DS1746_10 Datasheet, PDF (8/16 Pages) Maxim Integrated Products – Y2K-Compliant, Nonvolatile Timekeeping RAMs

DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground..………………………………..……………………..-0.3V to +6.0V
Storage Temperature Range
EDIP ...................................................……………………...………………..……………….-40°C to +85°C
PowerCap ................................................................................................................………...-55°C to +125°C
Lead Temperature (soldering, 10s)…........................................................................................……………….+260°C
Note: EDIP is hand or wave-soldered only.
Soldering Temperature (reflow, PowerCap)......................................................................................…………+260°C
This is a stress rating only and functional operation of the device at these or any other condition 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.
OPERATING RANGE
RANGE
Commercial
Industrial
TEMP RANGE
0°C to +70°C, Noncondensing
-40°C to +85°C, Noncondensing
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 MIN TYP
Logic 1 Voltage All Inputs
V_CC = 5V 10%
V_IH
2.2
V_CC = 3.3V 10%
V_IH
2.0
Logic 0 Voltage All Inputs
V_CC = 5V  10%
V_CC = 3.3V  10%
V_IL
-0.3
V_IL
-0.3
DC ELECTRICAL CHARACTERISTICS
(V_CC = 5.0V 10%, T_A = Over the Operating Range.)
PARAMETER
SYMBOL MIN
Active Supply Current
Icc
TTL Standby Current
( CE = V_IH)
Icc₁
CMOS Standby Current
( CE V_CC-0.2V)
Icc₂
Input Leakage Current (any input)
I_IL
-1
Output Leakage Current
(any output)
Output Logic 1 Voltage
(I_OUT = -1.0 mA)
Output Logic 0 Voltage
(I_OUT = +2.1 mA)
I_OL
-1
V_OH
2.4
V_OL
Write Protection Voltage
V_PF
4.25
TYP
MAX
V_CC +
0.3V
V_CC +
0.3V
0.8
0.6
UNITS NOTES
V
1
V
1
V
1
V
1
MAX
85
6
4
+1
+1
0.4
4.50
UNITS NOTES
mA 2, 3, 10
mA
2, 3
mA
2, 3
A
A
1
1
V
1
Battery Switchover Voltage
V_SO
V_BAT
1, 4
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