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參數(shù)資料
| 型號(hào)： | DS1921 |
| 英文描述： | High-Resolution Thermochron iButton |
| 中文描述： | 高分辨率Thermochron iButton的 |
| 文件頁數(shù)： | 42/44頁 |
| 文件大?。?/td> | 271K |
| 代理商： | DS1921 |
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DS1921H/Z
42 of 44
9) Voltage above which, during a rising edge on IO, a logic 1 is detected.
10) The I-V characteristic is linear for voltages less than 1V.
11)
ε
represents the time required for the pull-up circuitry to pull the voltage on IO up from V
IL
to
V
TH
.
12)
δ
represents the time required for the pull-up circuitry to pull the voltage on IO up from V
IL
to the
input high threshold of the bus master.
13) This number was derived from a test conducted by Cemagref in Antony, France, in July of 2000.
Test Report No. E42 the RTC oscillator should be turned off and device should be stored at a temperature not
exceeding +25°C. Under this condition the shelf life time is 10 years minimum.
15) Highlighted numbers are not in compliance with the published iButton standards. See comparison
table below.
16) These values are derived from simulation across process, voltage, and temperature and are not
production tested.
17) Total accuracy is
plus 1/16°C quantization due to the 1/8°C digital resolution of the device.
18) WARNING: Not for use as the sole or primary method of measuring or tracking temperature
and/or humidity in products and articles that could affect the health or safety of persons, plants,
animals, or other living organisms, including but not limited to foods, beverages, pharmaceuticals,
medications, blood and blood products, organs, flammable, and combustible products. User shall
assure that other primary and redundant methods of testing and determining the handling
methods, quality, and fitness of the articles and products should be implemented. Temperature
and/or humidity tracking with this product is recommended only as a supplemental and redundant
information source. User shall be responsible for proper use, storage, and calibration of this
product.
Parameter
Name
t
SLOT
(incl. t
REC
)
t
RSTL
t
PDH
t
PDL
t
W0L
Standard Values
DS1921H/Z Values
Standard Speed
min
max
65μs
1)
(undef.)
540μs
640μs
15μs
60μs
60μs
270μs
60μs
120μs
Standard Speed
min
61μs
480μs
15μs
60μs
60μs
Overdrive Speed
min
7μs
48μs
2μs
8μs
6μs
Overdrive Speed
min
8μs
1)
48μs
1.1μs
7.5μs
6μs
max
(undef.)
(undef.)
60μs
240μs
120μs
max
(undef.)
80μs
6μs
24μs
16μs
max
(undef.)
80μs
6μs
24μs
15μs
1) Intentional change, longer recovery time between time slots.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1921H-F5 | High-Resolution Thermochron iButton |
| DS1921Z-F5 | High-Resolution Thermochron iButton |
| DS1963L-F5 | NVRAM (Battery Based) |
| DS1963S | SHA iButton |
| DS1971 | 256-Bit EEPROM iButton |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1921G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Thermochron iButton |
| DS1921G_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Logs Up to 2048 Consecutive Temperature Thermochron iButton |
| DS1921G_1109 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Thermochron iButton |
| DS1921G_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Thermochron iButton |
| DS1921G-F5 | 功能描述:iButton RoHS:否 存儲(chǔ)類型:SRAM 存儲(chǔ)容量:512 B 組織: 工作電源電壓:3 V to 5.25 V 接口類型:1-Wire 最大工作溫度:+ 85 C 尺寸:17.35 mm x 5.89 mm 封裝 / 箱體:F5 MicroCan 制造商:Maxim Integrated |
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