Digital Thermometer and Thermostat
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(1.7V d V
DD
d 3.7V, T
A
= -55癈 to +125癈, unless otherwise noted.)
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.
Voltage Range on VDD Relative to Ground ..........-0.3V to +4.0V
Voltage Range on Any Other Pin
Relative to Ground.............................................-0.3V to +6.0V
Operating Temperature Range .........................-55癈 to +125癈
Storage Temperature Range.............................-55癈 to +125癈
Soldering Temperature...........................Refer to the IPC/JEDEC
J-STD-020 Specification.
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
Supply Voltage
V
DD
1.7
3.7
V
Input Voltage Range (SDA, SCL,
O.S., A0, A1, A2)
(Note 1)
-0.3
+5.5
V
0癈 to +70癈
?0.5
Thermometer Error
(Note 2, 3)
T
ERR
-55癈 to +125癈
?2.0
癈
Input Logic-High
V
IH
(Note 1)
0.7 ?V
DD
V
Input Logic-Low
V
IL
(Note 1)
0.3 ?V
DD
V
SDA Output Logic-Low Voltage
V
OL1
6mA sink current (Note 1)
0
0.6
V
O.S. Saturation Voltage
V
OL2
4mA sink current (Notes 1, 2)
0.8
V
Input Current Each I/O pin
0.4V < V
I/O
< 0.9 x V
DD
-10
+10
糀
I/O Capacitance
C
I/O
10
pF
Standby Current
I
DD1
(Notes 4, 5, 6)
2
糀
Active temp conversions
750
Communication only
100
Active Current
(Notes 4, 5, 6)
I
DD
E
2
Copy only
500
糀
AC ELECTRICAL CHARACTERISTICS
(1.7V d V
DD
d 3.7V, T
A
= -55癈 to +125癈, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Resolution
9
12
Bits
9-bit conversions
25
10-bit conversions
50
11-bit conversions
100
Temperature Conversion Time
t
CONVT
12-bit conversions
200
ms
SCL Frequency
f
SCL
400
kHz
EEPROM Copy Time
t
WR
-40癈 to +85癈
10
ms
-40癈 T
A
+85癈 (Note 7)
10k
20k
EEPROM Copy Endurance
N
EEWR
T
A
= +25癈 (Note 7)
40k
80k
Cycles
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