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STMPE812ABJR Datasheet(PDF) 25 Page - STMicroelectronics

Part # STMPE812ABJR
Description  Integrated 4-wire resistive touchscreen controller, pen-down/real-time mode, fullyautonomous
PDF  53 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE812ABJR Datasheet(HTML) 25 Page - STMicroelectronics

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STMPE812A
ADC controller
Doc ID 18225 Rev 4
25/53
9
ADC controller
A 12-bit ADC is integrated in the STMPE812A. The ADC could be used as generic analog-
digital converter, or a touchscreen controller capable of controlling a 4-wire resistive
touchscreen.
The ADC works ONLY with internal reference (equal to VCC), always 12 bit.
Table 9.
ADC controller registers
Address
Register name
Bit
Type
Reset
Description
0x20
ADC control
8
R/W
0x33
ADC control
0x21-0x22
ADC data
16
R
0x0000
ADC data access (P1)



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