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STMPE1801 Datasheet(PDF) 41 Page - STMicroelectronics

No. de pieza STMPE1801
Descripción Electrónicos  Xpander Logic™ 18-bit enhanced port expander with keypad controller
PDF  60 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE1801 Datasheet(HTML) 41 Page - STMicroelectronics

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STMPE1801
Keypad controller
Doc ID 17884 Rev 3
41/60
KPC_ROW
Keypad controller row register
Address:
30
Type:
R/W
Reset:
0x00
Description:
Keypad row scanning
KPC_COL_HIGH
Keypad controller column (HIGH)
Address:
32
Type:
R/W
Reset:
0x00
Description:
Keypad column scanning register.
76
5
4
3
2
1
0
Input Row 0 - 7
RW
RW
RW
RW
RW
RW
RW
RW
00
0
0
0
0
0
0
[7:0] Input row 0 – 7:
‘1’: Turn on scanning of the corresponding row
.‘0’: Turn off
15
14
13
12
11
10
9
8
RESERVED
Output Column 8 - 9
R
R
R
R
R
R
RW
RW
00
0
0
0
0
0
0
[15:10] RESERVED
[9:8] OUTPUT COLUMN 8-9:
‘1’: Turn on scanning of the corresponding column.
‘0’: Turn off



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