Datasheet
Maxim Integrated | 2www.maximintegrated.com
DS2482-100
Single-Channel 1-Wire Master
Absolute Maximum Ratings
Electrical Characteristics
(V
CC
= 2.9V to 5.5V, T
A
= -40°C to +85°C.)
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
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage Range on Any Pin Relative to Ground.........-0.5V to +6V
Maximum Current into Any Pin .........................................±20mA
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-55°C to +125°C
Lead Temperature (SO only; soldering, 10s)...................+300°C
Soldering Temperature (reflow)
SO, WLP.......................................................................+260°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
3.3V 2.9 3.3 3.7
Supply Voltage V
CC
5V 4.5 5.0 5.5
V
Operating Current I
CC
(Note 1) 0.75 mA
3.3V 1.9
1-Wire Input High (Notes 2, 3) V
IH1
5V 3.4
V
3.3V 0.9
1-Wire Input Low (Notes 2, 3) V
IL1
5V 1.2
V
1-Wire Weak Pullup Resistor R
WPU
(Note 4) 1000 1675
1-Wire Output Low V
OL1
At 4mA load 0.4 V
Standard 2.3 2.5 2.7
Active Pullup On Time
(Notes 4, 5)
t
APUOT
Overdrive 0.4 0.5 0.6
μs
V
CC
3.2V, 1.5mA load 0.3
Strong Pullup Voltage Drop V
STRPU
V
CC
5.2V, 3mA load 0.5
V
Standard (3.3V ±10%) 1 4.2
Overdrive (3.3V ±10%) 5 22.1
Standard (5.0V ±10%) 2 6.5
Pulldown Slew Rate (Note 6) PD
SRC
Overdrive (5.0V ±10%) 10 40
V/μs
Standard (3.3V ±10%) 0.8 4
Overdrive (3.3V ±10%) 2.7 20
Standard (5.0V ±10%) 1.3 6
Pullup Slew Rate (Note 6) PU
SRC
Overdrive (5.0V ±10%) 3.4 31
V/μs
Power-On Reset Trip Point V
POR
2.2 V
1-Wire TIMING (Note 5) (See Figures 4, 5, and 6)
Standard 7.6 8 8.4
Write-One/Read Low Time t
W1L
Overdrive 0.9 1 1.1
μs
Standard 13.3 14 15
Read Sample Time t
MSR
Overdrive 1.4 1.5 1.8
μs
Standard 65.8 69.3 72.8
1-Wire Time Slot t
SLOT
Overdrive 9.9 10.5 11.0
μs