5 and 6 Channel Capacitive Touch Sensor
Datasheet
Table 1.2 Pin Description for CAP1005 (continued)
PIN
NUMBER
PIN NAME
PIN FUNCTION
PIN TYPE
10
CS1
Capacitive Touch Sensor 1
Ground
AIO
Bottom Pad
GND
Power
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 CAP1005 / CAP1006 is unpowered.
Table 1.3 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.
SMSC CAP1005 / CAP1006
9
Revision 1.1 (08-05-09)
DATASHEET
SMSC [ SMSC CORPORATION ]
