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.
●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 First Time
● Proven Gas-Tight Socket Contacts
● Full ±10% Operating Range
● Accuracy Better Than ±1 Minute/Month at +25°C
