DS18B20U+T&R Maxim Integrated Products, DS18B20U+T&R Datasheet - Page 19
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DS18B20U+T&R
Manufacturer Part Number
DS18B20U+T&R
Description
IC THERM MICROLAN PROG-RES 8USOP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS18B20U.pdf
(22 pages)
Specifications of DS18B20U+T&R
Function
Thermometer, Thermostat
Topology
Register Bank, Scratchpad
Sensor Type
Internal
Sensing Temperature
-55°C ~ 125°C
Output Type
1-Wire®
Output Alarm
Yes
Output Fan
No
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Full Temp Accuracy
+/- 2 C
Digital Output - Bus Interface
Serial (1-Wire)
Digital Output - Number Of Bits
12 bit
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 55 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground .................................................................. -0.5V to +6.0V
Operating Temperature Range ....................................................................................... -55°C to +125°C
Storage Temperature Range ........................................................................................... -55°C to +125°C
Solder Temperature ..................................................... Refer to the IPC/JEDEC J-STD-020 Specification.
These are stress ratings 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
NOTES:
1) All voltages are referenced to ground.
2) The Pullup Supply Voltage specification assumes that the pullup device is ideal, and therefore the
3) See typical performance curve in Figure 17.
4) Logic-low voltages are specified at a sink current of 4mA.
5) To guarantee a presence pulse under low voltage parasite power conditions, V
6) Logic-high voltages are specified at a source current of 1mA.
7) Standby current specified up to +70°C. Standby current typically is 3µA at +125°C.
8) To minimize I
9) Active current refers to supply current during active temperature conversions or EEPROM writes.
10) DQ line is high (“high-Z” state).
11) Drift data is based on a 1000-hour stress test at +125°C with V
Supply Voltage
Pullup Supply
Voltage
Thermometer
Error
Input Logic-Low
Input Logic-High
Sink Current
Standby Current
Active Current
DQ Input Current
Drift
PARAMETER
high level of the pullup is equal to V
supply rail for the strong pullup transistor must include margin for the voltage drop across the
transistor when it is turned on; thus: V
reduced to as low as 0.5V.
V
DD
– 0.3V ≤ DQ ≤ V
DDS
, DQ should be within the following ranges: GND ≤ DQ ≤ GND + 0.3V or
SYMBOL
V
I
V
t
DD
V
V
I
I
ERR
DDS
I
DD
DQ
DD
PU
L
IH
IL
.
Local Power
Parasite Power
Local Power
-10°C to +85°C
-55°C to +125°C
Local Power
Parasite Power
V
V
CONDITIONS
I/O
DD
PU
= 0.4V
= 5V
PU_ACTUAL
. In order to meet the V
19 of 22
= V
MIN
+3.0
+3.0
+3.0
+2.2
+3.0
-0.3
PU_IDEAL
4.0
(-55°C to +125°C; V
TYP
±0.2
750
+ V
1
5
IH
DD
spec of the DS18B20, the actual
TRANSISTOR
= 5.5V.
The lower of
V
DD
MAX
1000
+5.5
+5.5
±0.5
+0.8
V
5.5
1.5
±2
or
DD
+ 0.3
.
ILMAX
DD
UNITS NOTES
=3.0V to 5.5V)
may have to be
mA
mA
µA
nA
°C
°C
V
V
V
V
DS18B20
1,4,5
1, 6
1,2
7,8
10
11
1
3
1
9