AT32F403ARET7

AT32F403ARET7 is a 32-bit Arm Cortex-M4F microcontroller from Artery Technology in an LQFP-64 package, running at 240 MHz with 512 KB of Flash and 224 KB of SRAM - the high-clock member of Artery's F403A line for motor control, industrial automation and designs moving up from Cortex-M3 parts. The 240 MHz M4F core with a hardware floating-point unit is the selection point: field-oriented control loops and signal processing get DSP-class throughput while staying in the mainstream 64-pin footprint, which keeps board layout and assembly unchanged across the tier. Selection advice: the E in RET7 is the 512 KB Flash grade of the F403A - the same LQFP-64 package ships in other densities, and the 1 MB step is the AT32F403ARGT7, so match the density letter to your firmware size before ordering. If the design needs an Ethernet MAC in the same footprint and memory tier, Artery's sibling part is the AT32F407RET7; stay with the F403A code when Ethernet is not used. Parameters verified against Artery Technology documentation.