DS1743 Datasheet, PDF (8/16 Pages) Dallas Semiconductor – Y2KC Nonvolatile Timekeeping RAM

DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………………-0.3V to +6.0V
Operating Temperature Range…………………………………………………………………….-40°C to +85°C
Storage Temperature Range……………………………………………………………………….-40°C to +85°C
Soldering Temperature (EDIP) (leads, 10 seconds)…………………….……………………………..…+260°C
Soldering Temperature…………………………………………..….See J-STD-020 Specification (See Note 8)
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 device reliability.
OPERATING RANGE
RANGE
Commercial
Industrial
TEMP RANGE
0°C to +70°C
-40°C to +85°C
V_CC
3.3V ±10% or 5V ±10%
3.3V ±10% or 5V ±10%
RECOMMENDED DC OPERATING CONDITIONS
(T_A = Over the Operating Range.)
PARAMETER
SYMBOL CONDITIONS MIN
Logic 1 Voltage All Inputs
Logic 0 Voltage All Inputs
V_CC = 5V ±10% 2.2
V_IH
V_CC = 3.3V
±10%
2.0
V_CC = 5V ±10% -0.3
V_IL
V_CC = 3.3V
±10%
-0.3
TYP
MAX
V_CC
+0.3V
V_CC
+0.3V
+0.8
+0.6
UNITS
V
V
V
V
NOTES
1
1
1
1
DC ELECTRICAL CHARACTERISTICS (5V)
( V_CC = 5.0V ±10%, T_A = Over the Operating Range.)
PARAMETER
SYMBOL
Active Supply Current
I_CC
TTL Standby Current
(CE = V_IH, CE2 = V_IL)
I_CC1
CMOS Standby Current
(CE ≥ V_CC - 0.2V; CE2 = GND + 0.2V)
I_CC2
Input Leakage Current (Any Input)
I_IL
Output Leakage Current (Any Output)
I_OL
Output Logic 1 Voltage
(I_OUT = -1.0mA)
Output Logic 0 Voltage
(I_OUT = 2.1mA)
V_OH
V_OL1
Write-Protection Voltage
V_PF
Battery Switchover Voltage
V_SO
MIN
-1
-1
2.4
4.20
TYP
15
1
1
V_BAT
MAX
50
3
3
+1
+1
0.4
4.50
UNITS
mA
mA
mA
μA
μA
V
NOTES
2, 3
2, 3
2, 3
1
1
1
1, 4
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