DS18B20-PAR_07 MAXIM [Maxim Integrated Products], DS18B20-PAR_07 Datasheet - Page 17

• Manufacturer Part Number: DS18B20-PAR_07
• Description: 1-Wire Parasite-Power Digital Thermometer
• Manufacturer: MAXIM [Maxim Integrated Products]

ABSOLUTE MAXIMUM RATINGS*
Voltage on any pin relative to ground
Operating temperature
Storage temperature
Soldering temperature
*These are stress ratings only and functional operation of the device at these or any other conditions
DC ELECTRICAL CHARACTERISTICS
NOTES:
1.
2.
3.
4.
5.
6.
7.
8.
9.
AC ELECTRICAL CHARACTERISTICS: NV MEMORY
PARAMETER
Pullup Supply
Voltage
Thermometer Error
Input Logic Low
Input Logic High
Sink Current
Active Current
DQ Input Current
Drift
NV Write Cycle Time
EEPROM Writes
EEPROM Data Retention
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.
ideal, and therefore the high level of the pullup is equal to V
DS18B20-PAR, the actual supply rail for the strong pullup transistor must include margin for the
voltage drop across the transistor when it is turned on; thus: V
to be reduced to as low as 0.5V.
All voltages are referenced to ground.
The Pullup Supply Voltage specification assumes that the pullup device (resistor or transistor) is
See typical performance curve in Figure 16.
Logic low voltages are specified at a sink current of 4 mA.
To always guarantee a presence pulse under low voltage parasite power conditions, V
Logic high voltages are specified at a source current of 1 mA.
Active current refers to supply current during active temperature conversions or EEPROM writes.
DQ line is high (“hi-Z” state).
Drift data is based on a 1000 hour stress test at 125°C.
PARAMETER
SYMBOL
I
V
t
V
V
I
DQA
ERR
I
DQ
PU
L
IH
IL
SYMBOL
N
t
EEDR
EEWR
t
wr
-55°C to +100°C
-10°C to +85°C
CONDITION
V
I/O
-55°C to +55°C
-55°C to +55°C
CONDITION
=0.4V
–0.5V to +6.0V
–55°C to +100°C
–55°C to +125°C
See J-STD-020A Specification
17 of 19
(-55°C to +100°C; V
(-55°C to +100°C; V
MIN
-0.3
3.0
3.0
4.0
PU
MIN
PU_ACTUAL
50k
TYP
±0.2
10
. In order to meet the V
1
5
TYP
= V
MAX
+0.8
2
5.5
±½
5.5
1.5
±2
PU_IDEAL
PU
PU
MAX
=3.0V to 5.5V)
=3.0V to 5.5V)
UNITS NOTES
10
+ V
mA
mA
µA
°C
°C
V
V
V
ILMAX
IH
TRANSISTOR
DS18B20-PAR
spec of the
may have
UNITS
writes
years
ms
1,4,5
1,2
1,6
3
1
7
8
9
.