PCF8885 Capacitive 8-channel touch and proximity sensor with auto-calibration and very low power consumption Product data sheet
●General description:
The integrated circuit PCF8885 is a capacitive 8-channel touch and proximity sensorthat uses a patented (EDISEN) method to detect a change in capacitance on remote sensing plates. Changes in the static capacitances (as opposed to dynamic capacitance changes) are automatically compensated using continuous auto-calibration. Remote sensing plates (for example, conductive foils) can be connected to the IC1 using coaxial cable. The eight input channels operate independently of each other. There is also a built-in option for a matrix arrangement of the sensors: interrupt generation only when two channels are activated simultaneously, suppression of additional channel outputs when two channels are already active.
●Features and benefits
■Dynamic touch and proximity sensor with 8 sensor channels
■Support for matrix arrangement of sensors
■Sensing plates can be connected remotely
■Adjustable response time
■Adjustable sensitivity
◆Continuous auto-calibration
◆Digital processing method
◆Can cope with up to 6 mm of acrylic glass
■Direct and latching switch modes
■l2C Fast-mode Plus (Fm+) compatible interface
◆Two l2C-bus addresses
◆Cascading of two ICs possible
◆Interrupt signaling over l2C-bus
■Interrupt output
■Large voltage operating range (Vpp = 2.5 V to 5.5 V)
■Sleep mode (Ipp < 100 nA)
■Low-power battery operation possible (IDD ~ 10 uA)
■Operating temperature range (Tamb = -40 °C to +85 °C)
■Available in TSSOP28 and SOIC28 package
PCF8885 、 PCF8885TS 、 PCF8885TS/1 、 118 |
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[ Replacing mechanical switches ][ keyboard ][ Switches for medical applications ][ Switches for use in explosive environments ][ Audio control ][ Sliders and wheel-switches ][ Vandal proof switches ][ Switches ][ under the upholstery ][ leather ][ handles ][ mats ][ carpets ][ tiles ][ glass ][ Switches for home automation ][ Portable communication ][ entertainment units ][ White goods control panel ] |
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Datasheet |
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Please see the document for details |
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TSSOP28 |
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English Chinese Chinese and English Japanese |
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17 March 2014 |
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Rev. 3 |
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PCF8885 |
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1.1 MB |
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