DS1982U

UniqueWare iButton器件


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说明

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.

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.

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.
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关键特性

  • 1024 bits or 64kbits electrically programmable read only memory (EPROM) communicates with the economy of one signal plus ground
  • 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
  • EPROM partitioned into 256-bit pages for randomly accessing packetized data records
  • Each memory page can be permanently write-protected to prevent tampering
  • Device is an 'add only' memory where additional data can be programmed into EPROM without disturbing existing data
  • Reduces control, address, data, power and programming signals to a single pin
  • 8-bit family code specifies device communications requirements to reader
  • Presence detector acknowledges when reader first applies voltage
  • Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C
Part NumberTechnologyApplicationsMemory TypeMemory SizeUnique WareReal Time Clock
DS1982U iButtonAsset ManagementEPROM1K bitsYesNo
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Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

技术资料

参考原理图 244 性能优异的1-Wire网络驱动器

质量和环境数据

申请可靠性报告: DS1982U 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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相关资料

类型 编号 PDF 标题
参考原理图 244 性能优异的1-Wire网络驱动器
类型 编号 标题
参考电路244性能优异的1-Wire网络驱动器