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LM32 Fiches technique(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce LM32
Description  Dual Thermal Diode Temperature Sensor with SensorPath Bus
Download  24 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM32 Fiches technique(HTML) 5 Page - National Semiconductor (TI)

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SWD and ADD DIGITAL INPUT CHARACTERISTICS
Symbol
Parameter
Conditions
Typical
(Note 7)
Limits
(Note 8)
Units
(Limit)
V
IH
SWD Logical High Input Voltage
2.1
V (min)
V+ + 0.5
V (max)
V
IL
SWD Logical Low Input Voltage
0.8
V (max)
-0.5
V (min)
V
IH
ADD Logical High Input Voltage
90%xV+
V (min)
V
IL
ADD Logical Low Input Voltage
10%xV+
V (max)
V
HYST
Input Hysteresis
300
mV
I
L
SWD and ADD Input Current
GND
≤ V
IN
≤ V+
±0.005
±10
µA (max)
SWD Input Current with V+ Open or
Grounded
GND
≤ V
IN
≤ 3.6V,
and V+ Open or
GND
±0.005
µA
C
IN
Digital Input Capacitance
10
pF
SWD DIGITAL OUTPUT CHARACTERISTICS
Symbol
Parameter
Conditions
Typical
(Note 7)
Limits
(Note 8)
Units
(Limit)
V
OL
Open-drain Output Logic “Low”
Voltage
I
OL = 4mA
0.4
V (max)
I
OL = 50µA
0.2
V (max)
I
OH
Open-drain Output Off Current
±0.005
±10
µA (max)
C
OUT
Digital Output Capacitance
10
pF
AC Electrical Characteristics
The following specification apply for V+ = +3.0 V
DC to +3.6 VDC, unless otherwise specified. Boldface limits apply for
T
A =TJ =TMIN=0˚C to TMAX=85˚C; all other limits TA =TJ = 25˚C. 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
ms (min)
200.2
ms (max)
SensorPath Bus CHARACTERISTICS
t
f
SWD fall time (Note 15)
R
pull-up=1.25 k
±30%,
C
L=400 pF
300
ns (max)
t
r
SWD rise time (Note 15)
R
pull-up=1.25 k
±30%,
C
L=400 pF
1000
ns (max)
t
INACT
Minimum inactive time (bus at high level)
guaranteed by the slave before an attention
request
11
µs (min)
t
Mtr0
Master drive for Data Bit 0 write and for Data
Bit 0-1read
11.8
µs (min)
17.0
µs (max)
t
Mtr1
Master drive for Data Bit 1 write
35.4
µs (min)
48.9
µs (max)
t
SFEdet
Time allowed for LM32 activity detection
9.6
µs (max)
t
SLout1
LM32 drive for Data Bit 1 read by master
28.3
µs (min)
38.3
µs (max)
t
MtrS
Master drive for Start Bit
80
µs (min)
109
µs (max)
t
SLoutA
LM32 drive for Attention Request
165
µs (min)
228
µs (max)
t
RST
Master or LM32 drive for Reset
354
µs (min)
www.national.com
5


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