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RM0345 数据表(PDF) 10 Page - STMicroelectronics |
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RM0345 数据表(HTML) 10 Page - STMicroelectronics |
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10 / 38 page ![]() Power supply RM0345 10/38 Doc ID 024080 Rev 3 Table 2. J15, J2 and J14 option cut traces(1) 1. Refer to Chapter Appendix D: Options placement for layout Jumper placement Option name Function Value Note J15 VRC33 open VRC33 signal is disconnected from the target application board close (default) VRC33 signal is connected to the target application board J2 VRC33 open (default) VRC33 signal is disconnected from the on board +3.3V signal close VRC33 signal is connected to the on board +3.3V signal J14 +5V supply open +5V is powered from J4 connector close (default) +5V is powered from target application via VDDREG pin of the QFP144 target footprint |
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