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| DS1347_13 Datasheet, PDF (2/17 Pages) Maxim Integrated Products – Low-Current, SPI-Compatible Real-Time Clock | |||
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DS1347
Low-Current, SPI-Compatible
Real-Time Clock
ABSOLUTE MAXIMUM RATINGS
VCC to GND ..............................................................-0.3V to +6V
All Other Pins to GND ................................-0.3V to (VCC + 0.3V)
Current into Any Pin..........................................................±20mA
Rate of Rise, VCC ............................................................100V/µs
Continuous Power Dissipation (TA = +70°C)
TDFN (derate 24.4mW/°C above +70°C)...................1.375mW
Junction Temperature .....................................................+150°C
Storage Temperature Rangeâ¦â¦â¦â¦â¦â¦â¦â¦ -55°C to +125°C
ESD Protection (All Pins, Human Body Model)................±2000V
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under âAbsolute Maximum Ratingsâ 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
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(VCC = +2.0V to +5.5V, TA = -40°C to +85°C. Typical values are at VCC = +3.3V, TA = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP MAX UNITS
Operating Voltage
Range
VCC
2
5.5
V
Active Supply Current
(Note 2)
ICC
VCC = +2V
VCC = +5V
Timekeeping Supply
Current (Note 3)
VCC = +2V
ITK
VCC = +3.6V
VCC = +5V
SPI DIGITAL INPUTS (SCLK, DIN, CS)
Input High Voltage
VIH
Input Low Voltage
VIL
Input Leakage Current
IIL
Input Capacitance
CIN
SPI DIGITAL OUTPUT (DOUT)
VCC = +2V
VCC = +5V
VCC = +2V
VCC = +5V
VIN = 0 to VCC
(Note 4)
Output Leakage Current
Output Capacitance
Output Low Voltage
IO
COUT
VOL
CS = VIH
(Note 4)
VCC = +2V, ISINK = 1.5mA
VCC = +5V, ISINK = 4mA
Output High Voltage
VOH
VCC = +2V, ISOURCE = -0.4mA
VCC = +5V, ISOURCE = -1mA
0.1
mA
0.25
0.35
0.7
0.35
0.7
μA
0.4
0.8
1.4
V
2.2
0.6
V
0.8
-0.1
+0.1
μA
10
pF
-0.1
+0.1
μA
15
pF
0.4
V
0.4
1.8
V
4.5
2
Maxim Integrated
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