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參數(shù)資料
| 型號(hào)： | DS1992 |
| 英文描述： | 1kb/4kb Memory iButton |
| 中文描述： | 1K位/4K位存儲(chǔ)器iButton® |
| 文件頁(yè)數(shù)： | 9/17頁(yè) |
| 文件大?。?/td> | 223K |
| 代理商： | DS1992 |
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DS1992/DS1993
MEMORY FUNCTION EXAMPLES
Example: Write two data Bytes to memory locations 0026h and 0027h (the seventh and eighth Bytes of
page 1). Read entire memory.
9of 9
MASTER MODE
TX
RX
TX
TX
TX
TX
TX
TX
RX
TX
TX
RX
RX
RX
RX
TX
RX
TX
TX
TX
TX
TX
TX
RX
TX
TX
TX
TX
DATA (LSB FIRST)
Reset
Presence
CCh
0Fh
26h
00h
<2 data Bytes>
Reset
Presence
CCh
Aah
26h
00h
07h
<2 data Bytes>
Reset
Presence
CCh
55h
26h
00h
07h
Reset
Presence
CCh
F0h
00h
00h
<128 Bytes (DS1992)>
<512 Bytes (DS1993)>
Reset
Presence
COMMENTS
Reset pulse (480 s to 960 s)
Presence pulse
Issue skip ROM command
Issue write scratchpad command
TA1, beginning offset = 6
TA2, address = 0026h
Write 2 Bytes of data to scratchpad
Reset pulse
Presence pulse
Issue skip ROM command
Issue read scratchpad command
Read TA1, beginning offset = 6
Read TA2, address = 0026h
Read E/S, ending offset = 7, flags = 0
Read scratchpad data and verify
Reset pulse
Presence pulse
Issue skip ROM command
Issue copy scratchpad command
TA1
TA2 AUTHORIZATION CODE
E/S
Reset pulse
Presence pulse
Issue skip ROM command
Issue read memory command
TA1, beginning offset = 6
TA2, address = 0000h
RX
Read entire memory
TX
RX
Reset pulse
Presence pulse, done
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1993 | 1kb/4kb Memory iButton |
| DS1992L-F5 | 1kbit/4kbit Memory iButtonTM DS1994 4-kbit Plus Time Memory iButtonTM |
| DS21349DK | T1/J1 Line Interface Unit Design Kit |
| DS2149DK | T1/J1 Line Interface Unit Design Kit |
| DS21349 | 3.3V T1/J1 Line Interface Unit |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1992_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:1Kb/4Kb Memory iButton 1024 bits of Read/Write Nonvolatile |
| DS1992L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
| DS1992L+F5 | 制造商:Maxim Integrated Products 功能描述:IC MEMORY I BUTTON 1992 |
| DS1992L-E00 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:(135.97 k) |
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