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DS1337 Datasheet PDF : 13 Pages
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DS1337
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground
Operating Temperature Range
Storage Temperature Range
Soldering Temperature Range
-0.3V to +6.0V
-40°C to +85°C
-55°C to +125°C
See IPC/JEDEC J-STD-020A Specification
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.
RECOMMENDED DC OPERATING CONDITIONS
(TA = -40°C to +85°C)
PARAMETER
SYMBOL CONDITIONS
MIN
TYP
MAX UNITS
Supply Voltage
VCC
1.8
4.0
V
Oscillator Voltage
VOSC
1.3
4.0
V
Logic 1
SCL, SDA
0.7 VCC
VIH
INTA, SQW/INTB
VCC + 0.3
V
5.5
Logic 0
VIL
-0.3
0.3 VCC
V
DC ELECTRICAL CHARACTERISTICS
(VCC = 1.8V to 4.0V, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
Input Leakage
I/O Leakage
Logic 0 Output (VOL = 0.4V)
Active Supply Current
Standby Current
ILI
(Note 1)
ILO
(Note 2)
IOL
(Note 2)
ICCA
(Note 3)
ICCS
(Notes 4, 5)
MIN
TYP
MAX
1
1
3
150
2
UNITS
mA
mA
mA
mA
mA
DC ELECTRICAL CHARACTERISTICS
(VCC = 1.3V to 1.8V, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
Timekeeping Current
(Oscillator Enabled)
Data Retention Current
(Oscillator Disabled)
IOSC
(Notes 4, 6, 7)
IDDR
(Note 4)
MIN
TYP
MAX UNITS
600
nA
50
nA
CRYSTAL SPECIFICATIONS*
PARAMETER
SYMBOL
MIN
TYP
MAX UNITS
Nominal Frequency
Series Resistance
Load Capacitance
FO
ESR
CL
32.768
kHz
45
kΩ
6
pF
*The crystal, traces, and crystal input pins should be isolated from RF generating signals. Refer to Application Note 58: Crystal Considerations
for Dallas Real-Time Clocks for additional specifications.
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