DS1347 Maxim, DS1347 Datasheet - Page 2

• Manufacturer Part Number: DS1347
• Description: The DS1347 SPI-compatible real-time clock (RTC) contains a real-time clock/calendar and 31 x 8 bits of static random-access memory (SRAM)
• Manufacturer: Maxim

ABSOLUTE MAXIMUM RATINGS
V
All Other Pins to GND ................................-0.3V to (V
Current into Any Pin..........................................................±20mA
Rate of Rise, V
Continuous Power Dissipation (T
Low-Current, SPI-Compatible Real-Time Clock
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
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V
2
Operating Voltage
Range
Active Supply Current
(Note 2)
Timekeeping Supply
Current (Note 3)
SPI DIGITAL INPUTS (SCLK, DIN,
Input High Voltage
Input Low Voltage
Input Leakage Current
Input Capacitance
SPI DIGITAL OUTPUT (DOUT)
Output Leakage Current
Output Capacitance
Output Low Voltage
Output High Voltage
CC
TDFN (derate 24.4mW/°C above +70°C)...................1.375mW
CC
_______________________________________________________________________________________
to GND ..............................................................-0.3V to +6V
= +2.0V to +5.5V, T
PARAMETER
CC
............................................................100V/µs
A
= -40°C to +85°C. Typical values are at V
SYMBOL
C
V
V
V
C
I
V
I
V
A
I
CC
I
OUT
TK
CC
OH
IL
OL
O
IH
IN
IL
= +70°C)
)
V
V
V
V
V
V
V
V
V
V
(Note 4)
(Note 4)
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
CC
IN
= V
= 0 to V
= +2V
= +5V
= +2V
= +3.6V
= +5V
= +2V
= +5V
= +2V
= +5V
= +2V, I
= +5V, I
= +2V, I
= +5V, I
IH
CC
CC
SINK
SINK
SOURCE
SOURCE
+ 0.3V)
CONDITIONS
= 1.5mA
= 4mA
= -0.4mA
= -1mA
CC
Junction Temperature .....................................................+150°C
Storage Temperature Range…………………… -55°C to +125°C
ESD Protection (All Pins, Human Body Model)................±2000V
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
= +3.3V, T
A
= +25°C, unless otherwise noted.) (Note 1)
MIN
-0.1
-0.1
1.4
2.2
1.8
4.5
2
TYP
0.35
0.35
0.4
10
15
MAX
+0.1
+0.1
0.25
5.5
0.1
0.7
0.7
0.8
0.6
0.8
0.4
0.4
UNITS
mA
µA
µA
pF
µA
pF
V
V
V
V
V