DS1972-F3 MAXIM [Maxim Integrated Products], DS1972-F3 Datasheet - Page 2

• Manufacturer Part Number: DS1972-F3
• Description: 1024-Bit EEPROM iButton
• Manufacturer: MAXIM [Maxim Integrated Products]

ABSOLUTE MAXIMUM RATINGS
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 the absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
I/O Voltage to GND
I/O Sink Current
Operating Temperature Range
Junction Temperature
Storage Temperature Range
I/O 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)
Rising-Edge Hold-off Time
(Notes 5, 13)
Timeslot Duration
(Note 2, 14)
I/O PIN, 1-WIRE RESET, PRESENCE DETECT CYCLE
Reset Low Time (Note 2)
Presence Detect High
Time
Presence Detect Low
Time
Presence Detect Sample
Time (Notes 2, 15)
I/O PIN, 1-Wire WRITE
Write-0 Low Time (Notes
2, 16)
Write-1 Low Time
(Notes 2, 17)
I/O PIN, 1-Wire READ
Read Low Time
(Notes 2, 18)
Read Sample Time
(Notes 2, 18)
PARAMETER
SYMBOL
R
V
t
t
t
t
t
t
t
t
t
V
V
V
t
C
V
SLOT
RSTL
V
MSR
REC
REH
PDH
MSP
W0L
W1L
t
PDL
PUP
PUP
I
RL
TH
HY
OL
L
TL
IO
IL
(Notes 2)
(Notes 2, 3)
(Notes 4, 5)
I/O pin at V
(Notes 5, 6, 7)
(Notes 2, 8)
(Notes 5, 6, 9)
(Notes 5, 6, 10)
At 4mA (Note 11)
Standard speed, R
Overdrive speed, R
Overdrive speed, directly prior to Reset
Pulse; R
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, V
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
Standard speed
Overdrive speed
PUP
PUP
= 2.2kW
CONDITIONS
2 of 23
PUP
PUP
PUP
= 2.2kW
= 2.2kW
> 4.5V
t
t
RL
RL
0.05
0.46
0.21
MIN
480
2.8
0.3
1.0
0.5
65
48
15
60
60
60
5
2
5
8
2
8
6
5
6
1
1
5
1
(T
+ d
+ d
Not applicable (0)
A
= -40°C to +85°C; see Note 1.)
TYP
15 - d
15 - e
MAX
1000
5.25
1.70
15.5
15.5
2 - e
2 - d
640
240
120
2.2
6.7
4.4
0.3
4.9
0.4
5.0
80
60
24
75
10
15
6
2
-40°C to +85°C
-40°C to +85°C
-0.5V, +6V
UNITS
+150°C
kW
µA
pF
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
20mA
V
V
V
V
V
V