STMicroelectronics, 8 or 16bit ARM Cortex M4, STM32 Microcontroller, 48MHz, 2 Mbyte Flash, 169-Pin UFBGA

The STMicroelectronics devices are an ultra-low-power microcontrollers family (STM32L4+ Series) based on the high-performance Arm Cortex M4 32-bit RISC core. They operate at a frequency of up to 120 MHz The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all the Arm single-precision data-processing instructions and all the data types. The Cortex-M4 core also implements a full set of DSP (digital signal processing) instructions and a memory protection unit (MPU) which enhances the application's security. These devices embed high-speed memories (2 Mbytes of Flash memory and 640 Kbytes of SRAM), a flexible external memory controller (FSMC) for static memories (for devices with packages of 100 pins and more), two OctoSPI Flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

Power Supply 1.71 V to 3.6 V
Batch Acquisition Mode (BAM)
VBAT Mode 305 nA supply for RTC and 32 x 32-bit backup registers
Shutdown Mode 33 nA (5 wakeup pins)
Standby Mode 125 nA (5 wakeup pins)
Standby Mode with RTC 420 nA
Stop 2 Mode with RTC 2.8 μA
Run Mode 110 μA/MHz (LDO mode)
Wakeup from Stop Mode 5 μs