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STMPE821 Datasheet(PDF) 37 Page - STMicroelectronics

Part # STMPE821
Description  8-bit Xpander Logic??with touchkey controller
PDF  55 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE821 Datasheet(HTML) 37 Page - STMicroelectronics

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STMPE821
Capacitive touch module registers
37/55
CALIBRATED_IMPEDANCE
Calibrated impedance
Address:
0x70 - 0x77
Type:
R
Reset:
0x00
Description:
Calibrated impedance is an integral reference value maintained by the device.
IMPEDANCE
Impedance
Address:
0x80 - 0x87
Type:
R
Reset:
0x00
Description:
Impedance is the instantaneous impedance value seen at the input pin of eac cap.
sensing pin.
765
432
10
CAL_IMPEDANCE
[7:0] CALIBRATED IMPEDANCE:
Calibrated reference impedance
765
432
10
IMPEDANCE
[7:0] IMPEDANCE:
Currently sensed impedance



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