
DS1922E
iButton High-Temperature Logger 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
t SLOT (including t REC )
61
(undefined)
7
(undefined)
65
*
(undefined)
9.5
(undefined)
t RSTL
t PDH
t PDL
t W0L
480
15
60
60
(undefined)
60
240
120
48
2
8
6
80
6
24
16
690
15
60
60
720
63.5
287
120
70
2
7
7.5
80
7
28
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 device standards.
iButton CAN PHYSICAL SPECIFICATION
SIZE
WEIGHT
See the Package Information section.
Ca. 3.3 grams
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
RTC ACCURACY (TYPICAL)
RTC Accuracy
15
25
35
45
55
65
75
85
95
105
115
125
135
TEMPERATURE ( ° C)
Maxim Integrated
5