參數(shù)資料
型號: DS2422S
英文描述: 1-Wire Temperature/Datalogger with 8kB Datalog Memory
中文描述: 1 - Wire溫度/數(shù)據(jù)記錄器與8kB的數(shù)據(jù)記錄存儲器
文件頁數(shù): 2/48頁
文件大?。?/td> 444K
代理商: DS2422S
DS2422
2 of 48
ABSOLUTE MAXIMUM RATINGS*
ALARM, PUMP_ONZ, SDATA, SCLK, CNVST, VPAD,
I/O Voltage to GND
ALARM, PUMP_ONZ, I/O
Combined
Sink Current
Operating Temperature Range
Junction Temperature
Storage Temperature Range
Soldering Temperature
-0.3V, +6V
20mA
-40°C to +85°C
+150°C
-55°C to +125°C
See IPC/JEDEC J-STD-020A
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
(V
PUP
= 3.0V to 5.25V, V
BAT
= 2.0V to 3.6V, V
PAD
= 3.0V to 5.5V, T
A
= -40°C to +85°C.
)
PARAMETER
SYMBOL
I
BAT1
V
BAT
at 3.0V, I/O at 0V, RTC on
Standby Supply Current
I
BAT0
V
BAT
at 3.6V, I/O at 0V, RTC off
Applies individually to GND, AGND
(Note 1)
I/O Pin General Data
1-Wire Pullup Resistance
R
PUP
(Notes 1, 2)
Input Capacitance
C
IO
(Notes 3, 4)
Input Load Current
I
L
I/O pin at V
PUP,
V
BAT
= 3.6V
High-to-Low Switching
Threshold
Input Low Voltage
V
IL
(Notes 1, 7)
Low-to-High Switching
Threshold
Switching Hysteresis
V
HY
(Notes 4, 9)
Output Low Voltage
V
OL
At 4mA (Note 10)
Standard speed, R
PUP
= 2.2k
Overdrive speed, R
PUP
= 2.2k
Recovery Time (Note 1)
t
REC
Overdrive speed, directly prior to reset
pulse; R
PUP
= 2.2k
Rising-Edge Hold-off Time
t
REH
(Notes 4, 11)
Standard speed
Overdrive speed, V
PUP
> 4.5V
Timeslot Duration (Note 1)
t
SLOT
Overdrive speed (Note 12)
I/O Pin, 1-Wire Reset, Presence Detect Cycle
Standard speed, V
PUP
> 4.5V
Standard speed (Note 12)
Overdrive speed, V
PUP
> 4.5V
Overdrive speed (Note 12)
Standard speed, V
PUP
> 4.5V
Standard speed (Note 12)
Time
Overdrive speed (Note 12)
Standard speed, V
PUP
> 4.5V
Standard speed
(Notes 4, 13)
Overdrive speed
Standard speed, V
PUP
> 4.5V
Standard speed (Note 12)
Overdrive speed, V
PUP
> 4.5V
(Note 12)
Overdrive speed (Note 12)
Standard speed, V
PUP
> 4.5V
Standard speed
Time (Note 1)
Overdrive speed
CONDITIONS
MIN
TYP
1200
50
MAX
2000
650
UNITS
nA
Ground Current
I
GND
20
mA
2.2
800
10
k
pF
μA
100
6
V
TL
(Notes 4, 5, 6)
0.4
3.2
V
0.3
V
V
TH
(Notes 4, 5, 8)
0.7
3.4
V
0.09
N/A
0.4
V
V
5
2
5
μs
0.6
65
8
9.5
2.0
μs
μs
480
690
48
70
15
15
2
1.5
1.5
0.15
60
60
720
720
80
80
60
63.5
7
5
8
1
240
287
Reset Low Time (Note 1)
t
RSTL
μs
Presence Detect High
t
PDH
μs
Presence Detect Fall Time
t
FPD
μs
7
24
Presence Detect Low
Time
t
PDL
7
28
75
75
9
μs
65
71.5
8
Presence Detect Sample
t
MSP
μs
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