DS1922E(2008) 查看數據表（PDF） - Maxim Integrated
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DS1922E Datasheet PDF : 44 Pages
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High-Temperature Logger iButton with 8KB
Data-Log Memory
Comparison Table
LEGACY VALUES
DS1922E VALUES
PARAMETER
STANDARD SPEED
(μs)
OVERDRIVE SPEED
(μs)
STANDARD SPEED
(μs)
OVERDRIVE SPEED
(μs)
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
tSLOT (including tREC)
61
(undefined)
7
(undefined)
65*
(undefined)
9.5
(undefined)
tRSTL
480
(undefined)
48
80
690
720
70
80
tPDH
15
60
2
6
15
63.5
2
7
tPDL
60
240
8
24
60
287
7
28
tW0L
60
120
6
16
60
120
7.5
12
*Intentional change; longer recovery time requirement due to modified 1-Wire front-end.
Note: Numbers in bold are not in compliance with the published iButton standards.
iButton Can Physical Specification
SIZE
See the Package Information section.
WEIGHT
Ca. 3.3 grams
SAFETY
Meets UL 913 (4th Edit.); Intrinsically Safe Apparatus, approval under Entity Concept for use in Class I,
Division 1, Group A, B, C, and D Locations*.
*Application pending.
RTC Accuracy
RTC ACCURACY (TYPICAL)
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
15 25 35 45 55 65 75 85 95 105 115 125 135
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
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