The 50 I/O lines include USB OTG for host/device switching, SDIO for external Flash or SD card storage, SPI and I²C for sensor and display links, and UART/USART with LIN and IrDA for legacy fieldbus or infrared data links. The 16-channel 12-bit ADC reads analog inputs from thermistors, current shunts, or potentiometers without an external converter.
Lifecycle status — EOL hot, last-time-buy window
The STM32F401RCT6 carries an EOL hot lifecycle stage, meaning the manufacturer has announced end-of-life and a last-time-buy window is open. Procurement should secure final-order quantities now or plan a redesign.