Datasheet
SLVS336B − DECEMBER 2000 − REVISED JANUARY 2007
13
timing requirements at R
L
= 1 MΩ, C
L
= 50 pF, T
A
= −40°C to 85°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
DD
V
IH
= V
IT
+ 0.2 V, V
IL
= V
IT
− 0.2 V 5 1 µs
t
w
Pulse width
MR
V
DD
> V
IT
+ 0.2 V, V
IL
= 0.3 x V
DD
, V
IH
= 0.7 x V
DD
100
ns
t
w
Pulse width
WDI
V
DD
> V
IT
+ 0.2 V, V
IL
= 0.3 x V
DD
, V
IH
= 0.7 x V
DD
100 ns
switching characteristics at R
L
= 1 MΩ, C
L
= 50 pF, T
A
= −40°C to 85°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
d
Delay time
V
DD
≥ V
IT
+ 0.2 V,
MR
≥ 0.7 x V
DD
,
See timing diagram
60 100 140 ms
t
(tout)
Watchdog time-out
V
DD
> V
IT
+ 0.2 V,
See timing diagram
0.48 0.8 1.12 s
t
PLH
Propagation (delay) time,
low-to-high-level output
50% RESET to 50% CEOUT V
OUT
= V
IT
15 µs
V
DD
to RESET
V
IL
= V
IT
− 0.2 V,
V
IH
= V
IT
+ 0.2 V
2 5 µs
PFI to PFO
V
IL
= V
(PFI)
− 0.2 V,
V
IH
= V
(PFI)
+ 0.2 V
3 5 µs
t
PHL
Propagation (delay) time,
high-to-low-level output
MR
to RESET
V
DD
≥ V
IT
+ 0.2 V,
V
IL
= 0.3 x V
DD
,
V
IH
= 0.7 x V
DD
0.1 1 µs
50% CEIN to 50% CEOUT
V
DD
= 1.8 V 5 15 ns
50% CEIN to 50% CEOUT
CL = 50 pF only (see Note 6)
V
DD
= 3.3 V 1.6 5 ns
CL = 50 pF only (see Note 6)
V
DD
= 5 V 1 3 ns
Transition time V
DD
to BATTON
V
IL
= V
BAT
− 0.2 V,
V
IH
= V
BAT
+ 0.2 V,
V
(BAT)
< V
IT
3 µs
NOTE 6: Ensured by design.
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
Static Drain-source on-state resistance V
DD
to V
OUT
vs Output current
5
r
DS(on)
Static Drain-source on-state resistance V
BAT
to V
OUT
vs Output current
6
r
DS(on)
Static Drain-source on-state resistance vs Chip enable input voltage 7
I
DD
Supply current vs Supply voltage 8, 9
V
IT
Normalized threshold voltage vs Free-air temperature 10
High-level output voltage at RESET 11, 12
V
OH
High-level output voltage at PFO
vs High-level output current
13, 14
V
OH
High-level output voltage at CEOUT
vs High-level output current
15, 16, 17, 18
Low-level output voltage at RESET 19, 20
V
OL
Low-level output voltage at CEOUT
vs Low-level output current
21, 22
V
OL
Low-level output voltage at BATTON
vs Low-level output current
23, 24
t
p(min)
Minimum Pulse Duration at V
DD
vs Threshold voltage overdrive at V
DD
25
t
p(min)
Minimum Pulse Duration at PFI vs Threshold voltage overdrive at PFI 26
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