DS1996L-F5# 64k NVRAM

Description

The DS1996 iButton is a portable data carrier that can store up to 64kbits in nonvolatile memory. It communicates with a processor using the 1-Wire protocol through a hardware port interface. The port interface provides both the physical link and handles the communication protocols that enable the processor to access iButton resources with simple commands. Other memory includes a unique, 64-bit registration number and a 256-bit scratchpad from which data can be verified before copying to memory. An overdrive mode boosts communication speed to 142kbits/second.

The DS1996 is extremely durable and can be attached to an object, person, or circuit board by means of accessories. Applications include access control, work-in-progress tracking, storage of calibration constants, and debit tokens.

Key Features

• 65,536 bits read/write nonvolatile memory
• Communication speed of 142kbits/second in overdrive mode
• 1-Wire interface
• 64-bit ROM registration number
• 256-bit scratchpad
• Data integrity assured with strict read/write protocols
• Memory partitioned into 256 256-bit pages
• Operating range -40°C to +70°C
• >10 years data retention