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SLG46531 Folha de dados(PDF) 27 Page - Dialog Semiconductor |
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SLG46531 Folha de dados(HTML) 27 Page - Dialog Semiconductor |
27 / 170 page SLG46531_DS_109 Page 26 of 169 SLG46531 7.0 I/O Pins The SLG46531 has a total of 18 multi-function I/O pins which can function as either a user defined Input or Output, as well as serving as a special function (such as outputting the voltage reference), 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 with OE • Pin 4: general purpose input or output • Pin 5: general purpose input or output with OE • Pin 6: general purpose input or output or analog comparator 0(+) • Pin 7: general purpose input or output with OE or analog comparator 0(-) • Pin 8: general purpose input or OD output SCL • Pin 9: general purpose input or OD output SDA • Pin 10: general purpose input or output with OE or analog comparator 1(+) • Pin 11: ground • Pin 12: general purpose input or output or analog comparator 1(-) • Pin 13: general purpose input or output with OE or analog comparator 2(+) • Pin 14: general purpose input or output with OE or analog comparator 2(-) • Pin 15: general purpose input or output or analog comparator 3(+) • Pin 16: general purpose input or output with OE • Pin 17: general purpose input or output • Pin 18: general purpose input or output with OE and Vref output (VREF2) • Pin 19: general purpose input or output with OE and Vref output (VREF1) • Pin 20: general purpose input or output or external clock input Programming Mode pin definitions are as follows: • Pin 1: VDD power supply • Pin 2: VPP programming voltage • Pin 8: Programming SCL • Pin 9: Programming SDA • Pin 11: ground • Pin 16: programming mode control Of the 18 user defined I/O pins on the SLG46531, 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 6, 7, 10, 12, 13, 14, and 15 can also be configured to serve as analog inputs to the on-chip comparators. Pins 18 and 19 can also be configured as analog reference voltage inputs. 7.2 Output Modes Pins 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 17, 18, 19, and 20 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 - SLG46531 |
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Descrição semelhante - SLG46531 |
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