Max6902 spi-compatible rtc in a tdfn – Rainbow Electronics MAX6902 User Manual
Page 2
MAX6902
SPI-Compatible RTC in a TDFN
2
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ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +2.0V to +5.5V, T
A
= -40
°C to +85°C. Typical values are at V
CC
= +3.3V, T
A
= +25
°C, unless otherwise noted.) (Note 1)
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.
V
CC
to GND ..............................................................-0.3V to +6V
All Other Pins to GND ................................-0.3V to (V
CC
+ 0.3V)
Current into Any Pin..........................................................±20mA
Rate of Rise, V
CC
............................................................100V/µs
Continuous Power Dissipation (T
A
= +70
°C)
8-Pin TDFN (derate 24.4mW/
°C above +70°C) ..........1951.0mW
Junction Temperature .....................................................+150
°C
Storage Temperature Range…………………… -65
°C to +150°C
ESD Protection (all pins, Human Body Model) ..................2000V
Lead Temperature (soldering, 10s) .................................+300
°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Voltage
Range
V
CC
2
5.5
V
V
CC
= +2V
0.3
Active Supply
Current (Note 2)
I
CC
V
CC
= +5V
1.1
mA
V
CC
= +2V
0.4
0.8
Timekeeping Supply
Current (Note 3)
I
TK
V
CC
= +5V
1.3
2.2
µA
SPI DIGITAL INPUTS (SCLK, DIN,
CS)
V
CC
= +2V
1.4
Input High Voltage
V
IH
V
CC
= +5V
2.2
V
V
CC
= +2V
0.6
Input Low Voltage
V
IL
V
CC
= +5V
0.8
V
Input Leakage
I
IL
V
IN
= 0 to V
CC
-10
10
nA
Input Capacitance
10
pF
SPI DIGITAL OUTPUTS (DOUT)
Output Capacitance
15
pF
V
CC
= +2.0V, I
SINK
= 1.5mA
0.4
Output Low Voltage
V
OL
V
CC
= +5.0V, I
SINK
= 4mA
0.4
V
V
CC
= +2.0V, I
SOURCE
= -0.4mA
1.8
Output High Voltage
V
OH
V
CC
= +5.0V, I
SOURCE
= -1mA
4.5
V