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STM32H747AI 数据表(PDF) 112 Page - STMicroelectronics |
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STM32H747AI 数据表(HTML) 112 Page - STMicroelectronics |
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112 / 252 page  Electrical characteristics STM32H747xI/G 102/242 DS12930 Rev 1 fCPU1 Arm® Cortex®-M7 clock frequency VOS3 - - 200 MHz VOS2 - - 300 VOS1 - - 400 VOS0 - - 480(6) fCPU2 Arm® Cortex®-M4 clock frequency VOS3 - - 200 VOS2 - - 150 VOS1 - - 200 VOS0 - - 240(6) fACLK AXI clock frequency VOS3 - - 100 VOS2 - - 150 VOS1 - - 200 VOS0 - - 240(6) fHCLK AHB clock frequency VOS3 - - 100 VOS2 - - 150 VOS1 - - 200 VOS0 - - 240(6) fPCLK APB clock frequency VOS3 - - 50(8) VOS2 - - 75 VOS1 - - 100 VOS0 - - 120(6) 1. When RESET is released functionality is guaranteed down to VBOR0 min 2. Only for power-up sequence when the SMPS step-down converter is configured to supply the LDO and TJMax = 105 °C. 3. This formula has to be applied on power supplies related to the IO structure described by the pin definition table. 4. For operation with voltage higher than Min (VDD, VDDA, VDD33USB) +0.3V, the internal Pull-up and Pull-Down resistors must be disabled. 5. VOS0 is available only when the LDO regulator is ON. 6. TJmax = 105 °C. 7. At startup, the external VCORE voltage must remain higher or equal to 1.10 V before disabling the internal regulator (LDO). 8. Maximum APB clock frequency when at least one peripheral is enabled. Table 22. General operating conditions (continued) Symbol Parameter Operating conditions Min Typ Max Unit |
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