CAP1026 datasheet(28/70 Pages) SMSC

Part #	CAP1026

Description	6 Channel Capacitive Touch Sensor with 2 LED Drivers

PDF	70 Pages

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Manufacturer	SMSC [SMSC Corporation]

Direct Link	http://www.smsc.com

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28 / 70 page

6 Channel Capacitive Touch Sensor with 2 LED Drivers

Datasheet

Revision 1.1 (08-05-09)

SMSC CAP1026

DATASHEET

4.1

Power States

The CAP1026 has three operating states depending on the status of the STBY and DSLEEP bits.

When the device transitions between power states, previously detected touches (for inactive channels)

are cleared and the status bits reset.

1. Fully Active - The device is fully active. It is monitoring all active Capacitive Sensor channels and

driving all LED channels as defined.

2. Standby - The device is in a lower power state. It will measure a programmable number of channels

(as determined by the Standby Channel register - default none). Interrupts will still be generated

Figure 4.1 System Diagram for CAP1026

CAP1026

CS6

Embedded Controller

VDD

CS4

CS2

3.3V – 5V

CS5

CS3

CS1

ADDR_COMM

LED2

LED1

3.3V – 5V

Touch

Button

Touch

Button

Touch

Button

Touch

Button

Touch

Button

Touch

Button

CAP1026 Datasheet(PDF) 28 Page - SMSC Corporation

CAP1026 Datasheet(HTML) 28 Page - SMSC Corporation

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