LM80 National Semiconductor, LM80 Datasheet - Page 6

• Manufacturer Part Number: LM80
• Description: Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
• Manufacturer: National Semiconductor

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Symbol
BTI Digital Input
I
I
C
IN(1)
IN(0)
SERIAL BUS TIMING CHARACTERISTICS
t
t
t
t
t
1
2
3
4
5
The following specifications apply for +2.8 V
IN0-IN6 R
25˚C.(Note 7)
DC Electrical Characteristics
IN
AC Electrical Characteristics
The following specifications apply for +2.8 V
LM80CIMT-5, unless otherwise specified. Boldface limits apply for T
(Note 13)
Symbol
Logical “1” Input Current
Logical “0” Input Current
Digital Input Capacitance
S
= 25 , unless otherwise specified. Boldface limits apply for T
SCL (Clock) Period
Data In Setup Time to SCL High
Data Out Stable After SCL Low
SDA Low Setup Time to SCL Low (start)
SDA High Hold Time After SCL High (stop)
Parameter
Parameter
FIGURE 1. Serial Bus Timing Diagram
DC
DC
V
V
(Continued)
+
+
+3.8 V
+3.8 V
V
V
IN
IN
DC
DC
= V
= 0 V
6
for LM80CIMT-3, +4.25 V
for LM80CIMT-3, +4.25 V
+
Conditions
DC
Conditions
A
= T
A
J
= T
= T
J
MIN
= T
to T
MIN
(Note 8)
Typical
DC
DC
MAX
to T
(Note 8)
Typical
V
; all other limits T
V
MAX
500
+
−1
20
+
; all other limits T
+5.75 V
+5.75 V
(Note 9)
Limits
100
100
100
(Note 9)
2.5
Limits
0
DS100040-4
DC
2000
DC
−10
for LM80CIMT-5,
for
A
= T
A
J
= T
= 25˚C.
(Limits)
µs (min)
ns (min)
ns (min)
ns (min)
ns (min)
µA (max)
µA (min)
(Limits)
Units
Units
J
pF
=