DS28EA00 Datasheet, PDF (2/29 Pages) Dallas Semiconductor – 1-Wire Digital Thermometer with Sequence Detect and PIO

DS28EA00 1-Wire Digital Thermometer with Sequence Detect and PIO
ABSOLUTE MAXIMUM RATINGS
IO Voltage to GND
IO Sink Current
Maximum PIOA or PIOB Pin Current
Maximum Current Through GND Pin
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Soldering Temperature
-0.5V, +6V
20mA
20mA
40mA
-40°C to +85°C
+150°C
-55°C to +125°C
See IPC/JEDEC J-STD-020
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
(T_A = -40°C to +85°C; see Note 1)
PARAMETER
SYMBOL
CONDITIONS
Power Supply
Supply Voltage
Supply Current (Note 5)
Standby Current
IO Pin General Data
V_DD
(Note 2)
I_DD
V_DD = 5.5V
I_DDS
V_DD = 5.5V
1-Wire Pullup Voltage
(Note 2)
V_PUP
Local power
Parasite power
1-Wire Pullup Resistance
R_PUP
(Notes 2, 3)
Input Capacitance
Input Load Current
High-to-Low Switching
Threshold
C_IO
(Notes 4, 5)
I_L
IO pin at V_PUP
V_TL
(Notes 5, 6, 7)
Input Low Voltage (Notes
2, 8)
Low-to-High Switching
Threshold (Notes 5, 6, 9)
V_IL
Parasite powered
V_DD powered (Note 5)
V_TH
Parasite power
Switching Hysteresis
(Notes 5, 6, 10)
V_HY
Parasite power
Output Low Voltage
(Note 11)
V_OL
At 4mA
Recovery Time
(Notes 2, 12)
Standard speed, R_PUP = 2.2kΩ
t_REC
Overdrive speed, R_PUP = 2.2kΩ
Overdrive speed, directly prior to reset
pulse; R_PUP = 2.2kΩ
Rising-Edge Hold-Off Time
(Notes 5, 13)
t_REH
Standard speed
Overdrive speed
Timeslot Duration
(Notes 2, 14)
t_SLOT
Standard speed
Overdrive speed
IO Pin, 1-Wire Reset, Presence Detect Cycle
Reset Low Time (Note 2)
t_RSTL
Standard speed
Overdrive speed
Presence-Detect High
Time
t_PDH
Standard speed
Overdrive speed
Presence-Detect Fall Time
(Notes 5, 15)
t_FPD
Standard speed
Overdrive speed
Presence-Detect Low
Time
t_PDL
Standard speed
Overdrive speed
Presence-Detect Sample
Time (Notes 2,16)
t_MSP
Standard speed
Overdrive speed
MIN
TYP MAX UNITS
3.0
5.5
V
1.5
mA
1.5
µA
3.0
3.0
0.3
0.1
0.46
1.0
0.21
V_DD
5.5
V
2.2
kΩ
1000
pF
1.5
µA
V_PUP -
1.9V
V
0.5
0.7
V
V_PUP -
1.1V
V
1.7
V
0.4
V
5
2
µs
5
0.5
5.0
Not applicable (0)
µs
65
8
µs
480
48
15
2
1.125
0
60
8
68.1
7.3
640
80
µs
60
6
µs
8.1
1.3
µs
240
24
µs
75
10
µs
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