STM6601AS2DDM6F View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM6601AS2DDM6F

Smart push-button on/off controller with Smart Reset™ and power-on lockout

STMicroelectronics 

STM6600, STM6601

Waveforms

Figure 19. Long push (option with enable deassertion)

Push-button

pressed and PB

connected to GND

Push-button held even

after tSRD expires and

EN is deasserted

After tEN_OFF expires

PB is monitored for

falling edge

PB

tSRD(1)

set by CSRD

PB status

ignored

SR

INT (2)

EN(3)

PB status

ignored

INT can go high, if PB goes high,

but system freezes and processor

won’t respond

VCC undervoltage detection status ignored

PSHOLD

tDEBOUNCE

if system freezes, processor won’t

respond to any INT status change

t INT_Min

tEN_OFF

1. tSRD period is set by external capacitor CSRD.

2. PB ignored during tINT_Min.

3. After tSRD expires EN is forced low.

tDEBOUNCE

AM00253v2

DocID15453 Rev 12

25/52

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