參數(shù)資料
型號(hào): DS18B20P
廠商: DALLAS SEMICONDUCTOR
元件分類: Switch/Digital Output Temperature Sensor
英文描述: DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT
封裝: TSOC-6
文件頁數(shù): 18/26頁
文件大?。?/td> 387K
代理商: DS18B20P
DS18B20
25 of 26
AC ELECTRICAL CHARACTERISTICS:
(-55°C to +125°C; VDD=3.0V to 5.5V)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
NOTES
Temperature
Conversion
tCONV
9-bit
93.75
ms
Time
10-bit
187.5
11-bit
375
12-bit
750
Time Slot
tSLOT
60
120
s
Recovery Time
tREC
1s
Write 0 Low Time
rLOW0
60
120
s
Write 1 Low Time
tLOW1
115
s
Read Data Valid
tRDV
15
s
Reset Time High
tRSTH
480
s
Reset Time Low
tRSTL
480
s
9
Presence Detect High
tPDHIGH
15
60
s
Presence Detect Low
tPDLOW
60
240
s
Capacitance
CIN/OUT
25
pF
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 E2
memory consumes approximately 200
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 A at 125°C.
7. To always guarantee a presence pulse under low voltage parasite power conditions, VILMAX may have
to be reduced to as much as 0.5V.
8. To minimize IDDS, DQ should be: GND
≤ DQ ≤ GND +0.3V or V
DD – 0.3V
≤ DQ ≤ V
DD.
9. Under parasite power, the max tRSTL before a power on reset occurs is 960
S.
相關(guān)PDF資料
PDF描述
DS18B20X DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 2Cel, RECTANGULAR, SURFACE MOUNT
DS18B20Z DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, SURFACE MOUNT
DS18B20 DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
DS18B20U+T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, SQUARE, SURFACE MOUNT
DS18B20-SL+T&R DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 0.50Cel, RECTANGULAR, THROUGH HOLE MOUNT
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