DS1500_11 Datasheet, PDF (2/20 Pages) Maxim Integrated Products – Y2K Watchdog RTC with Nonvolatile Control

DS1500 Y2KC Watchdog RTC with Nonvolatile Control
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………………………..-0.5V to +6.0V
Operating Temperature Range (Industrial)...……………………………………………-40°C to +85°C (Note 1)
Operating Temperature Range (Commercial)…………….………………………………...……-0°C to +70°C
Storage Temperature Range………………………………………………………………….-55°C to +125°C
Lead Temperature (soldering, 10s)……….……………………….…………………………………… +300°C
Soldering Temperature (reflow)………………………………….…………………………………… +260°C
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
(T_A = Over the Operating Range.)
PARAMETER
SYMBOL CONDITIONS MIN TYP MAX UNITS
Power Supply Voltage (Note 2)
V_CC
5V (Y)
3.3V (W)
4.5
5.0
5.5
3.0
3.3
3.6
V
Logic 1 Voltage All Inputs (Note 2)
Y
V_IH
W
2.2
2.0
V_CC +
0.3
V_CC +
V
0.3
Pullup Voltage, IRQ, PWR, and RST Outputs
V_PU (Note 2)
5.5
V
Logic 0 Voltage All Inputs (Note 2)
V_IL
Y
W
-0.3
-0.3
+0.8
+0.6
V
Battery Voltage (Note 2)
Auxiliary Battery Voltage (Note 2)
V_BAT
V_BAUX
Y
W
2.5
3.0
3.7
V
2.5
3.0
5.3
2.5
3.0
3.7
V
DC ELECTRICAL CHARACTERISTICS
(V_CCMIN < V_CCI < V_CCMAX, T_A = Over the Operating Range.)
PARAMETER
SYMBOL
Active Supply Current (Note 3)
I_CC
TTL Standby Current (CS = V_IH)
I_CC1
CMOS Standby Current
(CS ≥ V_CCI - 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)
V_OH
Output Logic 0 Voltage (I_OUT = 2.1mA,
DQ0–7, CEO I_OUT = 5.0mA, IRQ,
I_OUT = 7.0mA PWR, and RST)
V_OL1
V_OL2
Battery Low, Flag Trip Point (Note 2)
V_BLF
Output Voltage (I_CCO1 = 85mA ) (Note 5)
V_CCO1
Power-Fail Voltage (Note 2)
V_PF
CONDITIONS
Y
W
Y
W
Y
W
(Note 2)
(Note 2)
(Notes 2, 4)
Y
W
Y
W
Y
W
Battery Switchover Voltage
V_SO
(Notes 2, 6)
MIN TYP
-1
-1
2.4
V_CCI -
0.3
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
UNITS
mA
mA
mA
µA
µA
V
V
V
V
V
4.50
2.97
V
V
2 of 20