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DS1985

16-kbit Add-Only iButton

iButtonDESCRIPTION TheDS198516-kbitAdd-OnlyiButtonisaruggedread/writedatacarrierthatidentifiesandstoresrelevantinformationabouttheproductorpersontowhichitisattached.Thisinformationcanbeaccessedwithminimalhardware,forexampleasingleportpinofamicrocontroll

DS1985

16Kb Add-Only iButton

iButtonDESCRIPTION TheDS198516KbAdd-OnlyiButtonisaruggedread/writedatacarrierthatidentifiesandstoresrelevantinformationabouttheproductorpersontowhichitisattached.Thisinformationcanbeaccessedwithminimalhardware,forexampleasingleportpinofamicrocontroller.

DS1985

iButton 16K位只添加; ? 16384位電可編程只讀存儲(chǔ)器(EPROM)通過(guò)一個(gè)信號(hào)加上地線即可進(jìn)行經(jīng)濟(jì)實(shí)惠的通信\n\n? EPROM分為64個(gè)256位頁(yè)，用于隨機(jī)訪問(wèn)分包數(shù)據(jù)記錄\n\n? 每個(gè)存儲(chǔ)器頁(yè)都可以受到永久寫(xiě)保護(hù)，以防止篡改\n\n? 器件是“僅添加”存儲(chǔ)器，可以在不干擾現(xiàn)有數(shù)據(jù)的情況下將附加數(shù)據(jù)編程到EPROM中\(zhòng)n\n? 利用此架構(gòu)，軟件可以通過(guò)將舊頁(yè)面替換為新編程的頁(yè)面來(lái)修補(bǔ)數(shù)據(jù)\n\n? 將控制、地址、數(shù)據(jù)、電源和編程信號(hào)減少到單個(gè)數(shù)據(jù)引腳\n\n? 8位系列代碼規(guī)定了DS1985與讀取器的通信要求\n\n? 在2.8V至6.0V的寬電壓范圍內(nèi)讀?。?40°C至+85°C）；編程范圍為11.5V至12.0V（-40°C至+85°C）;

iButton? 16Kb“僅添加”(DS1985)是一款堅(jiān)固耐用的讀/寫(xiě)數(shù)據(jù)載體，可識(shí)別和存儲(chǔ)與其所連接的產(chǎn)品或人員相關(guān)的信息。只需很少的硬件即可訪問(wèn)此信息：例如，微控制器的單個(gè)端口引腳。DS1985由工廠印刻注冊(cè)編碼組成，其中包括唯一的48位序列號(hào)、8位CRC和8位系列代碼(0BH)加上用戶可編程的16Kb EPROM。DS1985的編程和讀取功能完全來(lái)自1-Wire通信線路。數(shù)據(jù)通過(guò)1-Wire協(xié)議進(jìn)行串行傳輸，該協(xié)議只需要一根數(shù)據(jù)線和一個(gè)接地回路。如果需要，整個(gè)器件可以進(jìn)行編程，然后進(jìn)行寫(xiě)保護(hù)。或者，可以對(duì)器件進(jìn)行多次編程，每次對(duì)器件進(jìn)行后續(xù)編程時(shí)，都會(huì)將新數(shù)據(jù)附加到現(xiàn)有數(shù)據(jù)，但不會(huì)覆蓋現(xiàn)有數(shù)據(jù)。注：各個(gè)位只能從邏輯1更改為邏輯0，絕不能從邏輯0更改為邏輯1。還包括一項(xiàng)規(guī)定，用于指示數(shù)據(jù)的某個(gè)頁(yè)或多個(gè)頁(yè)不再有效，并且已替換為現(xiàn)在駐留在替代頁(yè)地址處的新數(shù)據(jù)或更新版數(shù)據(jù)。通過(guò)這種頁(yè)地址重定向，軟件可以修補(bǔ)數(shù)據(jù)并增強(qiáng)器件作為獨(dú)立數(shù)據(jù)庫(kù)的靈活性。每個(gè)DS1985均有工廠印刻的48位序列號(hào)作為唯一標(biāo)識(shí)，確保產(chǎn)品可追溯。堅(jiān)固耐用的MicroCan封裝能夠耐受惡劣的應(yīng)用環(huán)境，例如污垢、濕氣和沖擊等。其緊湊的按鈕形外形可與杯形插座自動(dòng)對(duì)齊，因此無(wú)論是操作人員還是自動(dòng)設(shè)備，都能夠輕松使用DS1985。使用配件，DS1985可以安裝在印刷電路板、塑料鑰匙扣、帶照片的胸牌、身份識(shí)別手環(huán)和許多其他物體上。應(yīng)用包括在制品跟蹤、電子導(dǎo)游、訪問(wèn)控制、校準(zhǔn)常數(shù)存儲(chǔ)和借記令牌。\n\n

DS1985-F3

16-kbit Add-Only iButton

iButtonDESCRIPTION TheDS198516-kbitAdd-OnlyiButtonisaruggedread/writedatacarrierthatidentifiesandstoresrelevantinformationabouttheproductorpersontowhichitisattached.Thisinformationcanbeaccessedwithminimalhardware,forexampleasingleportpinofamicrocontroll

DS1985-F5

16-kbit Add-Only iButton

iButtonDESCRIPTION TheDS198516-kbitAdd-OnlyiButtonisaruggedread/writedatacarrierthatidentifiesandstoresrelevantinformationabouttheproductorpersontowhichitisattached.Thisinformationcanbeaccessedwithminimalhardware,forexampleasingleportpinofamicrocontroll

DS1985U

UniqueWare iButton器件; \n? 1024 bits or 64kbits electrically programmable read only memory (EPROM) communicates with the economy of one signal plus ground \n? Unique, factory lasered and tested 64-bit registration number (8-bit family code, 36-bit serialization, 12-bit UniqueWare identifier 5E7h, 8-bit CRC tester) assures absolute traceability because no two parts are alike \n? EPROM partitioned into 256-bit pages for randomly accessing packetized data records \n? Each memory page can be permanently write-protected to prevent tampering \n? Device is an 'add only' memory where additional data can be programmed into EPROM without disturbing existing data \n? Reduces control, address, data, power and programming signals to a single pin \n? 8-bit family code specifies device communications requirements to reader \n? Presence detector acknowledges when reader first applies voltage \n? Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C;

UniqueWare? iButton? devices (DS1982U/DS1985U) are factory-programmed versions of the iButton Add-Only devices, DS1982 (1024 bit) and the DS1985 (16Kb) respectively. They differ from the regular devices in their custom ROM family codes (see Ordering Information) and the UniqueWare Identifier 5E7h in place of the upper 12 bits of the standard serialization field. For technical details on the devices, refer to the DS1982 and DS1985 data sheets.\n UniqueWare Add-Only iButton devices are only available preprogrammed with customer-specific and write-protected data. UniqueWare data fills at least one but no more than the first two pages of a device, depending on the length of the customer-supplied data.\n UniqueWare devices are only available to existing customers. New data patterns are no longer accepted. The minimum order quantity (MOQ) is 34,000 pieces with higher quantities available in multiples of 17,000 pieces. UniqueWare iButton devices can only be purchased in bulk form, delivered in bags. The shipment quantity can be plus or minus 10% of the order quantity. Only the quantity shipped will be billed.

DS1985-F3+

包裝：管件 類別：存儲(chǔ)卡，模塊 專用 描述：IBUTTON 16KBIT ADD-ONLY F3

DS1985-F5+

包裝：管件 類別：存儲(chǔ)卡，模塊 專用 描述：IBUTTON 16KBIT ADD-ONLY F5