The STM32L053R8H6 is an ultra-low-power 32-bit microcontroller from STMicroelectronics' STM32L0 series, built around an ARM Cortex-M0+ core clocked at 32 MHz.
Memory and peripheral mix for a sensor-node design
The 2 KB EEPROM holds calibration constants and configuration data that survive power loss — no external serial EEPROM needed. On-chip peripherals include a 12-bit ADC with 16 channels, a 12-bit DAC, DMA, a real-time LCD driver, and a USB interface.
Package and assembly considerations for the 64-TFBGA
The supplier device package is 64-TFBGA (5x5). The surface-mount footprint is compatible with standard BGA land patterns for a 64-ball, 0.5 mm pitch array.