DS1286 Datasheet, PDF (9/18 Pages) Dallas Semiconductor – Watchdog Timekeeper

DS1284/DS1286
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………..-0.3V to +7.0V
Operating Temperature Range
Commercial………………………………………………………………………………..0C to +70C
Industrial………………………………………………………………………………...-40°C to +85°C
Storage Temperature Range………………………………………………………………...-40°C to +85°C
Soldering Temperature………………..……………...See IPC/JEDEC J-STD-020 Specification (Note 13)
Stresses beyond those listed as “Absolute Maxim Ratings” may cause permanent damage to the device. These are stress ratings only, any
functional operation of the device at these or any other conditions beyond the those indicated in operations section of the specifications is no
implied. Exposure to absolute maximum ratings for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(T_A = -40°C to +85°C or 0°C to +70°C.)
PARAMETER
SYMBOL MIN TYP
Power-Supply Voltage
V_CC
4.5
5.0
Input Logic 1
V_IH
2.2
Input Logic 0
V_BAT Input Voltage
V_IL
V_BAT
-0.3
2.4
3.0
MAX
5.5
V_CC +
0.3
+0.8
3.5
UNITS
V
V
V
V
NOTES
10
10
10
10
DC ELECTRICAL CHARACTERISTICS
(V_CC = 5V 10%, T_A = -40C to +85C or 0°C to +70°C.)
PARAMETER
SYMBOL MIN
Input Leakage Current
I_IL
-1.0
Output Leakage Current
I_LO
-1.0
I/O Leakage Current
CE  V_IH  V_CC
I_LIO
-1.0
Output Current at 2.4V
I_OH
-1.0
Output Current at 0.4V
Standby Current CE = 2.2V
Standby Current CE > V_CC - 0.5
I_OL
2.0
I_CCS1
I_CCS2
Active Current
I_CC
Write-Protection Voltage
V_TP
1.088
x V_BAT
TYP
3.0
1.26 x
V_BAT
MAX
+1.0
+1.0
+1.0
7.0
4.0
15
1.324
x V_BAT
UNITS
A
A
A
mA
mA
mA
mA
mA
V
NOTES
DC ELECTRICAL CHARACTERISTICS
(V_CC = 0V, V_BAT = 2.4V to 3.5V, T_A = 0°C to +70°C.)
PARAMETER
SYMBOL MIN
Battery Current (EOSC = 0)
I_BAT
TYP
+0.5
MAX UNITS NOTES
+0.6 A
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