參數(shù)資料
型號(hào)： DS1922T
英文描述： Temperature Logger iButton with 8kB Datalog Memory
文件頁數(shù)： 46/48頁
文件大?。?/td> 428K
代理商： DS1922T
DS1922L/DS1922T
FUNCTION
46 of 48
ADDRESS
020Ch
020Dh
020Eh
020Fh
0210h
0211h
0212h
DATA
FFh
FFh
FFh
FFh
02h
FCh
01h
EXAMPLE VALUES
(Don’t care)
Clock through
read-only registers
Enable high alarm
Disabled
On (enabled), EHSS = 0 (low sample rate)
Temperature Alarm Control
(Not applicable with DS1922L/T)
RTC Oscillator Control, sample
rate selection
General Mission Control
Clock through
read-only registers
0213h
0214h
0215h
0216h
0217h
0218h
C1h
FFh
FFh
5Ah
00h
00h
Normal start; no rollover; 8-bit temp. log
(Don’t care)
90 minutes
Mission Start Delay
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1922T-A1F 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
DS1922T-A1F+ 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
DS1922T-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
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
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