DS1554070 Ver la hoja de datos (PDF) - Maxim Integrated
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DS1554070 Datasheet PDF : 18 Pages
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DS1554 256k, Nonvolatile, Y2K-Compliant Timekeeping RAM
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 wave or hand-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 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 reliability.
OPERATING RANGE
RANGE
Commercial
Industrial
TEMP RANGE
0°C to +70°C
-40°C to +85°C
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
(Note 1)
VIH
VCC = 5V 10%
2.2
VIH
VCC = 3.3V 10%
2.0
Logic 0 Voltage All Inputs
(Note 1)
VIL
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
DC ELECTRICAL CHARACTERISTICS
(VCC = 5.0V 10%, TA = Over the operating range.)
PARAMETER
SYMBOL CONDITIONS
Active Supply Current
TTL Standby Current
(CE = VIH)
CMOS Standby Current
(CE VCC - 0.2V)
Input Leakage Current
(Any Input)
Output Leakage Current
(Any Output)
Output Logic 1 Voltage
(IOUT = -1.0 mA)
Output Logic 0 Voltage
ICC
ICC1
ICC2
IIL
IOL
VOH
VOL1
VOL2
(Notes 2, 3, 11)
(Notes 2, 3)
(Notes 2, 3)
(Note 1)
IOUT = 2.1 mA,
DQ0–7 Outputs
(Note 1)
IOUT = 7.0 mA,
IRQ /FT, and RST
Outputs (Notes 1, 5)
Write Protection Voltage
VPF
(Note 1)
Battery Switchover Voltage VSO
(Notes 1, 4)
MIN
-1
-1
2.4
4.20
TYP
40
3
2
VBAT
MAX
75
6
UNITS
mA
mA
6
mA
+1
A
+1
A
V
0.4
V
0.4
V
4.50
V
V
11 of 18
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