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參數(shù)資料
| 型號(hào)： | LM32 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Dual Thermal Diode Temperature Sensor with SensorPath Bus |
| 中文描述： | 雙熱二極管溫度傳感器SensorPath總線 |
| 文件頁(yè)數(shù)： | 5/24頁(yè) |
| 文件大?。?/td> | 340K |
| 代理商： | LM32 |
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SWD and ADD DIGITAL INPUT CHARACTERISTICS
Symbol
Parameter
Conditions
Typical
(Note 7)
Limits
(Note 8)
2.1
V+ + 0.5
0.8
-0.5
90% x V+
10% x V+
Units
(Limit)
V (min)
V (max)
V (max)
V (min)
V (min)
V (max)
mV
μA (max)
μA
V
IH
SWD Logical High Input Voltage
V
IL
SWD Logical Low Input Voltage
V
IH
V
IL
V
HYST
I
L
ADD Logical High Input Voltage
ADD Logical Low Input Voltage
Input Hysteresis
SWD and ADD Input Current
SWD Input Current with V+ Open or
Grounded
300
±
0.005
±
0.005
GND
≤
V
IN
≤
V+
GND
≤
V
IN
≤
3.6V,
and V+ Open or
GND
±
10
C
IN
Digital Input Capacitance
10
pF
SWD DIGITAL OUTPUT CHARACTERISTICS
Symbol
Parameter
Conditions
Typical
(Note 7)
Limits
(Note 8)
0.4
0.2
±
10
Units
(Limit)
V (max)
V (max)
μA (max)
pF
V
OL
Open-drain Output Logic “Low”
Voltage
I
OL
= 4mA
I
OL
= 50μA
I
OH
C
OUT
Open-drain Output Off Current
Digital Output Capacitance
±
0.005
10
AC Electrical Characteristics
The following specification apply for V+ = +3.0 V
DC
to +3.6 V
DC
, unless otherwise specified.
Boldface limits apply for
T
A
= T
J
= T
MIN
=0C to T
MAX
=85C
; all other limits T
A
= T
J
= 25C. The SensorPath Characteristics conform to the SensorPath
specification revision 0.98. Please refer to that speciation for further details.
Symbol
Parameter
Conditions
Typical
(Note 7)
Limits
(Note 8)
Units
(Limits)
HARDWARE MONITOR CHARACTERISTICS
t
CONV
Total Monitoring Cycle Time (Note 12)
All Temperature readings
(Default)
182
163.8
200.2
ms (min)
ms (max)
SensorPath Bus CHARACTERISTICS
t
f
SWD fall time (Note 15)
R
pull-up
=1.25 k
±
30%,
C
L
=400 pF
R
pull-up
=1.25 k
±
30%,
C
L
=400 pF
300
ns (max)
t
r
SWD rise time (Note 15)
1000
ns (max)
t
INACT
Minimum inactive time (bus at high level)
guaranteed by the slave before an attention
request
Master drive for Data Bit 0 write and for Data
Bit 0-1read
11
μs (min)
t
Mtr0
11.8
17.0
35.4
48.9
9.6
28.3
38.3
80
109
165
228
354
μs (min)
μs (max)
μs (min)
μs (max)
μs (max)
μs (min)
μs (max)
μs (min)
μs (max)
μs (min)
μs (max)
μs (min)
t
Mtr1
Master drive for Data Bit 1 write
t
SFEdet
t
SLout1
Time allowed for LM32 activity detection
LM32 drive for Data Bit 1 read by master
t
MtrS
Master drive for Start Bit
t
SLoutA
LM32 drive for Attention Request
t
RST
Master or LM32 drive for Reset
L
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