DS2413P MAXIM [Maxim Integrated Products], DS2413P Datasheet - Page 3

• Manufacturer Part Number: DS2413P
• Description: 1-Wire Dual Channel Addressable Switch
• Manufacturer: MAXIM [Maxim Integrated Products]

Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
Note 11:
Note 12:
Note 13:
Note 14:
Note 15:
Note 16:
Note 17:
Note 18:
Note 19:
Note 20:
Note 21:
Presence Detect Sample
Time (Notes 1, 20)
IO PIN, 1-Wire WRITE
Write-0 Low Time (Note 1)
Write-1 Low Time
(Notes 1, 17)
IO PIN, 1-Wire READ
Read Low Time
(Notes 1, 18)
Read Sample Time
(Notes 1, 18)
PIO Pins
Leakage Current
Input Capacitance
Output low voltage
Input Low Voltage
Input High Voltage
(Note 21)
t
t
t
t
t
W0L
SLOT
RSTL
PDH
PDL
PARAMETER
(incl. t
PARAMETER
System requirement.
Full R
Maximum allowable pullup resistance is a function of the number of 1-Wire devices in the system and 1-Wire recovery times. The
specified value here applies to systems with only one device and with the minimum 1-Wire recovery times. For more heavily
loaded systems, an active pullup such as that found in the DS2482-x00, DS2480B, or DS2490 may be required.
The I-V characteristic is linear for voltages greater than 10V.
Capacitance on the data pin could be 800pF when V
after V
Guaranteed by design and simulation. Not production tested.
The voltage on IO needs to be less than or equal to V
V
Voltage below which, during a falling edge on IO, a logic 0 is detected.
Voltage above which, during a rising edge on IO, a logic 1 is detected.
After V
The I-V characteristic is linear for voltages less than 1V.
Applies to a single DS2413 attached to a 1-Wire line.
The earliest recognition of a negative edge is possible at t
Highlighted numbers are NOT in compliance with legacy 1-Wire product standards. See comparison table below.
t
pulse. t
Interval during the negative edge on IO at the beginning of a Presence Detect pulse between the time at which the voltage is
80% of V
e represents the time required for the pullup circuitry to pull the voltage on IO up from V
d represents the time required for the pullup circuitry to pull the voltage on IO up from V
master.
The I-V characteristic is linear for voltages greater than 7V.
t
t
Production tested for V
PDH
MSP
PDH
REC
TL
and V
is deemed to have ended when the voltage on IO drops below 80% of V
and t
is a system required sample point and not directly production tested. Production testing is performed on related parameters
)
PUP
PUP
TH
PDL
PUP
PDL
range guaranteed by design and simulation. not production tested. Production testing performed at a fixed R
is crossed during a rising edge on IO, the voltage on IO has to drop by at least V
TH
has been applied the parasite capacitance will not affect normal communications.
is deemed to have begun when the voltage on IO drops below 20% of V
. Parameter t
are functions of the internal supply voltage, which is a function of V
and the time at which the voltage is 20% of V
STANDARD SPEED
480µs
61µs
15µs
60µs
60µs
MIN
SYMBOL
IHP(min)
FPD
V
t
t
t
t
V
V
MSR
C
MSP
W0L
W1L
t
I
RL
OLP
LP
IHP
ILP
P
is guaranteed by design and simulation, not production tested.
. V
(undef.)
(undef.)
240µs
120µs
LEGACY VALUES
IHP(max)
MAX
60µs
Standard speed, V
Standard speed
Overdrive speed, V
Overdrive speed
Standard speed, V
Standard speed (Note 14)
Overdrive speed, V
(Note 14)
Overdrive speed (Note 14)
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Pin at 28V (Note 19)
(Note 5)
20mA load current
(Note 1)
(Note 1)
is guaranteed by design and simulation, not production tested.
OVERDRIVE SPEED
48µs
MIN
7µs
2µs
8µs
6µs
CONDITIONS
PUP
ILMAX
3 of 17
is first applied. If a 2.2kW resistor is used to pull up the data line, 2.5µs
REH
whenever the master drives the line low.
PUP
PUP
PUP
PUP
PUP
(undef.)
MAX
80µs
24µs
16µs
after V
.
6µs
> 4.5V
> 4.5V
³ 4.5V
³ 4.5V
TH
has been previously reached.
STANDARD SPEED
600µs
67µs
15µs
60µs
62µs
PUP
MIN
PUP
on the leading edge of the presence-detect low
and the 1-Wire Recovery Times.
PUP
V
t
t
RL
RL
0.3V
67.4
69.6
MIN
on the leading edge of the pulse.
PUP
7.7
9.1
8.5
60
62
IL
IL
7
8
5
1
5
1
+ d
+ d
to V
to the input high threshold of the bus
(undef.)
HY
960µs
260µs
120µs
–
DS2413 VALUES
MAX
68µs
to be detected as logic '0'.
TH
.
TYP
100
OVERDRIVE SPEED
10µs
63µs
MIN
2µs
8µs
8µs
15 - d
15 - e
MAX
2 - e
2 - d
120
120
0.4
0.8
75
10
10
16
16
15
28
75
24
2
PUP
(undef.)
8.2µs
MAX
80µs
32µs
16µs
UNITS
value.
µA
µs
µs
µs
µs
µs
pF
V
V
V