168 MHz Cortex-M4 with 1 MB Flash — what you get
The STM32F407IGH6J is a 32-bit ARM Cortex-M4 MCU from STMicroelectronics' STM32F4 series, clocked at 168 MHz with 1 MB of Flash program memory and 192K x 8 of SRAM. It packs 140 I/O lines, a dual 12-bit ADC bank (24 channels) and a 2-channel 12-bit DAC, plus a full set of peripherals including CAN, Ethernet, USB OTG, and an external memory interface (EBI/EMI).
The STM32F407IGH6J includes CAN, Ethernet, USB OTG (FS/HS), SPI, I²C, UART/USART, and an external memory interface that can glue in an SRAM or NOR Flash chip. The 140 I/O are spread across the 201-ball UFBGA — routing a 4-layer board is standard practice for this density.
