Five new product lines added to the family with various packages and memory capacities

STMicroelectronics (hereinafter ST) has launched a new development ecosystem based on the latest low-power, high-performance STM32L4 microcontroller (MCU), and has added five product lines of the product family with various packages and memory capacities.

The new STM32L4 ecosystem is implemented on the easy-to-use STM32Cube platform, which is provided free of charge by ST. This platform consists of the STM32CubeMX initialization code generator and configurator, an easy-to-use power usage prediction function for ultra-low power designs, and the STM32CubeL4 package, which comprises middleware components, the Nucleo-32 Board-Support Package (BSP), the Hardware Abstraction Layer (HAL), and the Low-Layer Application Program Interface (LLAPI).

To enable the rapid launch of new projects, the thin-form factor Nucleo-L432KC board, the first Nucleo32 board to feature a thin-film QFN32 package-based MCU, features the STM32L432KCU6 device (UFQFPN32) and allows direct access to ARM® mbed™ online tools. In addition, it features an Arduino Nano pin layout, making function expansion simple, and integrates an ST-Link debugger/programmer to support large-capacity storage while enabling debugging without a probe.

The five new STM32L43x and STM32L44x MCU product lines consist of versatile products that combine various features such as integrated USB controllers, LCD controllers, and encryption algorithms for security-sensitive applications. With flash memory of up to 256 Kbytes and the availability of low-pin package options, they are suitable for cost-critical applications. Additionally, they provide digital peripherals such as a True Random-Number Generator (TRNG) and analog functions such as a 12-bit 5 Msample/s ADC, internal voltage reference, and ultra-low power comparator.

All new products incorporate ST's innovative low-power technology. This includes FlexPowerControl (FPC), which features functions such as individual supply voltage domains that independently gate power for analog peripherals, USB circuits, and I/O. Batch-Acquisition Mode (BAM) implements seven energy-efficient data capture and power reduction modes, maximizing power savings under various operating conditions through separate sub-modes.

ST's low-power technology, combined with the performance of the 32-bit ARM Cortex®-M4F core, achieved high efficiency in the EEMBC™ ULPBench™ test. In this test, the STM32L433 demonstrated a performance of 177 ULPMark™-CP[1] at 3.0V without using a step-down converter. In addition, when using ST’s ART Accelerator™, it achieved 273 CoreMark®, demonstrating a clear performance improvement.

The new devices are currently on sale and are available in small packages of 5 x 5mm QFN-32, 14 x 14mm LQFP-100, and 3.14 x 3.13mm WLCSP. The QFN-32-based STM32L431KBU6, featuring 128KByte Flash and 64KByte SRAM, starts at $2,045 for orders of 10,000 units.