DS1746P70(2010) 查看數據表（PDF） - Maxim Integrated
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DS1746P70 Datasheet PDF : 16 Pages
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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
VCC
3.3V 10% or 5V 10%
3.3V 10% or 5V 10%
RECOMMENDED DC OPERATING CONDITIONS
(TA = Over the Operating Range)
PARAMETER
SYMBOL MIN TYP
Logic 1 Voltage All Inputs
VCC = 5V 10%
VIH
2.2
VCC = 3.3V 10%
VIH
2.0
Logic 0 Voltage All Inputs
VCC = 5V 10%
VCC = 3.3V 10%
VIL
-0.3
VIL
-0.3
DC ELECTRICAL CHARACTERISTICS
(VCC = 5.0V 10%, TA = Over the Operating Range.)
PARAMETER
SYMBOL MIN
Active Supply Current
Icc
TTL Standby Current
( CE = VIH)
Icc1
CMOS Standby Current
( CE VCC-0.2V)
Icc2
Input Leakage Current (any input)
IIL
-1
Output Leakage Current
(any output)
Output Logic 1 Voltage
(IOUT = -1.0 mA)
Output Logic 0 Voltage
(IOUT = +2.1 mA)
IOL
-1
VOH
2.4
VOL
Write Protection Voltage
VPF
4.25
TYP
MAX
VCC +
0.3V
VCC +
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
VSO
VBAT
1, 4
8 of 16
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