IN1232
Table 4 – AC electrical characteristics
(Тamb = from -40 to +85
°С)
Symbol
t
TD1
Parameter
Watchdog timer overflow
time
Test conditions
t
ST
≥20
ns
TD = GND
TD disconnected
TD =
V
CC
t
PB
≥20
ms
V
CC
=5.0 V±10%
t
PB
≥20
ms
V
CC
=from 5.0 to
4.0 V
t
F
≥10 µs
V
CC
= from 5.0 to
4.0 V
t
R
≥1 µs
V
CC
=5.0 V±10%
V
CC
=5.0 V±10%
Typical
min
max
Units
62.5
250
ms
t
TD2
t
TD3
t
PDLY
t
RST
t
RPD
PBRST stable low to RST
and RST
Reset active time
V
CC
fail detect to RST and
250
500
-
250
-
1000
2000
20
1000
175
ms
ms
ms
ms
µs
RST
t
RPU
transition
V
CC
detect to RST and RST
250
1000
ms
Table 5 – Pin description
Pin
01
02
03
04
05
06
07
08
Symbol
PBRST
TD
TOL
GND
RST
RST
ST
V
CC
Pushbutton reset input
Time Delay Set
Selects 5% or 10% V
CC
Detect
Ground
Reset output (Active High)
Reset output (Active Low, open drain)
Strobe Input
Supply output from voltage source
Description
3
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