comment on this article

MCUs feature on chip digital filter

STMicroelectronics has begun volume production of its STM32L45x MCU range. According to the company, devices in the STM32L451, STM32L452, and STM32L462 lines integrate a digital filter for Sigma-Delta modulators, enabling audio capabilities such as noise cancellation or sound localisation on an inexpensive microcontroller.

Featuring up to 512kbyte of flash and 160kbyte of SRAM, the Cortex-M4 based MCUs also come with a true random-number generator that is said to streamline the development of security-conscious applications. The STM32L462 adds an AES-256 cryptographic hardware accelerator.

Other features include 12bit 5Msample/s A/D converters, internal voltage reference and ultra-low-power comparators. Multiple timers and a motor-control channel are accompanied by a temperature sensor and a capacitive-sensing interface, while the STM32L452 has a crystal-less USB2.0 controller.

Available in package sizes ranging from QFN48 to LQFP100, including a 3.36 x 3.66mm WLCSP, the MCUs are said to have a CoreMark score of 273, a ULPBench rating of 245 and to consume 36µA/MHz.

Development tools include the STM32CubeMX initialization-code generator and the STM32CubeL4 package.

Graham Pitcher

Comment on this article

This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:

Add your comments


Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Transceiver family

Renesas has introduced the RAA78815x family of 5V differential RS-485/422 ...

Get to market faster

A quick look at using Vicor's PFM and AIM in VIA packaging for your AC to Point ...

Digital consciousness

​Would you consider uploading your brain to the cloud if it meant you could ...

IoT Everywhere

Mohamed Awad, VP of Arm’s IoT Business, discusses Arm’s vision for its IoT ...