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DS1486 Datasheet

  • DS1486

  • RAMified Watchdog Timekeeper

  • Dallas   Dallas

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DS1486/DS1486P
ABSOLUTE MAXIMUM RATINGS*
Voltage on any Pin Relative to Ground
Operating Temperature
Storage Temperature
Soldering Temperature
*
-0.3V to +7.0V
0擄C to 70擄C
-40擄C to + 70擄C
260擄C for 10 seconds (See Note 14)
This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods of time may affect reliability.
RECOMMENDED DC OPERATING CONDITIONS
PARAMETER
Power Supply Voltage
Input Logic 1
Input Logic 0
SYMBOL
V
CC
V
IH
V
IL
MIN
4.5
2.2
-0.3
TYP
5.0
MAX
5.5
V
CC
+0.3
+0.8
(0擄C to 70擄C)
UNITS
V
V
V
NOTES
10
10
10
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Input Leakage Current
Output Leakage Current
I/O Leakage Current
Output Current @ 2.4V
Output Current @ 0.4V
Standby Current
CE
= 2.2V
Standby Current
CE
= V
CC
-0.5
Active Current
Write Protection Voltage
SYMBOL
I
IL
I
LO
I
LIO
I
OH
I
OL
I
CCS1
I
CCS2
I
CC
V
TP
MIN
-1.0
-1.0
-1.0
-1.0
(0擄C to 70擄C; V
CC
= 5V
鹵
10%)
TYP
MAX
+1.0
+1.0
+1.0
2.1
7.0
4.0
85
4.5
UNITS
mA
mA
mA
mA
mA
mA
mA
mA
V
NOTES
13
13
3.0
4.0
4.25
CAPACITANCE
PARAMETER
Input Capacitance
Output Capacitance
Input/Output Capacitance
SYMBOL
C
IN
C
OUT
C
I/O
MIN
TYP
7
7
7
MAX
15
15
15
(t
A
= 25擄C)
UNITS
pF
pF
pF
NOTES
9 of 17

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