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您好，最高工作data rate其实是和负载，和cable长度都有关。TCAN4550 能够支持到8Mbps的data rate。data rate中相关描述如下：
As the TCAN4550 supports CAN FD data rates up to 8 Mbps it is recommended to use a 40 MHz crystal and keep trace lengths matched and short as feasible between the processor and device。
关于data rate的测试报告，我在确认中，一旦收到回复，会通知您。
