- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄359518 > DS1922T-F5 Temperature Logger iButton With 8kB Datalog Memory PDF資料下載
參數(shù)資料
| 型號(hào)： | DS1922T-F5 |
| 英文描述： | Temperature Logger iButton With 8kB Datalog Memory |
| 中文描述： | 溫度記錄儀iButton的記憶與8kB的數(shù)據(jù)記錄 |
| 文件頁(yè)數(shù)： | 48/48頁(yè) |
| 文件大小： | 428K |
| 代理商： | DS1922T-F5 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)當(dāng)前第48頁(yè)
DS1922L/DS1922T
48 of 48
STEP 1, PREPARATION
Read the 64-bit ROM to obtain the family code. If family code 41h then stop (wrong device).
Read the Configuration Byte at address 0226h.
If code = 40h then Tr1 = 60, Offset = 41
If code = 60h then Tr1 = 90, Offset = 1
For all other codes stop (wrong device)
Tr2 = Tr2H/2 + Tr2L/512 - Offset
Tr3 = Tr3H/2 + Tr3L/512 - Offset
Tc2 = Tc2H/2 + Tc2L/512 - Offset
Tc3 = Tc3H/2 + Tc3L/512 - Offset
Err2 = Tc2 - Tr2
Err3 = Tc3 - Tr3
Err1 = Err2
B = (Tr2
- Tr1
2
) * (Err3 - Err1)/[(Tr2
2
- Tr1
2
) * (Tr3 - Tr1) + (Tr3
2
- Tr1
2
) * (Tr1 - Tr2)]
A = B * (Tr1 – Tr2) / (Tr2
- Tr1
)
C = Err1 - A * Tr1
- B * Tr1
(DS1922L)
(DS1922T)
(convert from binary to °C)
(convert from binary to °C)
(convert from binary to °C)
(convert from binary to °C)
STEP 2, EXECUTION
Tc = TcH/2 + TcL/512 - Offset
Tcorr = Tc - (A * Tc
2
+ B * Tc + C)
(convert from binary to °C)
(the actual correction)
Numerical Correction Example
Converted data from Calibration Memory
Tr1 = 60°C
Tr2 = -10.1297°C
Tr3 = 24.6483°C
Tc2 = -10.0625°C
Tc3 = 24.5°C
Error values
Err2 = 0.0672°C
Err3 = -0.1483°C
Err1 = 0.0672°C
Resulting Correction Coefficients
B = -0.008741
A = 0.000175/°C
C = -0.039332°C
Application of Correction Coefficients to sample reading
Tc = 22.500°C
Tcorr = 22.647°C
NOTE:
The software correction requires floating point arithmetic (24-bit or better). Suitable math libraries for
microcontrollers are found on various websites and are included in cross-compilers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS3905U-020 | Triple 128-Position Nonvolatile Digital Variable Resistor/Switch |
| DR048 | DIGITAL FREQUENCY DISCRIMINATORS |
| DR050 | DIGITAL FREQUENCY DISCRIMINATORS |
| DR051 | DIGITAL FREQUENCY DISCRIMINATORS |
| DR053 | DIGITAL FREQUENCY DISCRIMINATORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1922T-F5# | 功能描述:iButton Temp Logger Ibutton w/8Kb Datalog Mem 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 |
| DS1922T-F50 | 制造商:Maxim Integrated Products 功能描述:THERMOCHRON,IBTN,F5,HI-TEMP,8K - Rail/Tube |
| DS1923 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory |
| DS1923_1 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory |
| DS1923_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Hygrochron Temperature/Humidity Logger |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。