The STM32F20x family is based on the high-performance Arm® Cortex®-M3 32-bit RISC core operating at a frequency of up to 120 MHz. The family incorporates high-speed embedded memories (Flash memory up to 1 Mbyte, up to 128 Kbytes of system SRAM), up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals connected to two APB buses, three AHB buses and a 32-bit multi-AHB bus matrix. The devices also feature an adaptive real-time memory accelerator (ART Accelerator™) that allows to achieve a performance equivalent to 0 wait state program execution from Flash memory at a CPU frequency up to 120 MHz. This performance has been validated using the CoreMark® benchmark. All devices offer three 12-bit ADCs, two DACs, a low-power RTC, twelve general-purpose 16-bit timers including two PWM timers for motor control, two general-purpose 32-bit timers. a true number random generator (RNG). They also feature standard and advanced communication interfaces. New advanced peripherals include an SDIO, an enhanced flexible static memory control (FSMC) interface (for devices offered in packages of 100 pins and more), and a camera interface for CMOS sensors. The devices also feature standard peripherals. Features
Core: Arm® 32-bit Cortex®-M3 CPU (120 MHz max) with Adaptive real-time accelerator (ART Accelerator™) allowing 0-wait state execution performance from Flash memory, MPU, 150 DMIPS/1.25 DMIPS/MHz (Dhrystone 2.1) Memories Up to 1 Mbyte of Flash memory 512 bytes of OTP memory Up to 128 + 4 Kbytes of SRAM Flexible static memory controller that supports Compact Flash, SRAM, PSRAM, NOR and NAND memories LCD parallel interface, 8080/6800 modes Clock, reset and supply management From 1.8 to 3.6 V application supply + I/Os POR, PDR, PVD and BOR 4 to 26 MHz crystal oscillator Internal 16 MHz factory-trimmed RC 32 kHz oscillator for RTC with calibration Internal 32 kHz RC with calibration
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