DS1743 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1743 Datasheet PDF : 16 Pages
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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
-40C to +85C
VCC
3.3V 10% or 5V 10%
3.3V 10% or 5V 10%
RECOMMENDED DC OPERATING CONDITIONS
(TA = Over the Operating Range.)
PARAMETER
SYMBOL CONDITIONS MIN
Logic 1 Voltage All Inputs
Logic 0 Voltage All Inputs
VCC = 5V 10% 2.2
VIH
VCC = 3.3V
10%
2.0
VCC = 5V 10% -0.3
VIL
VCC = 3.3V
10%
-0.3
TYP
MAX
VCC
+0.3V
VCC
+0.3V
+0.8
+0.6
UNITS
V
V
V
V
NOTES
1
1
1
1
DC ELECTRICAL CHARACTERISTICS (5V)
( VCC = 5.0V 10%, TA = Over the Operating Range.)
PARAMETER
SYMBOL
Active Supply Current
ICC
TTL Standby Current
(CE = VIH, CE2 = VIL)
ICC1
CMOS Standby Current
(CE VCC - 0.2V; CE2 = GND + 0.2V)
ICC2
Input Leakage Current (Any Input)
IIL
Output Leakage Current (Any Output)
IOL
Output Logic 1 Voltage
(IOUT = -1.0mA)
Output Logic 0 Voltage
(IOUT = 2.1mA)
VOH
VOL1
Write-Protection Voltage
VPF
Battery Switchover Voltage
VSO
MIN
-1
-1
2.4
4.20
TYP
15
1
1
VBAT
MAX
50
3
3
+1
+1
0.4
4.50
UNITS
mA
mA
mA
A
A
V
NOTES
2, 3
2, 3
2, 3
1
1
1
1, 4
8 of 16
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