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STMPE1801 数据表(PDF) 7 Page - STMicroelectronics

部件名 STMPE1801
功能描述  Xpander Logic™ 18-bit enhanced port expander with keypad controller
PDF  60 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STMPE1801 数据表(HTML) 7 Page - STMicroelectronics

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STMPE1801
Pin settings
Doc ID 17884 Rev 3
7/60
The default function is always GPIO. As soon as the key scanning is enabled through the
keypad registers, the function is then switched to the key function and then any configuration
made in the GPIO registers is ignored.
GPIO13
GPIO
Keypad column 5
GPIO14
GPIO
Keypad column 6
GPIO15
GPIO
Keypad column 7
GPIO16
GPIO
Keypad column 8
GPIO17
GPIO
Keypad column 9
Table 3.
GPIO pin function
Name
Primary function
Alternate function



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