DS1553 Datasheet, PDF (11/20 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……………………………………………..-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.) (Note 8)
Soldering Temperature (reflow)……………………………………..................................................+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
TEMP RANGE
0°C to +70°C
V_CC
3.3V 10% or 5V 10%
RECOMMENDED DC OPERATING CONDITIONS
(T_A = Over the operating range.)
PARAMETER
SYMBOL MIN TYP
Logic 1 Voltage ^{VCC = 5V ±10%}
V_IH
2.2
All Inputs
V_CC = 3.3V ±10%
V_IH
2.0
Logic 0 Voltage ^{VCC = 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
NOTES
1
1
1
1
DC ELECTRICAL CHARACTERISTICS
(V_CC = 5.0V ±10%, T_A = Over the operating range.)
PARAMETER
SYMBOL
Active Supply Current
I_CC
TTL Standby Current (CE = V_IH)
I_CC1
CMOS Standby Current
(CE  V_CC - 0.2V)
I_CC2
Input Leakage Current (Any Input)
I_IL
Output Leakage Current (Any Output)
I_OL
Output Logic 1 Voltage
(I_OUT = -1.0mA)
Output Logic 0
I_OUT = 2.1mA, DQ0-7
Outputs
Voltage
I_OUT = 7.0mA, IRQ/FT
and RST Outputs
V_OH
V_OL1
V_OL2
Write Protection Voltage
V_PF
Battery Switchover Voltage
V_SO
MIN
-1
-1
2.4
4.20
TYP
15
1
MAX
50
3
UNITS
mA
mA
1
3
mA
+1
A
+1
A
V
0.4
V
0.4
V
4.50
V
V_BAT
V
NOTES
2, 3
2, 3
2, 3
1
1
1, 5
1
1, 4
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