Datasheet

DS1992/DS1993
15 of 17
PHYSICAL SPECIFICATIONS
Size See mechanical drawing
Weight 3.3 grams (F5 package)
Expected Service Life 10 years at +25°C
Safety Meets UL 913, 5th Ed., Rev. 1997-02-24; Intrinsically Safe
Apparatus, Approved under Entity Concept for use in
Class I, Division 1, Group A, B, C, and D Locations
ABSOLUTE MAXIMUM RATINGS
Voltage Range on any Pin Relative to Ground -0.5V to +7.0V
Operating Temperature Range -40°C to +70°C
Storage Temperature Range -40°C to +70°C
This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation
sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect
reliability.
DC ELECTRICAL CHARACTERISTICS
(T
A
= -40°C to +70°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
1-Wire Pullup Voltage
(Notes 1, 3)
V
PUP
2.8 6.0 V
Logic 1 (Notes 1, 2)
V
IH
2.2
V
Logic 0 (Note 1)
V
IL
-0.3
+0.3
V
Output Logic Low at 4mA
(Note 1)
V
OL
0.4 V
Input Load Current (Note 4)
I
L
5
µA
CAPACITANCE
(T
A
= +25°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
I/O (1-Wire) (Notes 5, 6)
C
IN/OUT
100
800
pF
AC ELECTRICAL CHARACTERISTICS
(V
PUP
= 2.8V to 6.0V, T
A
= -40°C to +70°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
Time Slot
t
SLOT
60
120
µs
Write 1 Low Time
t
LOW1
1
15
µs
Write 0 Low Time
t
LOW0
60
120
µ
s
Read Data Valid
t
RDV
exactly 15
µ
s
Release Time
t
RELEASE
0
15
45
µs
Read Data Setup (Note 7)
t
SU
1
µs
Recovery Time
t
REC
1
µs
Reset Time High (Note 8)
t
RSTH
480
µ
s
Reset Time Low (Note 9)
t
RSTL
480 960
µ
s
Presence Detect High
t
PDH
15 60
µ
s
Presence Detect Low
t
PDL
60
240
µ
s