DS28E02 Maxim, DS28E02 Datasheet - Page 2

• Manufacturer Part Number: DS28E02
• Description: The DS28E02 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the FIPS 180-3 Secure Hash Algorithm (SHA-1)
• Manufacturer: Maxim

1-Wire SHA-1 Authenticated 1Kb
EEPROM with 1.8V Operation
ABSOLUTE MAXIMUM RATINGS
IO Voltage Range to GND .......................................-0.5V to +4V
IO Sink Current ...................................................................20mA
Operating Temperature Range ...........................-20°C to +85°C
ELECTRICAL CHARACTERISTICS
(T
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
2
IO PIN: GENERAL DATA
1-Wire Pullup Voltage
1-Wire Pullup Resistance
Input Capacitance
Input Load Current
High-to-Low Switching Threshold
Input Low Voltage
Low-to-High Switching Threshold
Switching Hysteresis
Output Low Voltage
Recovery Time (Notes 2, 12)
Time Slot Duration (Notes 2, 13)
IO PIN: 1-Wire RESET, PRESENCE-DETECT CYCLE
Reset Low Time (Note 2)
Reset High Time (Note 14)
Presence-Detect Sample Time
(Notes 2, 15)
IO PIN: 1-Wire WRITE
Write-Zero Low Time (Notes 2, 16)
Write-One Low Time (Notes 2, 16)
IO PIN: 1-Wire READ
Read Low Time (Notes 2, 17)
Read Sample Time (Notes 2, 17)
EEPROM
Programming Current
(Notes 5, 18)
A
= -20°C to +85°C.) (Note 1)
_______________________________________________________________________________________
PARAMETER
ABRIDGED DATA SHEET
SYMBOL
I
t
R
t
t
V
PROG
t
t
t
RSTH
SLOT
RSTL
t
t
C
V
V
V
MSP
MSR
V
REC
V
W0L
W1L
t
PUP
PUP
I
RL
HY
OL
TH
IO
L
TL
IL
(Note 2)
(Notes 2, 3)
(Notes 4, 5)
IO pin at V
(Notes 5, 6, 7)
(Notes 2, 8)
(Notes 5, 6, 9)
(Notes 5, 6, 10)
At 4mA current load (Note 11)
Standard speed, RPUP = 750
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
IO voltage < 3.65V
IO voltage < 2.95V
IO voltage = 1.75V
PUP
CONDITIONS
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-55°C to +125°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
t
t
RL
RL
1.75
0.05
0.74
0.26
MIN
300
480
480
0.4
20
20
80
28
50
48
60
60
7
8
1
1
5
1
+
+
1500
TYP
V
V
15 -
MAX
3.65
0.89
0.30
0.49
1.02
15.5
2 -
PUP
PUP
750
640
120
0.4
3.5
2.5
1.0
80
72
10
15
15
5
2
2
–
–
UNITS
mA
pF
μA
μs
μs
μs
μs
μs
μs
μs
μs
μs
V
V
V
V
V
V