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CPT112S 设备隶属于 TouchXpress 系列，旨在通过 I²C 接口快速增加电容式触摸功能，无需复杂固件开发，大幅缩短电容感测应用的开发时间。
该器件支持多达 12 路电容传感输入，封装尺寸小至 3×3 mm QFN，是一款高度集成的解决方案，通过 I²C 与主处理器连接，提供简单易用的电容触摸扩展方案。设备还具备抗湿干扰、接近唤醒（wake-on-proximity）和蜂鸣器反馈等高级功能，进一步提升用户体验。所有触摸参数均可通过图形化配置工具进行设置，无需任何固件编写。消除复杂固件开发需求后，CPT112S 能让用户界面设计在最小开发投入下迅速实现。
KEY FEATURES
The CPT112S device is ideal for a wide range of capacitive touch applications including
the following:
*Silicon Labs Authorized Distributor
该器件支持多达 12 路电容传感输入，封装尺寸小至 3×3 mm QFN，是一款高度集成的解决方案，通过 I²C 与主处理器连接，提供简单易用的电容触摸扩展方案。设备还具备抗湿干扰、接近唤醒（wake-on-proximity）和蜂鸣器反馈等高级功能，进一步提升用户体验。所有触摸参数均可通过图形化配置工具进行设置，无需任何固件编写。消除复杂固件开发需求后，CPT112S 能让用户界面设计在最小开发投入下迅速实现。
KEY FEATURES
- No firmware development required
- Simple GUI-based configurator
- 12 Capacitive Sensor inputs with programmable sensitivity
- Configurable multi-button slider
- I2C interface to communicate to the host
- Lowest power capacitive sense solution
- Active — 200 μA
- Sleep — 1 μA
- Wake on proximity
- Superior noise immunity: SNR up to 270:1
- Moisture immunity
- Mutually-exclusive touch qualifier
- Button touch time-out to avoid false touches
- Buzzer output for audible touch feedback
The CPT112S device is ideal for a wide range of capacitive touch applications including
the following:
- Home appliances
- Instrument / Control panels
- White goods
- Medical equipment
- Consumer electronics
- Lighting control
*Silicon Labs Authorized Distributor
