Touch Panel Controller Series
8 channels Capacitive Touch Sensor Controller
The CP2508 is 8 channels capacitive touch panel controller, used for
scroll, navigation and selection detection. The controller contains SPI or
I2C serial interface, extended GPIO, high PSRR LDO and in-built OSC.
The touch status can be read via serial interface or GPIO. Particularly,
adjacent sensor suppression (ASS) function ensures only one channel
active each time. The range of power is 2.8V ~ 3.6V.
Low-power operation makes the CP2508 ideal for battery-operated
systems, such as multimedia portable product. The CP2508 is specified
over the -40℃ to +85℃ temperature range.
- 40 oC ~ 85 oC
·Up to 8 channels
·Fast touch response time:15~20 ms
·High capacitance resolution(0.02pF @ 100uA charge current), measurement range is 0~80pF
·Touch status outputs in direct or coded mode optionally
·SPI or I2C interface selectable, and interrupt programmable
·In-built LDO for high PSRR
·Auto compensation the drift of environment (temperature or humidity) and supply voltage.
·3 types of operation mode: Power-down /Idle / Normal
·Support to configure sensitivity in software or hardware mode
·Adjacent Sensor Suppression（ASS）
·Low power consumption
·0.35um CMOS process, QFN32 package
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