STM32
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These are the STM32 microcontrollers I have. You can get more information from the manufacturer. For the whole product line see STM32 MCUs 32-bit Arm Cortex-M.
| Moniker | Part | Core | Max Clock | Flash | SRAM | Note | Link |
|---|---|---|---|---|---|---|---|
| F1 | STM32F103C8T6 | Cortex-M3 | ~72 MHz | ~64 KB | 20 KB | Low-cost general embedded, huge community | Amazon |
| F4 | STM32F411CEU6 | Cortex-M4 + FPU | 100 MHz | 512 KB | 128 KB | High-performance general purpose + USB OTG | AliExpress |
| G4 | STM32G431CBU6 | Cortex-M4 + FPU | 170 MHz | ~128 KB | ~32 KB | Mixed-signal/control: fast ADCs + analog blocks | AliExpress |