X80140 Datasheet, PDF (5/18 Pages) Intersil Corporation – Voltage Supervisor/Sequencer Quad Programmable Time Delay with Local/Remote Voltage Monitors

X80140, X80141, X80142, X80143, X80144
V_CC
Initial
Power-up
V_REFi
ViMON
ViGDO
t_DPOR
t_DELAYi
t_TO
t_DELAYi
i = 1, 2, 3, 4
FIGURE 1. INITIAL POWER UP AND DELAY TIMING
MR
t_MR
ViGDO
RESET
t_DELAYi
t_MRE
t_DELAYi
+ t_SPOR
FIGURE 2. MANUAL RESET (MR)
Symbol Table
WAVEFORM INPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
OUTPUTS
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
MR
ViMON
(i= 1 to 4)
V1GDO
V2GDO
V3GDO
V4GDO
RESET
t_DELAY1
t_DELAY2
t_DELAY3
t_SPOR
t_DELAY4
Any ViGDO
(1st occurance)
FIGURE 3. ViGDO, RESET TIMINGS
t_DELAY1
t_DELAY2
t_DELAY3
t_SPOR
t_DELAY4
5
FN8153.0
January 20, 2005