48 MHz Cortex-M0 — what the speed means for the bus
The STM32F058R8H7TR runs an ARM Cortex-M0 core at 48 MHz. The 64 KB Flash and 8 KB RAM set the firmware budget.
Mixed-signal front end
Nineteen 12-bit ADC channels and one 12-bit DAC are on-chip. That means you can read thermocouples, strain gauges, or current-sense resistors and output an analog setpoint without external converters — useful for panel instrumentation or closed-loop valve control. The internal oscillator trims the BOM by one crystal, though an external clock is still an option if the application needs tighter timing for CAN or USB.
This part is marked EOL hot in the lifecycle record. That means the manufacturer has issued a last-time-buy notice; new production through authorized channels has stopped or is winding down. There is no official pin-compatible second source listed; the STM32F0 family includes other density options, but a drop-in replacement requires checking the memory map and peripheral set against the firmware.