DS1993 Maxim, DS1993 Datasheet - Page 15

• Manufacturer Part Number: DS1993
• Description: The DS1992/DS1993 memory iButtons (hereafter referred to as DS199_) are rugged read/write data carriers that act as a localized database, easily accessible with minimal hardware
• Manufacturer: Maxim

PHYSICAL SPECIFICATIONS
Size
Weight
Expected Service Life
Safety
ABSOLUTE MAXIMUM RATINGS
Voltage Range on any Pin Relative to Ground
Operating Temperature Range
Storage Temperature Range
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
CAPACITANCE
(T
AC ELECTRICAL CHARACTERISTICS
(V
1-Wire Pullup Voltage
(Notes 1, 3)
Logic 1 (Notes 1, 2)
Logic 0 (Note 1)
Output Logic Low at 4mA
(Note 1)
Input Load Current (Note 4)
PARAMETER
I/O (1-Wire) (Notes 5, 6)
PARAMETER
Time Slot
Write 1 Low Time
Write 0 Low Time
Read Data Valid
Release Time
Read Data Setup (Note 7)
Recovery Time
Reset Time High (Note 8)
Reset Time Low (Note 9)
Presence Detect High
Presence Detect Low
A
A
PUP
= -40°C to +70°C)
= +25°C)
= 2.8V to 6.0V, T
PARAMETER
A
= -40°C to +70°C)
SYMBOL
SYMBOL
SYMBOL
t
C
RELEASE
t
t
V
t
t
t
t
V
IN/OUT
t
t
t
LOW1
LOW0
V
V
SLOT
RSTH
RSTL
RDV
t
REC
PDH
PDL
I
PUP
SU
OL
L
IH
IL
See mechanical drawing
3.3 grams (F5 package)
10 years at +25°C
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
15 of 17
MIN
MIN
MIN
-0.3
480
480
2.8
2.2
60
60
15
60
-0.5V to +7.0V
-40°C to +70°C
-40°C to +70°C
1
0
1
exactly 15
TYP
TYP
TYP
100
15
5
MAX
MAX
MAX
+0.3
800
120
120
960
240
6.0
0.4
15
45
60
1
DS1992/DS1993
UNITS
UNITS
UNITS
µA
pF
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
V
V
V
V