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STMPE1208S 데이터시트(PDF) 22 Page - STMicroelectronics

부품명 STMPE1208S
상세설명  Xpander Logic with 12-channel touchkey
PDF  51 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE1208S 데이터시트(HTML) 22 Page - STMicroelectronics

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Register map and function description
STMPE1208S
22/51
EVR
Enviromental variance register
Address:
0x0D
Type:
R/W
Reset:
0x04
Description:
EVR is used to detect "Non-Touch" condition. Each step of EVR is equivalent to a
capacitance of 60 fF. Recommended value to EVR is 2-6 (EVR must always be
smaller than TVR).
ETC_WAIT
Enviromental tracking calibration wait time
Address:
0x0E
Type:
R/W
Reset:
0x27
Description:
Wait time for ETC operation, from the first instance of all 12 keys returning to no-touch
status. ETC wait time = ETC_Wait[7:0] *64 *clock period. A "non-touch" condition
must persist for this wait time, before an ETC operation is carried out.
7654
3
2
1
0
-
EVR
[6:0]
[7] RESERVED
[6:0] EVR [6:0]
7654
3
2
1
0
ETC_WAIT
[7:0]
[7:0] ETC_WAIT [7:0]



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