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MPR081 Datasheet(PDF) 4 Page - Freescale Semiconductor, Inc |
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MPR081 Datasheet(HTML) 4 Page - Freescale Semiconductor, Inc |
4 / 22 page MPR081 Sensors 4 Freescale Semiconductor Figure 2. MPR081 Pinout Table 6. Pin Description Pin Name Function 1RST Reset Input. Active low clears the 2-wire interface and puts the device in the same condition as power-up reset. 2IRQ Interrupt Output. IRQ is the active-low open-drain interrupt output signalling new events. 3 VDD Positive Supply Voltage Bypass VDD to VSS with a 0.1µF ceramic capacitor 4 VSS Ground 5 SCL I²C-Compatible Serial Clock Input 6 SDA I²C-Compatible Serial Data I/O 7 AD0 Address input 0. Connect to VSS to select device slave address 0x4C. Connect to VDD to select device slave address 0x4D. 8 SOUNDER Sounder driver output. Connect a piezo-ceramic sounder from this output to ground. Output is push-pull. 9 - 16 RNW, RW, RSW, RS, RSE, RE, RNE, RN Rotary Touch Inputs. Connect the 8 inputs to a 16-position rotary sensor. PAD Exposed Pad Exposed Pad on Package Underside (QFN only). Connect to VSS. RS RSW RW RNW VDD VSS RST IRQ MPR081Q 1 8 7 6 5 4 3 2 13 14 15 16 12 9 10 11 RN RNE RE RSE RS RSW RW RNW VDD VSS SCL SDA AD0 SOUNDER RST IRQ MPR081EJ 1 4 3 2 5 8 7 6 16 13 14 15 12 9 10 11 |
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