Rainbow Electronics LM32 - Manual (Page 5)

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% x V+ V (min)
V
IL
ADD Logical Low Input Voltage 10% x V+ 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 V
DC
, unless otherwise specified. Boldface limits apply for
T
A
= T
J
= T
MIN
=0˚C to T
MAX
=85˚C; all other limits T
A
= T
J
= 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 Ω ± 30%,
C
L
=400 pF
300 ns (max)
t
r
SWD rise time (Note 15) R
pull-up
=1.25 k Ω ± 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)
LM32
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