128 KB Flash, 6 KB RAM — memory sizing for the firmware image
It packs 128 KB of program Flash and 6 KB of SRAM, plus a separate 2 KB EEPROM block for parameter storage — enough for mid-complexity control loops, sensor fusion, or communication protocol stacks in industrial and consumer gear. The 24 MHz clock gives roughly 20 MIPS throughput, which handles most real-time tasks without a cache.
Supply range spans 2.95 V to 5.5 V, so the same BOM works on a 3.3 V regulated rail or a 5 V industrial bus. No external level shifters needed for 5 V peripheral logic. The internal oscillator (16 MHz typical) and brown-out reset are included, reducing external component count.
68 I/Os with 16-channel 10-bit ADC
The 16-channel 10-bit ADC covers analog sensing without an external converter. On-chip peripherals include I²C, SPI, two UART/USART, LIN, and IrDA — enough for CAN-less designs (no CAN controller on this part).
ST lists this part as Active. The 80-LQFP package (14x14 mm) is a common footprint, easy to second-source if needed.