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Technical reference
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STMicroelectronics
32-bit Microcontrollers - MCU High-performance, Arm Cortex-M33 with TrustZone, MCU with 2-MByte Flash, 640-Kbyte RAM, 250 MHz CPU
Semiconductors > Integrated Circuits - ICs > Embedded Processors & Controllers > Microcontrollers - MCU > 32-bit Microcontrollers - MCU