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STMPE1801BJR датащи(PDF) 22 Page - STMicroelectronics

номер детали STMPE1801BJR
подробное описание детали  Xpander Logic™ 18-bit enhanced port expander with keypad controller
PDF  60 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STMPE1801BJR датащи(HTML) 22 Page - STMicroelectronics

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Clocking system
STMPE1801
22/60
Doc ID 17884 Rev 3
8
Clocking system
In order to reduce the power consumption, the STMPE1801 turns off the oscillator during
Hibernate mode.
Figure 5.
Clocking system
8.0.1
Clock source
By default, when the STMPE1801 powers up, it derives a 32 kHz clock from the internal RC
oscillator for its operation.
There are 4 sources of reset:
RSTB pin
Low voltage detect (LVD) reset
Soft reset bit of the SYS_CTRL register
I2C reset from the I2C block.



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