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SLG46534 Folha de dados(PDF) 24 Page - Dialog Semiconductor |
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SLG46534 Folha de dados(HTML) 24 Page - Dialog Semiconductor |
24 / 172 page SLG46534_DS_107 Page 23 of 171 SLG46534 7.0 I/O Pins The SLG46534 has a total of 12 multi-function I/O pins which can function as either a user defined Input or Output, as well as serving as a special function, or serving as a signal for programming of the on-chip Non Volatile Memory (NVM). Refer to Section 2.0 Pin Description for normal and programming modepin definitions. Normal Mode pin definitions are as follows: • Pin 1: VDD power supply • Pin 2: general purpose input • Pin 3: general purpose input or output • Pin 4: general purpose input or output or analog comparator 0(+) • Pin 5: general purpose input or output with OE or analog comparator 0(-) • Pin 6: general purpose input or OD output SCL • Pin 7: general purpose input or OD output SDA • Pin 8: general purpose input or output with OE or analog comparator 1(+) • Pin 9: ground • Pin 10: general purpose input or output or analog comparator 0/1/2(-) • Pin 11: general purpose input or output with OE • Pin 12: general purpose input or output with OE • Pin 13: general purpose input or output or external clock input for OSC0 25 kHz/2 MHz • Pin 14: general purpose input or output or external clock input for OSC1 25 MHz Programming Mode pin definitions are as follows: • Pin 1: VDD power supply • Pin 2: VPP programming voltage • Pin 6: Programming SCL • Pin 7: Programming SDA • Pin 9: ground • Pin 12: programming mode control Of the 12 user defined I/O pins on the SLG46534, all but one of the pins (Pin 2) can serve as both digital input and digital output. Pin 2 can only serve as a digital input pin. 7.1 Input Modes Each I/O pin can be configured as a digital input pin with/without buffered Schmitt Trigger, or can also be configured as a low voltage digital input. Pins 4, 5, 8 and10 can also be configured to serve as analog inputs to the on-chip comparators. 7.2 Output Modes Pins 3, 4, 5, 6, 7, 8, 10, 11, 12, 13 and 14 can all be configured as digital output pins. 7.3 Pull Up/Down Resistors All I/O pins have the option for user selectable resistors connected to the input structure. The selectable values on these resistors are 10 k , 100 k and 1 M. In the case of Pin 2, the resistors are fixed to a pull-down configuration. In the case of all other I/O pins, the internal resistors can be configured as either pull-up or pull-downs. |
Nº de peça semelhante - SLG46534 |
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Descrição semelhante - SLG46534 |
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