DS1996:iButton 64K位存储器

The iButton® 64Kb memory (DS1996) is a rugged read/write data carrier that acts as a localized database that can be easily accessed with minimal hardware. The nonvolatile memory offers a simple solution to storing and retrieving vital information pertaining to the object to which the iButton device is attached. Data is transferred serially via the 1-Wire® protocol which requires only a single data lead and a ground return. The scratchpad is an additional page that acts as a buffer when writing to memory. Data is first written to the scratchpad where it can be read back. After the data has been verified, a copy scratchpad command will transfer the data to memory. This process ensures data integrity when modifying the memory. A 48-bit serial number is factory lasered into each DS1996 to provide a guaranteed unique identity which allows for absolute traceability. The durable MicroCan package is highly resistant to environmental hazards such as dirt, moisture, and shock. Its compact button-shaped profile is self-aligning with mating receptacles, allowing the DS1996 to be easily used by human operators. Accessories permit the DS1996 to be mounted on almost any surface including plastic key fobs, photo-ID badges and printed circuit boards. Applications include access control, work-in-progress tracking, electronic travelers, storage of calibration constants, and debit tokens.

关键特性
  • 65,536 bits of read/write nonvolatile memory
  • Overdrive mode boosts communication speed to 142 kbits per second
  • 256-bit scratchpad ensures integrity of data transfer
  • Memory partitioned into 256-bit pages for packetizing data
  • Data integrity assured with strict read/write protocols
  • Operating temperature range from -40°C to +70°C
  • Over 10 years of data retention
数据手册DataSheet
语言下载文件备注
英文DS1996.pdfRev 3; 09/2009
关键参数
Part NumberTechnologyApplicationsMemory TypeMemory SizeUnique WareReal Time ClockBudgetary
Price
See Notes
DS1996iButtonAsset ManagementNV SRAM64K bitsNoNo$8.03 @1k
技术资料
质量和环境数据
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
DS1996L-F5+生产中CAN-F5,;2引脚;301mm²0°C至+70°CRoHS/无铅:无铅
DS1996.pdf DS1996
DS1996.pdf DS1996
DS1996.pdf DS1996
Understanding the DS1WM Synthesizable 1-Wire Bus Master DS1923
White Paper 5: Using 1-Wire APIs for Data Sheet Commands DS1921K
White Paper 2: Using the 1-Wire® Public Domain Kit DS9097U-S09
1-Wire File Structure DS1923
Reading and Writing 1-Wire® Devices Through Serial Interfaces DS1923
DS1996.pdf DS1996
DS1992-DS1993.pdf DS1992