32 MHz Cortex-M0+ with 64 KB Flash — what it fits
The STM32L052C8T7: 48-LQFP package, 37 I/Os, USB, I²C, SPI, UART, I²S, DMA, PWM, 12-bit ADC (10 channels), 12-bit DAC.
Industrial temperature and supply flexibility
Internal oscillator eliminates one external crystal for many applications.
Memory and peripheral set for sensor and control nodes
64 KB Flash is enough for moderate firmware stacks — bootloader, USB stack, sensor fusion, or Modbus RTU — and the 2 KB EEPROM saves configuration data without wearing the Flash. The 8 KB SRAM is tight for heavy buffering but adequate for typical control loops and register-based peripherals. The 10-channel 12-bit ADC and single 12-bit DAC handle analog front-end tasks, while USB, SPI, and UART/USART provide connectivity for sensor hubs, data loggers, and human-machine interfaces.
ST lists the STM32L052C8T7 as Active (current production). The base product number STM32L052 covers a range of Flash and RAM options in the same 48-LQFP footprint, giving some density headroom if firmware grows.