STMicroelectronics introduces microcontrollers for power - and cost-sensitive intelligent embedded applications

     STMicroelectronics' new microcontrollers, the STM32L4P5 and STM32L4Q5, extend the performance benefits of Arm® Cortex® processor cores to cost-sensitive and power-focused smart iot devices. These include energy meters, industrial sensors, medical sensors, fitness trackers, and smart home devices. St's new STM32L4 + microcontroller is cost-effective, integrates a minimum storage capacity of 512KB of flash memory and 320KB of SRAM, and offers compact 10mm x 10mm 64 pin and 7mm x 7mm 48 pin package options, allowing designers to eliminate design size constraints. For example, the appearance size of wearable devices.

     The new product features separate power pins for USB, analog peripherals and other circuits, integrates separate clock domains, and eight - and four-wire SPI external memory expansion interfaces, providing developers with design flexibility. The new device also integrates a 5Msample/s intelligent analog-to-digital converter (ADC), which has two modes, full speed mode to minimize sampling time, and low speed mode to reduce energy consumption.

     Thanks to STMicroelectronics' ultra-low power microcontroller technology, the new STM32L4 + MCU has seven main low power modes, giving designers the flexibility to manage power consumption and wake up times to minimize energy requirements. These products also support FlexPowerControl energy-efficient task processing technology, as well as batch processing mode that continues energy-efficient data acquisition when the CPU is stopped.

     EEMBC benchmark scores 409 CoreMark and 285 ULPMark-CP[CoreMark and ULPMark-CP are standard tests developed by the Embedded Microprocessor Benchmark Association EEMBC to measure processor core performance and activity/sleep load cycle energy consumption, respectively] demonstrate, The new microcontroller achieves the perfect combination of high performance and energy efficiency.

     The new controller also protects systems in industrial and medical applications with robust security, including flash error correction code (ECC) support and hardware parity for SRAM. Data protection features include hardware random number generator and IP protection of memory code access rights, and the STM32L4Q5 adds an encryption algorithm accelerator to the standard, supporting AES, RSA, DH and ECC algorithms.

     STMicroelectronics also expanded the STM32 development ecosystem with the introduction of the NUCLEO-L4P5ZG Nucleo-144 development board and the STM32L4P5G-DK Discovery Kit, each containing the STM32L4P5 microcontroller. With the market-proven STM32Cube ecosystem, the STM32CubeL4 MCU package supports microcontrollers such as the STM32L4P5 and STM32L4Q5, including hardware abstraction layer and underlying (HAL/LL) peripheral drivers, middleware components, and project examples. The new product also supports the STM32CubeMX initial code generator and configurator, including an easy-to-use power calculator that facilitates ultra-low power design.