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STMPE811 데이터시트(PDF) 8 Page - STMicroelectronics

부품명 STMPE811
상세설명  S-Touch® advanced resistive touchscreen controller with 8-bit GPIO expander
PDF  66 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
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STMPE811 데이터시트(HTML) 8 Page - STMicroelectronics

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Pin configuration and functions
STMPE811
8/66
Doc ID 14489 Rev 5
2.1
Pin functions
The STMPE811 is designed to provide maximum features and flexibility in a very small pin-
count package. Most of the pins are multi-functional. Table 3 and Table 4 show how to select
the pin’s function.
Table 3.
Pin configuration for IN2, IN3
Pin / control
register
GPIO_AF = 1
GPIO_AF = 0
ADC control 1 bit 1 =
don’t care
ADC control 1 bit 1 = 0
ADC control 1 bit 1 = 1
IN0
GPIO-0
ADC
IN1
GPIO-1
ADC
IN2
GPIO-2
ADC
External reference +
IN3
GPIO-3
ADC
External reference -
Table 4.
Pin configuration for X+, Y+, X-, Y-
Pin / control
register
GPIO_AF = 1
GPIO_AF = 0
TSC control 1 bit 0 =
don’t care
TSC control 1 bit 0 = 0
TSC control 1 bit 0 = 1
X+
GPIO-4
ADC
TSC X+
Y+
GPIO-5
ADC
TSC Y+
X-
GPIO-6
ADC
TSC X-
Y-
GPIO-7
ADC
TSC Y-



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