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SRC0 Datasheet(PDF) 20 Page - STMicroelectronics

Part # SRC0
Description  Power-up duration determined primarily by push-button press
PDF  48 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SRC0 Datasheet(HTML) 20 Page - STMicroelectronics

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DocID026008 Rev 2
Figure 13. Power-up on STM660x with voltage dropout
1.
PB detection on falling and rising edges.
2.
Internal pull-down resistor 300 k
 is connected to PS
HOLD input during power-up.
3.
INT signal is held high during power-up.
VCC goes above VTH+ and
tDEBOUNCE is counted again
VTH–
VCC
under-
voltage
detected
VCC
drop
VTH+
VCC
VCCLO
PB
(1)
EN
tDEBOUNCE
tREC
< t ON_BLANK
INT signal is held high during power-up
PSHOLD
(2)
RST
Push-button pressed and
PB connected to GND
< t DEBOUNCE
INT
(3)
internal pull-down resistor
connected to PSHOLD input
VCC–Min
AM00249v2



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