Features: Core: ARM 32-bit Cortex™-M3 CPU, up to 72 MHz, 1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0-wait-state memory access, single-cycle multiplication and hardware division. 256 to 512 Kbytes of Flash memory, up to 64 Kbytes of SRAM. Flexible static memory controller with 4 chip selects, supporting Compact Flash, SRAM, PSRAM, NOR and NAND memory. LCD parallel interface, 8080/6800 mode. Clock, reset and power management: 2.0 to 3.6 V application power and I/O, POR, PDR and programmable voltage detector (PVD), 4 to 16 MHz crystal oscillator, internal 8 MHz factory-calibrated RC, internal 40 kHz calibrated RC, 32 kHz calibrated RTC oscillator. Sleep, stop and standby modes, VBAT powering the RTC and backup registers.