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STMPE2401 Fiches technique(PDF) 50 Page - STMicroelectronics

No de pièce STMPE2401
Description  24-bit Enhanced port expander with Keypad and PWM controller Xpander logic
PDF  55 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE2401 Fiches technique(HTML) 50 Page - STMicroelectronics

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Miscellaneous features
STMPE2401
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15
Miscellaneous features
15.1
Reset
STMPE2401 is equipped with an internal POR circuit that holds the device in reset state,
until the clock is steady and VCC input is valid. Host system may choose to reset the
STMPE2401 by asserting Reset_N pin.
15.2
Under voltage lockout
STMPE2401 is equipped with an internal UVLO circuit that generates a RESET signal,
when the main supply voltage falls below the allowed threshold.
15.3
Clock output
STMPE2401 provides a buffered 32KHz clock output at one of the GPIO as alternate
function. This clock could be used for cascading of multiple port expander devices, using
just 1 XTAL unit.



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