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參數(shù)資料
| 型號： | DS1923 |
| 英文描述： | Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory |
| 文件頁數(shù)： | 47/52頁 |
| 文件大小： | 495K |
| 代理商： | DS1923 |
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DS1923: Hygrochron Temperature/Humidity Logger iButton with 8kB Data Log Memory
EXAMPLE VALUES
Enable high and low alarm
Enable high and low alarm
On (enabled), EHSS = 0 (low sample rate)
47 of 52
ADDRESS
0210h
0211h
0212h
DATA
03h
FFh
01h
FUNCTION
Temperature Alarm Control
Humidity Alarm Control
RTC oscillator control, sample rate
selection
General mission control
Clock through
Read-only registers
Mission start delay
0213h
0214h
0215h
0216h
0217h
0218h
C3h
FFh
FFh
5Ah
00h
00h
Normal start; no rollover; 8-bit logging
(don’t care)
90 minutes
With only a single device connected to the bus master, the communication of step 2 looks like this:
MASTER MODE
TX
RX
TX
TX
TX
TX
TX
TX
TX
RX
TX
TX
RX
RX
RX
RX
TX
RX
TX
TX
TX
TX
TX
TX
TX
RX
DATA (LSB FIRST)
(Reset)
(Presence)
CCh
0Fh
00h
02h
<25 data bytes>
<7 FFh bytes>
(Reset)
(Presence)
CCh
AAh
00h
02h
1Fh
<32 data bytes>
(Reset)
(Presence)
CCh
99h
00h
02h
1Fh
<8 FFh bytes>
(Reset)
(Presence)
COMMENTS
Reset pulse
Presence pulse
Issue “skip ROM” command
Issue “write scratchpad” command
TA1, beginning offset=00h
TA2, address=0200h
Write 25 bytes of data to scratchpad
Write through the end of the scratchpad
Reset pulse
Presence pulse
Issue “skip ROM” command
Issue “read scratchpad” command
Read TA1, beginning offset=00h
Read TA2, address=0200h
Read E/S, ending offset=1Fh, flags=0h
Read scratchpad data and verify
Reset pulse
Presence pulse
Issue “skip ROM” command
Issue “copy scratchpad” command
TA1
TA2
(AUTHORIZATION CODE)
E/S
Send dummy password
Reset pulse
Presence pulse
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| DS1990A | Serial Number iButton |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| DS1923-F5 | 功能描述:iButton RoHS:否 存儲類型:SRAM 存儲容量: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 |
| DS1923-F5# | 功能描述:iButton Hygrochron Temp/Hum Logger w/8KB DataLog RoHS:否 存儲類型:SRAM 存儲容量: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 |
| DS1923-F5#W | 功能描述:iButton Hygrochron Temp/Hum Logger w/8KB DataLog RoHS:否 存儲類型:SRAM 存儲容量: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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