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STM32L021D4 数据表(PDF) 35 Page - STMicroelectronics |
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STM32L021D4 数据表(HTML) 35 Page - STMicroelectronics |
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35 / 114 page  DocID027982 Rev 5 35/114 STM32L021x4 Pin descriptions 42 Figure 7. STM32L021x4 TSSOP20 pinout 1. The above figure shows the package top view. Figure 8. STM32L021x4 TSSOP14 pinout 1. The above figure shows the package top view. Table 11. Legend/abbreviations used in the pinout table Name Abbreviation Definition Pin name Unless otherwise specified in brackets below the pin name, the pin function during and after reset is the same as the actual pin name Pin type S Supply pin I Input only pin I/O Input / output pin I/O structure FT 5 V tolerant I/O FTf 5 V tolerant I/O, FM+ capable TTa 3.3 V tolerant I/O directly connected to the ADC TC Standard 3.3V I/O B Dedicated BOOT0 pin RST Bidirectional reset pin with embedded weak pull-up resistor |
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