stm6601gu2bdm6f STMicroelectronics, stm6601gu2bdm6f Datasheet - Page 24

• Manufacturer Part Number: stm6601gu2bdm6f
• Description: Smart Push-button On/off Controller With Smart Resettm Power-on Lockout
• Manufacturer: STMicroelectronics

Waveforms
Figure 18. Long push (option with RST assertion)
1. t
2. PB ignored during t
3. PS
4. Internal pull-down resistor 300 kΩ is connected to PS
24/51
PS
remains asserted, otherwise EN goes low.
SRD
HOLD
HOLD
INT
period is set by external capacitor C
RST
Note: EN is high.
(3, 4)
SR
PB
(2)
signal is ignored during t
and PB connected to
Push-button pressed
t
DEBOUNCE
GND
INT_Min
V
CC
.
undervoltage detection status ignored
PB status
ignored
respond to any INT status change
if system freezes, processor won’t
ON_BLANK
but system freezes and processor
t
therefore RST is asserted
INT can go high, if PB goes high,
INT _ Min
SRD
Push-button held even
. Its level is checked after t
.
set by C
won’t respond
t
SRD
after t
Doc ID 15453 Rev 7
(1)
SRD
HOLD
SRD
expires
input during startup when device is reset.
(valid for STM6600 and STM6601)
internal pull-down resistor
connected to PS
t
REC
ON_BLANK
PS
PS
therefore EN remains high
t
ON_BLANK
HOLD
HOLD
t
ON_ BLANK
ignored
state detected as high
expires and if it is high the EN signal
HOLD
expires
input
STM6600 - STM6601
PB is monitored
for falling edge
After t
t
ON_BLANK
DEBOUNCE
AM00252v2