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LM77 Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM77
Description  9-Bit Sign Digital Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM77 Datasheet(HTML) 4 Page - National Semiconductor (TI)

 
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Absolute Maximum Ratings (Note 1)
Supply Voltage
−0.3V to 6.5V
Voltage at any Pin
−0.3V to (+V
S + 0.3V )
Input Current at any Pin
5 mA
Package Input Current (Note 2)
20 mA
T_CRIT_A and INT Output Sink
Current
10 mA
T_CRIT_A and INT Output
Voltage
6.5V
Storage Temperature
−65˚C to +125˚C
Soldering Information, Lead
Temperature
SOP and MSOP Package (Note 3)
Vapor Phase (60 seconds)
215˚C
Infrared (15 seconds)
220˚C
ESD Susceptibility (Note 4)
Human Body Model
2500V
Machine Model
250V
Operating Ratings (Notes 1, 5)
Specified Temperature Range
T
MIN to TMAX
(Note 6)
−55˚C to +125˚C
Supply Voltage Range (+V
S)(Note 7)
+3.0V to +5.5V
Temperature-to-Digital Converter Characteristics
Unless otherwise noted, these specifications apply for +V
S=+5 Vdc ±10% for LM77CIM-5, LM77CIMM-5 and +VS=+3.3 Vdc
±10% for LM77CIM-3, LM77CIMM-3 (Note 7). Boldface limits apply for T
A =TJ =TMIN to TMAX; all other limits TA=
T
J=+25˚C, unless otherwise noted.
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limit)
Accuracy
T
A = −10˚C to +65˚C
±1.5
˚C (max)
T
A = −25˚C to +100˚C
±2.0
T
A = −55˚C to +125˚C
±3.0
Resolution
(Note 10)
10
0.5
Bits
˚C
Temperature Conversion Time
(Note 11)
70
125
ms
Quiescent Current
I
2C Inactive
0.25
mA
I
2C Active
0.25
0.5
mA (max)
Shutdown Mode
5
10
µA
T
HYST Default Temperature
(Notes 13, 14)
2
˚C
T
LOW Default Temperature
(Note 14)
10
˚C
T
HIGH Default Temperature
(Note 14)
64
˚C
T
C Default Temperature
(Note 14)
80
˚C
Logic Electrical Characteristics
DIGITAL DC CHARACTERISTICS Unless otherwise noted, these specifications apply for +V
S=+5 Vdc ±10% for LM77CIM-5,
LM77CIMM-5 and +V
S=+3.3 Vdc ±10% for LM77CIM-3, LM77CIMM-3. Boldface limits apply for TA =TJ =TMIN to TMAX; all
other limits T
A=TJ=+25˚C, unless otherwise noted.
Symbol
Parameter
Conditions
Typical
(Note 8)
Limits
(Note 9)
Units
(Limit)
V
IN(1)
SDA and SCL Logical “1” Input
Voltage
+V
S x 0.7
V (min)
+V
S+0.3
V (max)
V
IN(0)
SDA and SCL Logical “0” Input
Voltage
−0.3
V (min)
+V
S x 0.3
V (max)
V
IN(1)
A0 and A1 Logical “1” Input
Voltage
2.0
V (min)
+V
S+0.3
V (max)
V
IN(0)
A0 and A1 Logical “0” Input
Voltage
−0.3
V (min)
0.8
V (max)
I
IN(1)
Logical “1” Input Current
V
IN =+ VS
0.005
1.0
µA (max)
I
IN(0)
Logical “0” Input Current
V
IN = 0V
−0.005
−1.0
µA (max)
C
IN
Capacitance of All Digital Inputs
20
pF
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