Datasheet
SLAS361D − JANUARY 2002 − REVISED AUGUST 2004
22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (continued)
0
1
t
d(BOR)
V
CC
V
(B_IT−)
V
hys(B_IT−)
V
CC(start)
Set signal for
POR circuitry
Figure 6. POR/Brownout Reset (BOR) vs Supply Voltage
V
CC(min)
V
CC
3 V
t
pw
0
0.50
1
1.50
2
0.001 1 1000
V = 3.0 V
Typical Conditions
1ns 1ns
t
pw
− Pulse Width − µs
V
CC(min)
− V
t
pw
− Pulse Width − µs
cc
Figure 7. V
CC(min)
Level With a Square Voltage Drop to Generate a POR/Brownout Signal
V
CC
0
0.50
1
1.50
2
V
CC(min)
t
pw
t
pw
− Pulse Width − µs
V
CC(min)
− V
3 V
0.001 1 1000
t
fall
t
rise
t
pw
− Pulse Width − µs
t
fall
= t
rise
V = 3.0 V
Typical Conditions
cc
Figure 8. V
CC(min)
Level With a Triangle Voltage Drop to Generate a POR/Brownout Signal