DS1747_10 Datasheet, PDF (8/16 Pages) Maxim Integrated Products – Y2K-Compliant, Nonvolatile Timekeeping RAMs

DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………………………..-0.3V to +6.0V
Operating Temperature Range (Noncondensing)
Commercial...……………………………………….......................................................................0°C to +70°C
Industrial……………………………………………………..……………………………………….-40°C to +85°C
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 device
reliability.
RECOMMENDED DC OPERATING CONDITIONS
(T_A = Over the Operating Range)
PARAMETER
SYMBOL MIN TYP
V_CC =
Logic 1 Voltage 5V10%
V_IH
2.2
All Inputs
V_CC =
3.3V10%
V_IH
2.0
V_CC =
Logic 0 Voltage 5V10%
V_IL
-0.3
All Inputs
V_CC =
3.3V10%
V_IL
-0.3
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
(V_CC = 5.0V  10%, T_A = Over the Operating Range.)
PARAMETER
SYMBOL MIN
Active Supply Current
Icc
TTL Standby Current
( CE = V_IH)
CMOS Standby Current
( CE  V_CC - 0.2V)
Input Leakage Current
(Any Input)
Output Leakage Current
(Any Output)
Output Logic 1 Voltage
(I_OUT = -1.0mA)
Output Logic 0 Voltage
(I_OUT = +2.1mA)
Write Protection Voltage
Icc₁
Icc₂
I_IL
-1
I_OL
-1
V_OH
2.4
V_OL
V_PF
4.25
Battery Switchover Voltage
V_SO
TYP
V_BAT
MAX
85
6
UNITS
mA
mA
NOTES
2, 3, 10
2, 3
4
mA
2, 3
+1
A
+1
A
1
0.4
1
4.50
V
1
1, 4
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