DS1553 Datasheet, PDF (9/19 Pages) Maxim Integrated Products – 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM

DS1553 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground
Storage Temperature Range
Soldering Temperature
-0.3V to +6.0V
-40°C to +85°C
260°C for 10 seconds (DIP Package) (Note 8)
See IPC/JEDEC Standard J-STD-020A for
Surface Mount Devices
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
Temperature
0°C to +70°C
V_CC
3.3V ±10% or 5V ±10%
RECOMMENDED DC OPERATING CONDITIONS
(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_IL
-0.3
V_CC = 3.3V ±10%
V_IL
-0.3
MAX
V_CC x
+0.3V
V_CC x
+0.3V
+0.8
+0.6
UNITS
V
V
NOTES
1
1
1
1
DC ELECTRICAL CHARACTERISTICS
(V_CC = 5.0V ±10%, over the operating range.)
PARAMETER
SYMBOL
MIN
Active Supply Current
I_CC
TTL Standby Current (CE = V_IH)
I_CC1
CMOS Standby Current
(CE ³ V_CC - 0.2V)
I_CC2
Input Leakage Current (Any Input)
I_IL
-1
Output Leakage Current (Any Output)
Output Logic 1 Voltage
(I_OUT = -1.0mA)
Output Logic 0 Voltage
(I_OUT = 2.1mA, DQ0-7 Outputs);
(I_OUT = 7.0mA, IRQ/FT and RST
Outputs)
Write Protection Voltage
I_OL
V_OH
V_OL1
V_OL2
V_PF
-1
2.4
4.20
Battery Switchover Voltage
V_SO
TYP
15
1
1
V_BAT
MAX
50
3
3
+1
+1
0.4
0.4
4.50
UNITS
mA
mA
mA
mA
mA
V
V
V
V
V
NOTES
2, 3
2, 3
2, 3
1
1
1, 5
1
1, 4
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