參數(shù)資料
型號(hào): DS18S20Z
元件分類(lèi): 溫度傳感器
英文描述: High Precision 1-Wire Digital Thermometer
中文描述: 高精度1 - Wire數(shù)字溫度計(jì)
文件頁(yè)數(shù): 25/27頁(yè)
文件大?。?/td> 136K
代理商: DS18S20Z
DS18S20
25 of 27
AC ELECTRICAL CHARACTERISTICS:
(-55°C to +125°C; V
DD
=3.0V to 5.5V)
MIN
TYP
MAX
200
750
PARAMETER
Temperature Conversion
Time
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
Capacitance
SYMBOL
t
CONV
CONDITION
UNITS
ms
NOTES
t
SLOT
t
REC
r
LOW0
t
LOW1
t
RDV
t
RSTH
t
RSTL
t
PDHIGH
t
PDLOW
C
IN/OUT
60
1
60
1
120
μs
μs
μs
μs
μs
μs
μs
μs
μs
pF
120
15
15
480
480
15
60
9
60
240
25
NOTES:
1.
All voltages are referenced to ground.
2.
Logic one voltages are specified at a source current of 1 mA.
3.
Logic zero voltages are specified at a sink current of 4 mA.
4.
Active current refers to either temperature conversion or writing to the E
2
memory. Writing to E
2
memory consumes approximately 200
μ
A for up to 10 ms.
5.
Input load is to ground.
6.
Standby current specified up to 70
°
C. Standby current typically is 3
μ
A at 125
°
C.
7.
To always guarantee a presence pulse under low voltage parasite power conditions, V
ILMAX
may have
to be reduced to as much as 0.5V.
8.
To minimize I
DDS
, DQ should be GND
DQ
GND + 0.3V or V
DD
– 0.3V
DQ
V
DD
.
9.
Under parasite power, the max t
RSTL
before a power on reset occurs, is 960 ms.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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