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CAP1088 Scheda tecnica(PDF) 10 Page - SMSC Corporation |
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CAP1088 Scheda tecnica(HTML) 10 Page - SMSC Corporation |
10 / 72 page 8 Channel Capacitive Touch Sensor with 8 LED Drivers Datasheet Revision 1.1 (08-05-09) 10 SMSC CAP1088 DATASHEET The pin types are described in detail below. All pins labeled with (5V) are 5V tolerant. APPLICATION NOTE: For the 5V tolerant pins that have a pull-up resistor, the pull-up voltage must not exceed 3.6V when the CAP1088 is unpowered. APPLICATION NOTE: The SPI_CS# pin should be grounded when SMBus, I2C, or BC-Link communications are used. 18 CS5 Capacitive Touch Sensor 5 AIO 19 CS4 Capacitive Touch Sensor 4 AIO 20 CS3 Capacitive Touch Sensor 3 AIO 21 CS2 Capacitive Touch Sensor 2 AIO 22 CS1 Capacitive Touch Sensor 1 AIO 23 VDD Positive Power supply Power 24 RESET Active high soft reset for system - resets all registers to default values. This pin contains an internal 50uA pull-down current. DI (5V) Bottom Pad GND Ground Power Table 1.2 Pin Types PIN TYPE DESCRIPTION Power This pin is used to supply power or ground to the device. DI Digital Input - This pin is used as a digital input. This pin is 5V tolerant. AIO Analog Input / Output -This pin is used as an I/O for analog signals. DIOD Digital Input / Open Drain Output- This pin is used as a digital I/O. When it is used as an output, it is open drain and requires a pull-up resistor. This pin is 5V tolerant. OD Open Drain Digital Output - this pin is used as a digital output. It is open drain and requires a pull-up resistor. This pin is 5V tolerant. DO Push-pull Digital Output - This pin is used as a digital output and can sink and source current. DIO Push-pull Digital Input / Output - This pin is used as an I/O for digital signals. Table 1.1 Pin Description for CAP1088 (continued) PIN NUMBER PIN NAME PIN FUNCTION PIN TYPE |
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