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參數(shù)資料
| 型號： | DS2437 |
| 英文描述： | Smart Battery Monitor |
| 中文描述： | 智能電池監(jiān)視器 |
| 文件頁數(shù)： | 19/31頁 |
| 文件大?。?/td> | 1215K |
| 代理商： | DS2437 |
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DS2437
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8.
The bus master writes a 0-bit. This deselects ROM1 leaving ROM4 as the only device still connected.
9.
The bus master reads the remainder of the ROM bits for ROM4 and continues to access the part if
desired. This completes the first pass and uniquely identifies one part on the 1-Wire bus.
10.
The bus master starts a new ROM search sequence by repeating steps 1 through 7.
11.
The bus master writes a 1-bit. This decouples ROM4, leaving only ROM1 still coupled.
12.
The bus master reads the remainder of the ROM bits for ROM1 and communicates to the underlying
logic if desired. This completes the second ROM search pass, in which another of the ROMs was
found.
13.
The bus master starts a new ROM search by repeating steps 1 through 3.
14.
The bus master writes a 1-bit. This deselects ROM1 and ROM4 for the remainder of this search pass,
leaving only ROM2 and ROM3 coupled to the system.
15.
The bus master executes two read time slots and receives two 0s.
16.
The bus master writes a 0-bit. This decouples ROM3, and leaving only ROM2.
17.
The bus master reads the remainder of the ROM bits for ROM2 and communicates to the underlying
logic if desired. This completes the third ROM search pass, in which another of the ROMs was found.
18.
The bus master starts a new ROM search by repeating steps 13 through 15.
19.
The bus master writes a 1-bit. This decouples ROM2, leaving only ROM3.
20.
The bus master reads the remainder of the ROM bits for ROM3 and communicates to the underlying
logic if desired. This completes the fourth ROM search pass, in which another of the ROMs was
found.
Note that the bus master learns the unique ID number (ROM data pattern) of one 1-Wire device on each
ROM Search operation. The time required to derive the part’s unique ROM code is:
960
μ
s + (8 + 3 x 64) 61
μ
s = 13.16 ms
The bus master is therefore capable of identifying 75 different 1-Wire devices per second.
MEMORY COMMAND FUNCTIONS
The following command protocols are summarized in Table 6, and by the flowchart of Figure 6.
Write Scratchpad [4Ehxxh]
This command writes to the scratchpad page xxh of the DS2437. The entire 8-byte scratchpad space may
be written, but all writing begins with the byte present at address 0 of the selected scratchpad. After
issuing this command, the user must send the page number of the scratchpad to be written; then the user
may begin writing data to the DS2437 scratchpad. Writing may be terminated at any point by issuing a
reset. Valid page numbers for writing are 00h-07h.
Read Scratchpad [BEhxxh]
This command reads the contents of the scratchpad page xxh on the DS2437. After issuing this command,
the user must send the page number of the scratchpad to be read, and then may begin reading the data,
always beginning at address 0 of the selected scratchpad. The user may read through the end of the
scratchpad space (byte 07h), with any reserved data bits reading all logic 1s and after which the data read
will be all logic 1s. If not all locations are to be read, the master may issue a reset to terminate reading at
any time. Valid page numbers are 00h - 07h.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2438 | Smart Battery Monitor |
| DS2438Z | Smart Battery Monitor |
| DS2442 | Battery Management |
| DS2501 | 1A VERY LOW DROPOUT VOLTAGE REGULATORS |
| DS2502 | 1 kbit Add-Only Memory |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2437K | 制造商:Maxim Integrated Products 功能描述:EVALUATION KIT BATTERY MONITO |
| DS2437S | 功能描述:IC MONITOR SMART BATTERY 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| DS2437S/T&R | 制造商:Maxim Integrated Products 功能描述:SMART BATTERY MONITOR 16SSOP T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 16-SSOP |
| DS2437S/T&R/ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS2437S/T&R | 功能描述:IC MONITOR SMART BATTERY 16-SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
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