![](http://datasheet.mmic.net.cn/Maxim-Integrated-Products/DS2483Q-T_datasheet_97048/DS2483Q-T_2.png)
2
Maxim Integrated
DS2483
Single-Channel 1-Wire Master
with Adjustable Timing and Sleep Mode
Voltage Range on Any Pin Relative to Ground.......-0.5V to +6V
Maximum Current into Any Pin...........................................20mA
Continuous Power Dissipation (TA = +70NC)
SOT23 (derate 8.7mW/NC above +70NC).................695.7mW
TDFN (derate 16.7mW/NC above +70NC)...............1333.3mW
Operating Temperature Range.......................... -40NC to +85NC
Junction Temperature .....................................................+150NC
Storage Temperature Range............................ -55NC to +125NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(TA = -40NC to +85NC, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
VCC
2.97
5.25
V
I2C Voltage (Note 2)
VCI2C
1.8V
1.71
1.8
1.89
V
3.3V
2.97
3.3
3.63
5V
4.5
5.0
5.25
Supply Current
ICC
No communication, VCC = full range
300
F
A
Sleep mode, VCC = 5.25V
4
Sleep mode, VCC = 3.6V
3.0
Power-On-Reset Trip Point
VPOR
VCC = full range
1.0
1.5
V
IO PIN: GENERAL DATA
1-Wire Input High Voltage
VIH1
VCC = full range
0.6 O
VCC
V
1-Wire Input Low Voltage
VIL1
VCC = full range
0.2 O
VCC
V
1-Wire Weak Pullup Resistor
RWPU
Low range
375
500
815
I
High range
700
1000
1375
1-Wire Output Low Voltage
VOL1
IOL = 8mA sink current
0.2
V
Active Pullup On-Threshold
VIAPO
VCC = full range
0.6
0.95
1.2
V
Active Pullup On-Time (Note 3)
tAPU
1-Wire time slot
See APU bit description
F
s
1-Wire reset standard speed
2.375
2.5
2.625
1-Wire reset overdrive speed
0.475
0.5
0.525
Active Pullup Impedance
RAPU
VCC = 3.0V, 4mA load
60
I
VCC = 4.5V, 4mA load
40
1-Wire Output Fall Time (Note 4)
tF1
Standard, 10pF < CLOAD < 400pF
0.25
1
F
s
Overdrive, 10pF < CLOAD < 400pF
0.05
0.2
IO PIN: 1-Wire TIMING (Note 5)
Reset Low Time
tRSTL
Standard
-5%
See
Table 7
+5%
F
s
Overdrive
Reset High Time
tRSTH
Standard and overdrive
Equal to tRSTL
F
s