DS1501_09 Datasheet, PDF (2/22 Pages) Maxim Integrated Products – Y2K-Compliant Watchdog Real-Time Clocks

DS1501/DS1511 Y2KC Watchdog Real-Time Clocks
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………………..……....-0.5V to +6.0V
Operating Temperature Range, DS1501………………………………………………..-40°C to +85°C (Note 1)
Operating Temperature Range, DS1511……………………………………………………………….……..0°C to +70°C
Storage Temperature Range, DS1501…………………...…………………………………....-55°C to +125°C
Storage Temperature Range, DS1511………………………………………………………………….…..-40°C to +70°C
Soldering Temperature (DIP, EDIP Module)…..………...….+260°C lead temperature for 10 seconds (max) (Note 2)
Soldering Temperature (SO, TSOP)…….………….…..See IPC/JEDEC J-STD-020 for surface-mount devices
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED DC OPERATING CONDITIONS
(V_CC = 3.3V or 5V ±10%, T_A = 0°C to +70°C; V_CC = 3.3V or 5V ±10%, T_A = -40°C to +85°C.)
PARAMETER
SYMBOL CONDITIONS
MIN
TYP
Power Supply Voltage (Note 3)
V_CC
5V (Y)
3.3V (W)
4.5
5.0
3.0
3.3
Logic 1 Voltage All Inputs (Note 3)
V_IH
Y
W
2.2
2.0
Pullup Voltage, IRQ, PWR, and
RST Outputs (Note 3)
V_PU
Logic 0 Voltage All Inputs (Note 3)
V_IL
Y
W
-0.3
-0.3
Battery Voltage (Note 3)
V_BAT
2.5
3.0
Auxiliary Battery Voltage (Note 3)
V_BAUX
Y
W
2.5
3.0
2.5
3.0
MAX
5.5
3.6
V_CC + 0.3
V_CC + 0.3
5.5
UNITS
V
V
V
+0.8
+0.6
V
3.7
V
5.3
3.7
V
DC ELECTRICAL CHARACTERISTICS
(V_CC = 3.3V or 5V ±10%, T_A = 0°C to +70°C; V_CC = 3.3V or 5V ±10%, T_A = -40°C to +85°C.)
PARAMETER
SYMBOL CONDITIONS MIN
TYP
Active Supply Current (Note 4)
I_CC
Y
W
TTL Standby Current (CE = V_IH)
I_CC1
Y
W
CMOS Standby Current
(CE = V_CC - 0.2V)
I_CC2
Y
W
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; I_OUT = 5.0mA, IRQ, I_OUT =
7.0mA, PWR and RST)
Battery Low, Flag Trip Point (Note 2)
Power-Fail Voltage (Note 2)
Battery Switchover Voltage (Notes 3, 6)
Battery Leakage Current
I_OL
V_OH
V_OL1
V_OL2
V_BLF
V_PF
V_SO
I_LKG
(Note 3)
(Note 3)
(Notes 3, 5)
Y
W
Y
W
-1
2.4
4.20
2.75
2.0
1.9
V_BAT,
V_BAUX,
or V_PF
MAX
15
10
5
4
5
4
+1
+1
0.4
0.4
4.50
2.97
100
UNITS
mA
mA
mA
μA
μA
V
V
V
V
V
V
nA
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