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DS1922L-F5 Datasheet(PDF) 2 Page - Maxim Integrated Products

Part # DS1922L-F5
Description  Temperature Logger iButton with 8KB Data-Log Memory
Download  52 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS1922L-F5 Datasheet(HTML) 2 Page - Maxim Integrated Products

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Temperature Logger iButton with 8KB
Data-Log Memory
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VPUP = +3.0V to +5.25V.)
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.
IO Voltage Range to GND ........................................-0.3V to +6V
IO Sink Current....................................................................20mA
Operating Temperature Range
DS1922L ...........................................................-40°C to +85°C
DS1922T ............................................................0°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range*
DS1922L..........................................................-40°C to +85°C*
DS1922T ...........................................................0°C to +125°C*
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DS1922L (Note 1)
-40
+85
Operating Temperature
TA
DS1922T (Note 1)
0
+125
°C
IO PIN: GENERAL DATA
1-Wire Pullup Resistance
RPUP
(Notes 2, 3)
2.2
k
Input Capacitance
CIO
(Note 4)
100
800
pF
Input Load Current
IL
IO pin at VPUP
6
10
μA
High-to-Low Switching Threshold
VTL
(Notes 5, 6)
0.4
3.2
V
Input Low Voltage
VIL
(Notes 2, 7)
0.3
V
Low-to-High Switching Threshold
VTH
(Notes 5, 8)
0.7
3.4
V
Switching Hysteresis
VHY
(Note 9)
0.09
N/A
V
Output Low Voltage
VOL
At 4mA (Note 10)
0.4
V
Standard speed, RPUP = 2.2k
5
Overdrive speed, RPUP = 2.2k
2
Recovery Time (Note 2)
tREC
Overdrive speed, directly prior to reset
pulse; RPUP = 2.2k
5
μs
Rising-Edge Hold-Off Time
tREH
(Note 11)
0.6
2.0
μs
Standard speed
65
Overdrive speed, VPUP > 4.5V
8
Time-Slot Duration (Note 2)
tSLOT
Overdrive speed (Note 12)
9.5
μs
IO PIN: 1-Wire RESET, PRESENCE-DETECT CYCLE
Standard speed, VPUP > 4.5V
480
720
Standard speed (Note 12)
690
720
Overdrive speed, VPUP > 4.5V
48
80
Reset Low Time (Note 2)
tRSTL
Overdrive speed (Note 12)
70
80
μs
Standard speed, VPUP > 4.5V
15
60
Standard speed (Note 12)
15
63.5
Presence-Detect High Time
tPDH
Overdrive speed (Note 12)
2
7
μs
Standard speed, VPUP > 4.5V
1.5
5
Standard speed
1.5
8
Presence-Detect Fall Time
(Note 13)
tFPD
Overdrive speed
0.15
1
μs
*
Storage or operation above +50°C significantly reduces battery life.


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