MCUs are supported by extended development ecosystem

Posted By : Enaie Azambuja
MCUs are supported by extended development ecosystem

STMicroelectronics has begun volume production of ultra-low-power STM32L45x MCUs, supported by a development ecosystem based on the easy-to-use and affordable STM32Cube platform. The STM32L451, STM32L452, and STM32L462 lines integrate a DFSDM, enabling advanced audio capabilities such as noise cancellation or sound localisation on an inexpensive microcontroller. Up to 512 Kbyte on-chip Flash and 160 Kbyte SRAM provide generous code and data storage.

The new MCUs also feature a True Random-Number Generator (TRNG) that streamlines development of security-conscious applications such as connected smart devices. The STM32L462 further enhances support for developing secure devices by integrating an AES-256 cryptographic hardware accelerator.

Other features include smart analog peripherals such as a 12-bit 5Msample/s ADC, internal voltage reference, and ultra-low-power comparators. There are multiple timers, a motor-control channel, temperature sensor, a capacitive-sensing interface, and 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 (BSP), Hardware Abstraction Layer (HAL), and Low-Layer APIs (LLAPIs). STM32CubeMX has a power-estimation wizard that assists low-power design and additional wizards for managing clock signals and pin assignments.

The Nucleo-64 board, NUCLEO-L452RE, provides an affordable and flexible way for users to try out new ideas and build prototypes. It integrates the ST-LINK/V2 probe-free debugger/programmer and can be expanded via Arduino-compatible headers.

Offering features unavailable in other ultra-low-power MCUs, the new STM32L4 devices deliver both high core performance and outstanding ultra-low-power efficiency. The EEMBC CoreMark score of 273 outperforms other ultra-low-power cores, while the ULPBench score of 245 confirms greater energy efficiency. Active-mode current of just 36µA/MHz enables longer runtime on small batteries and extends scope to create energy-neutral products powered from ambient sources.

Devices can be ordered now, in small-form-factor packages from QFN-48 to LQFP-100, including a 3.36mm x 3.66mm WLCSP. Prices start from $2.773 for the STM32L451CCU6 with 256 Kbytes Flash and 160 Kbytes SRAM in QFN-48, for orders of 10,000 pieces.

Prices for development boards start at $14 for the legacy-compatible Nucleo-64 board (NUCLEO-L452RE), which is available now. The NUCLEO-L452RE-P board with external DC/DC converter will be available to distributors in June 2017.

Downloads


You must be logged in to comment

Write a comment

No comments




Sign up to view our publications

Sign up

Sign up to view our downloads

Sign up

PPMA Show 2017
26th September 2017
United Kingdom NEC, Birmingham
World’s top 50 innovators from the industries of the future
27th September 2017
United Kingdom London
New Scientist Live 2017
28th September 2017
United Kingdom Excel, London
Kiosk Summit 2017
28th September 2017
United Kingdom London
act! 2017
28th September 2017
Germany NHOW Berlin