
DS2482-800: Eight-Channel 1-Wire Master
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ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground
Maximum Current Into Any Pin
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Soldering Temperature
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device.
ELECTRICAL CHARACTERISTICS
(V
CC
= 2.9V to 5.5V, T
A
= -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
3.3V
Supply Voltage
V
CC
5V
Operating Current
I
CC
(Note 1)
3.3V (Notes 2, 3)
1-Wire Input High
V
IH1
5V (Notes 2, 3)
3.3V (Notes 2, 3)
1-Wire Input Low
V
IL1
5V (Notes 2, 3)
-0.5V, +6V
20mA
-40°C to +85°C
+150°C
-55°C to +125°C
See IPC/JEDEC J-STD-020A
MIN
2.9
4.5
1.9
3.4
TYP
3.3
5.0
MAX
3.7
5.5
0.75
0.75
1.0
UNITS
V
mA
V
V
1-Wire Weak Pullup Resistor
1-Wire Output Low
R
WPU
V
OL1
(Note 4)
At 4mA load
Standard (Notes 4, 5)
Overdrive (Notes 4, 5)
800
2.3
0.4
1675
0.4
2.7
0.6
V
2.5
0.5
Active Pullup On Time
t
APUOT
μs
V
CC
3.2V, 1.5mA load
0.3
Strong Pullup Voltage Drop
V
STRPU
V
CC
5.2V, 3mA load
Standard (3.3V 5%)
Overdrive (3.3V 5%)
Standard (5.0V 5%)
Overdrive (5.0V 5%)
Standard (3.3V 5%)
Overdrive (3.3V 5%)
Standard (5.0V 5%)
Overdrive (5.0V 5%)
0.5
4.2
22.1
6.5
40
4
6
20
31
2.2
V
1
5
2
10
0.8
1.3
2.7
3.4
3.3V Pulldown Slew Rate
(Note 6)
5V Pulldown Slew Rate
(Note 6)
PD
SRC
V/μs
PD
SRC
V/μs
3.3V Pullup Slew Rate (Note 6)
PU
SRC
V/μs
5V Pullup Slew Rate (Note 6)
PU
SRC
V/μs
Power-On Reset Trip Point
V
POR
V
1-Wire TIMING (Note 16) See Figures 3, 5, 6, and 7
Standard
Overdrive
Standard
Overdrive
Standard
Overdrive
3.3V to 0V (Note 5)
5.5V to 0V (Note 5)
3.3V to 0V (Note 5)
5.5V to 0V (Note 5)
7.6
0.9
13.3
1.4
65.8
9.9
0.6
0.7
0.1
0.1
8
1
14
1.5
69.3
10.5
8.4
1.1
15
1.8
72.8
11.0
2.6
2.2
0.5
0.4
Write 1/Read Low Time
t
W1L
μs
Read Sample Time
t
MSR
μs
1-Wire Time Slot
t
slot
μs
Fall Time High-to-Low at
Standard Speed (Note 6)
Fall Time High-to-Low at
Overdrive Speed (Note 6)
t
F1
μs