User guide

APX811/812
4-Pin Microprocessor Supervisor With Manual Reset
APX811/812 Rev. 2 5 of 10 OCTOBER 2009
DS31960 www.diodes.com © Diodes Incorporated
Switching Characteristics (T
A
=25
o
C)
Symbol Parameter Test Conditions Min Typ. Max Unit
t
d
Delay Time APX811/812
V
CC
> V
th-
+0.2V,
See timing diagram
140 200 280 ms
MR
to
RESET
delay (APX811/812)
V
CC
> V
th-
+0.2V,
V
IL
=0.3
×
V
CC
,
V
IH
=0.7
×
V
CC
- - 0.1 µs
t
PHL
Propagation (Delay) Time,
High-to-low-level Output
V
CC
to RESET delay
V
IL
= V
th-
-0.2V,
V
IH
= V
th-
+0.2V
- - 25 µs
MR to RESET delay
(APX811/812)
V
CC
> V
th-
+0.2V,
V
IL
=0.3
×
V
CC
,
V
IH
=0.7
×
V
CC
- - 0.1 µs
t
PLH
Propagation (Delay) Time,
Low-to-high-level Output
V
CC
to RESET delay
(APX811/812)
V
IL
= V
th-
-0.2V,
V
IH
= V
th-
+0.2V
- - 25 µs
Timing Diagram
Vth
Vth
/RESET
Vth
RESET
t
d
Vcc
RESET vs. Vcc Timing Diagram
td
td
td
/MR
Vcc
Vth
/RESET
RESET vs. /MR Timing Diagram
td
td