DS2482S-800(2009) 查看數據表（PDF） - Maxim Integrated
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DS2482S-800 Datasheet PDF : 23 Pages
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DS2482-800: Eight-Channel 1-Wire Master
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
-0.5V, +6V
20mA
-40°C to +85°C
+150°C
-55°C to +125°C
See IPC/JEDEC J-STD-020A
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
(VCC = 2.9V to 5.5V, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage
Operating Current
1-Wire Input High
1-Wire Input Low
VCC
3.3V
5V
ICC
(Note 1)
VIH1
3.3V (Notes 2, 3)
5V (Notes 2, 3)
VIL1
3.3V (Notes 2, 3)
5V (Notes 2, 3)
1-Wire Weak Pullup Resistor
1-Wire Output Low
Active Pullup On Time
RWPU
VOL1
tAPUOT
(Note 4)
At 4mA load
Standard (Notes 4, 16)
Overdrive (Notes 4, 16)
Strong Pullup Voltage Drop
3.3V Pulldown Slew Rate
(Note 6)
5V Pulldown Slew Rate
(Note 6)
3.3V Pullup Slew Rate (Note 6)
5V Pullup Slew Rate (Note 6)
Power-On Reset Trip Point
VSTRPU
PDSRC
PDSRC
PUSRC
PUSRC
VPOR
VCC 3.2V, 1.5mA load
VCC 5.2 V, 3mA load
Standard (3.3V 10%)
Overdrive (3.3V 10%)
Standard (5.0V 10%)
Overdrive (5.0V 10%)
Standard (3.3V 10%)
Overdrive (3.3V 10%)
Standard (5.0V 10%)
Overdrive (5.0V 10%)
1-Wire TIMING (Note 15) See Figures 4, 5, and 6
Write 1/Read Low Time
tW1L
Standard
Overdrive
Read Sample Time
tMSR
Standard
Overdrive
1-Wire Time Slot
tslot
Standard
Overdrive
Fall Time High-to-Low at
Standard Speed (Note 6)
Fall Time High-to-Low at
Overdrive Speed (Note 6)
3.3V to 0V (Note 5)
tF1
5.0V to 0V (Note 5)
3.3V to 0V (Note 5)
5.0V to 0V (Note 5)
MIN TYP MAX UNITS
2.9
3.3
3.7
4.5
5.0
5.5
V
0.75
mA
1.9
3.4
V
0.75
1.0
V
800
1675
0.4
V
2.3
2.5
2.7
0.4
0.5
0.6
µs
0.3
V
0.5
1
5
4.2
22.1
V/µs
2
10
6.5
40
V/µs
0.8
2.7
4
20
V/µs
1.3
3.4
6
31
V/µs
2.2
V
7.6
8
0.9
1
8.4
1.1
µs
13.3
14
15
µs
1.4
1.5
1.8
65.8 69.3
72.8
µs
9.9
10.5
11.0
0.54
3.0
0.55
0.10
2.2
0.59
µs
0.09
0.44
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