소형에 UART 2개 이상인 MCU를 찾다보니 저렴한 가격에 STM32가 제일 좋은것 같다.
확인해 보니 아래과 같이 추려진다.
확인해 보니 아래과 같이 추려진다.
| Generic Part Number | Package | Operating Frequency (Processor speed) (MHz) | FLASH Size (Prog) (kB) | Internal RAM Size (kB) | 12 or 16-bit timers (IC/OC/PWM) | Serial Interface |
| STM32F101T4 | VFQFPN 36 6x6x1-0 | 36 | 16 | 4 | 2x16-bit (8/8/8) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816) |
| STM32F101T6 | VFQFPN 36 6x6x1-0 | 36 | 32 | 6 | 2x16-bit (8/8/8) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816) |
| STM32F101T8 | VFQFPN 36 6x6x1-0 | 36 | 64 | 10 | 3x16-bit (12/12/12) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816) |
| STM32F101TB | VFQFPN 36 6x6x1-0 | 36 | 128 | 16 | 3x16-bit (12/12/12) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816) |
| STM32F103T4 | VFQFPN 36 6x6x1-0 | 72 | 16 | 6 | 3x16-bit (12/12/14) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816);USB;CAN |
| STM32F103T6 | VFQFPN 36 6x6x1-0 | 72 | 32 | 10 | 3x16-bit (12/12/14) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816);USB;CAN |
| STM32F103T8 | VFQFPN 36 6x6x1-0 | 72 | 64 | 20 | 4x16-bit (16/16/18) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816);USB;CAN |
| STM32F103TB | VFQFPN 36 6x6x1-0 | 72 | 128 | 20 | 4x16-bit (16/16/18) | 1xSPI;1xI2C;2xUSART(IrDa, ISO7816);USB;CAN |
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