Datasheet

Waveforms STM6600, STM6601
20/52 Doc ID 15453 Rev 11
Figure 13. Power-up on STM660x with voltage dropout
1. PB detection on falling and rising edges.
2. Internal pull-down resistor 300 kΩ is connected to PS
HOLD
input during power-up.
3. INT
signal is held high during power-up.
V
CC
goes above V
TH+
and
t
DEBOUNCE
is counted again
V
TH–
V
CC
under-
voltage
detected
V
CC
drop
V
TH+
V
CC
VCC
LO
PB
(1)
EN
t
DEBOUNCE
t
REC
< t
ON_BLANK
INT signal is held high during power-up
PS
HOLD
(2)
RST
Push-button pressed and
PB connected to GND
< t
DEBOUNCE
INT
(3)
internal pull-down resistor
connected to PS
HOLD
input
V
CC–Min
AM00249v2