Datasheet

DS2482-100: Single-Channel 1-Wire Master
3 of 22
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Standard 60 64 68
Write-0 Low Time t
W0L
Overdrive 7.1 7.5 7.9
µs
Standard 5.0 5.3 5.6
Write-0 Recovery Time t
REC0
Overdrive 2.8 3.0 3.2
µs
Standard 570 600 630
Reset Low Time t
RSTL
Overdrive 68.4 72 75.6
µs
Standard 66.5 70 73.5
Presence Detect Sample Time t
MSP
Overdrive 7.1 7.5 7.9
µs
Standard 7.6 8 8.4
Sampling for Short and
Interrupt
t
SI
Overdrive 0.7 0.75 0.8
µs
Standard 554.8 584 613.2
Reset High Time t
RSTH
Overdrive 70.3 74 77.7
µs
Presence-Pulse Mask START t
PPM1
(Note 8) 9.5 10 10.5 µs
Presence-Pulse Mask STOP t
PPM2
(Note 8) 57 60 63 µs
CONTROL PIN (PCTLZ)
Output-Low Voltage V
OLP
V
CC
= 2.9V, 1.2mA load
current
0.4 V
Output-High Voltage V
OHP
0.4mA load current
V
CC
–
0.5V
V
I²C PINS (Note 9) (See Figure 10)
V
CC
= 2.9V to 3.7V
0.25 ×
V
CC
LOW Level Input Voltage V
IL
V
CC
= 4.5V to 5.5V
-0.5
0.22 ×
V
CC
V
HIGH Level Input Voltage V
IH
0.7 ×
V
CC
V
CC
+
0.5V
V
Hysteresis of Schmitt Trigger
Inputs
V
HYS
0.05 ×
V
CC
V
LOW Level Output Voltage at
3mA Sink Current
V
OL
0.4 V
Output Fall Time from V
Ihmin
to
V
ILmax
with a Bus Capacitance
from 10pF to 400pF
t
OF
60 250 ns
Pulse Width of Spikes that are
Suppressed by the Input Filter
t
SP
SDA and SCL pins only 50 ns
Input Current Each I/O Pin with
an Input Voltage Between
0.1V
CCMAX
and 0.9V
CCMAX
I
I
(Notes 10, 11) -10 10 µA
Input Capacitance C
I
(Note 10) 10 pF
SCL Clock Frequency f
SCL
0 400 kHz
Hold Time (Repeated) START
Condition. After this Period, the
First Clock Pulse is Generated
t
HD:STA
0.6 µs
LOW Period of the SCL Clock t
LOW
1.3 µs
HIGH Period of the SCL Clock t
HIGH
0.6 µs
Setup Time for a Repeated
START Condition
t
SU:STA
0.6 µs