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Product Description
Basic Info: Feature STM32F103RET6 STM32F405RGT6 Core ARM Cortex-M3 ARM Cortex-M4 with FPU &DSP Max Frequency 72 MHz 168 MHz Flash Memory 512 KB 1024 KB (1 MB) RAM 64 KB 192 KB (128+64) Operating Voltage 2.0-3.6 V 1.8-3.6 V Package LQFP-64 LQFP-64 Advanced Peripherals 2x SPI, ...