DS1922T-F5# Maxim Integrated Products, DS1922T-F5# Datasheet - Page 2

• Manufacturer Part Number: DS1922T-F5#
• Description: IBUTTON TEMP LOGGER
• Manufacturer: Maxim Integrated Products
• Series: iButton®r

Specifications of DS1922T-F5#

• Rohs Information: IButton RoHS Compliance Plan
• Memory Size: 512B
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Temperature Logger iButton with 8KB
Data-Log Memory
ABSOLUTE MAXIMUM RATINGS
IO Voltage Range to GND ........................................-0.3V to +6V
IO Sink Current....................................................................20mA
Operating Temperature Range
ELECTRICAL CHARACTERISTICS
(V
* Storage or operation above +50°C significantly reduces battery life.
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
Operating Temperature
IO PIN: GENERAL DATA
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 (Note 2)
Rising-Edge Hold-Off Time
Time-Slot Duration (Note 2)
IO PIN: 1-Wire RESET, PRESENCE-DETECT CYCLE
Reset Low Time (Note 2)
Presence-Detect High Time
Presence-Detect Fall Time
(Note 13)
DS1922L ...........................................................-40°C to +85°C
DS1922T ............................................................0°C to +125°C
PUP
_______________________________________________________________________________________
= +3.0V to +5.25V.)
PARAMETER
SYMBOL
R
t
t
t
t
t
t
V
V
SLOT
RSTL
C
V
V
REC
REH
V
PDH
FPD
T
PUP
I
TH
HY
OL
TL
IO
L
A
IL
DS1922L (Note 1)
DS1922T (Note 1)
(Notes 2, 3)
(Note 4)
IO pin at V
(Notes 5, 6)
(Notes 2, 7)
(Notes 5, 8)
(Note 9)
At 4mA (Note 10)
Standard speed, R
Overdrive speed, R
Overdrive speed, directly prior to reset
pulse; R
(Note 11)
Standard speed
Overdrive speed, V
Overdrive speed (Note 12)
Standard speed, V
Standard speed (Note 12)
Overdrive speed, V
Overdrive speed (Note 12)
Standard speed, V
Standard speed (Note 12)
Overdrive speed (Note 12)
Standard speed, V
Standard speed
Overdrive speed
PUP
PUP
= 2.2k
CONDITIONS
PUP
PUP
PUP
PUP
PUP
PUP
PUP
Junction Temperature ......................................................+150°C
Storage Temperature Range*
DS1922L..........................................................-40°C to +85°C*
DS1922T ...........................................................0°C to +125°C*
> 4.5V
> 4.5V
> 4.5V
= 2.2k
> 4.5V
> 4.5V
= 2.2k
0.09
0.15
MIN
480
690
-40
0.4
0.7
0.6
9.5
1.5
1.5
65
48
70
15
15
5
2
5
8
2
0
TYP
100
6
+125
MAX
63.5
+85
800
N/A
720
720
2.2
3.2
0.3
3.4
0.4
2.0
10
80
80
60
7
5
8
1
UNITS
k
pF
μA
°C
μs
μs
μs
μs
μs
μs
V
V
V
V
V