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ST72734 Folha de dados(PDF) 32 Page - STMicroelectronics |
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ST72734 Folha de dados(HTML) 32 Page - STMicroelectronics |
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32 / 144 page ![]() ST72774/ST727754/ST72734 32/144 I/O PORTS (Cont’d) Figure 19. PB0 to PB3 Figure 20. PB4 to PB7 DR SEL DDR SEL PAD Alternate enable Alternate enable Alternate Alternate input output N-BUFFER 1 0 1 0 CMOS Schmitt Trigger VSS DR DDR latch latch DR SEL DDR SEL VDD PAD Analog switch Analog enable (ADC) PULL-UP P-BUFFER N-BUFFER 1 0 CMOS Schmitt Trigger VSS DR DDR latch latch 1 0 DR SEL |
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