The STM32F091CCT6J: ARM Cortex-M0 core at 48 MHz, 256 KB Flash, 32 KB RAM, 13x12b ADC, 2x12b DAC, CAN, I²C, SPI, UART/USART.
STMicroelectronics lists the STM32F091CCT6J as obsolete. No last-time-buy window or official successor is recorded in the available lifecycle data. That means each procurement lot should be inspected for date code consistency and traceability, and the per-unit cost will reflect scarcity rather than factory pricing.
