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DS1216 Datasheet SmartWatch RAM / SmartWatch ROM

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-6075; Rev 11/11 DS1216 SmartWatch RAM (DS1216B/C/D/H); SmartWatch ROM (DS1216E/F).

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General Description

The DS1216 SmartWatch RAM and SmartWatch ROM sockets are 600-mil-wide DIP sockets with a built-in CMOS watch function, an NV RAM controller circuit, and an embedded lithium energy source.

The sockets provide an NV RAM solution for memory sized from 2K x 8 to 512K x 8 with package sizes from 26 pins to 32 pins.

When a socket is mated with a CMOS SRAM, it provides a complete solution to problems associated with memory volatility and uses a common energy source to maintain time and date.

Key Features

  • Keeps Track of Hundredths of Seconds, Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years.
  • Converts Standard 2K x 8 Up to 512K x 8 CMOS Static RAMs into Nonvolatile Memory.
  • Embedded Lithium Energy Cell Maintains Watch Information and Retains RAM Data.
  • Watch Function is Transparent to RAM Operation.
  • Automatic Leap Year Compensation Valid Up to 2100.
  • Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the.

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