices
- Consumer electronics
ArduinoTM Uno V3 connectivity support and ST morpho headers allow the user to expand the functionality of the STM32 Nucleo open development platform with a wide choice of specialised shields.
Orderable Part Number: NUCLEO-L452RE