Rainbow Electronics DS1993 - Manual (Page 22)

DS1992/DS1993/DS1994
22 of 23 102199
PHYSICAL SPECIFICATIONS
Size See mechanical drawing
Weight 3.3 grams (F5 package)
Humidity 90% RH at 50
°
C
Altitude 10,000 feet
Expected Service Life 10 years at 25
°
C
Safety Meets UL#913 (4th Edit.); 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 on any Pin Relative to Ground –0.5V to +7.0V
Operating Temperature –40
°
C to +70
°
C
Storage Temperature –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 maxi-
mum rating conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS (V
PUP
=2.8V to 6.0V; -40°C to +70°C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Logic 1 V
IH
2.2 V
CC
+0.3 V 1,8
Logic 0 V
IL
-0.3 +0.8 V 1
Output Logic Low @ 4 mA V
OL
0.4 V 1
Output Logic High V
OH
V
PUP
6.0 V 1,2
Input Load Current I
L
5
µ
A 3
CAPACITANCE (t
A
= 25°C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
I/O (1-Wire) C
IN/OUT
100 800 pF 6
AC ELECTRICAL CHARACTERISTICS (V
PUP
=2.8V to 6.0V; -40°C to +70°C)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Time Slot t
SLOT
60 120
µ
s
Write 1 Low Time t
LOW1
1 15
µ
s
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
µ
s
Read Data Setup t
SU
1
µ
s 5
Interrupt t
INT
960 4800
µ
s 9
Recovery Time t
REC
1
µ
s
Reset Time High t
RSTH
480
µ
s 4
Reset Time Low t
RSTL
480 960
µ
s 7
Presence Detect High t
PDH
15 60
µ
s
Presence Detect Low
t
PDL
60 240
µ
s