参数资料
型号: LM75BIM-5/NOPB
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: Switch/Digital Output Temperature Sensor
英文描述: DIGITAL TEMP SENSOR-SERIAL, 9BIT(s), 3Cel, RECTANGULAR, SURFACE MOUNT
封装: 0.150 INCH, SOP-8
文件页数: 14/18页
文件大小: 474K
代理商: LM75BIM-5/NOPB
Logic Electrical Characteristics
DIGITAL DC CHARACTERISTICS
Unless otherwise noted, these specifications apply for +V
S = +2.7 to 5.5 Vdc for LM75AIM, +VS = +5 Vdc for LM75BIM-5,
LM75BIMM-5, LM75CIM-5, and LM75CIMM-5; and +V
S = +3.3 Vdc for LM75BIM-3, LM75BIMM-3, LM75CIM-3, and LM75CIMM-3
(Note 6). Boldface limits apply for T
A = TJ = TMIN to TMAX; all other limits T
A = TJ = +25°C, unless otherwise noted.
Symbol
Parameter
Conditions
Typical
(Note 12)
Limits
(Note 7)
Units
(Limit)
V
IN(1)
Logical “1” Input Voltage
+V
S × 0.7
V (min)
+V
S + 0.3
V (max)
V
IN(0)
Logical “0” Input Voltage
0.3
V (min)
+V
S × 0.3
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
All Digital Inputs
5
pF
I
OH
High Level Output Current
LM75A
V
OH = 5V
1
μA (max)
LM75B
V
OH = 5V
10
μA (max)
LM75C
V
OH = 5V
100
μA (max)
V
OL
Low Level Output Voltage
I
OL = 3 mA
0.4
V (max)
t
OF
Output Fall Time
C
L = 400 pF
I
O = 3 mA
250
ns (max)
I2C DIGITAL SWITCHING CHARACTERISTICS
Unless otherwise noted, these specifications apply for +V
S = +2.7 to 5.5 Vdc for LM75AIM and VS = +5 Vdc for LM75BIM-5,
LM75BIMM-5, LM75CIM-5, and LM75CIMM-5; and +V
S = +3.3 Vdc for LM75BIM-3, LM75BIMM-3, LM75CIM-3, and
LM75CIMM-3C
L (load capacitance) on output lines = 80 pF unless otherwise specified. Boldface limits apply for TA = TJ =
T
MIN to TMAX; all other limits T
A = TJ = +25°C, unless otherwise noted.
The switching characteristics of the LM75 fully meet or exceed the published specifications of the I2C bus. The following parameters
are the timing relationships between SCL and SDA signals related to the LM75. They are not the I2C bus specifications.
Symbol
Parameter
Conditions
Typical
(Note 12)
Limits
(Note 7)
Units
(Limit)
t
1
SCL (Clock) Period
2.5
μs (min)
t
2
Data in Set-Up Time to SCL High
100
ns (min)
t
3
Data Out Stable after SCL Low
0
ns (min)
t
4
SDA Low Set-Up Time to SCL Low (Start Condition)
100
ns (min)
t
5
SDA High Hold Time after SCL High (Stop Condition)
100
ns (min)
t
TIMEOUT
SDA Time Low for Reset of Serial Interface (Note 13)
LM75A,
LM75B
75
325
ms (min)
ms (max)
LM75C
Not Applicable
5
www.national.com
LM75
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