DS1744P-70

Y2K兼容，非易失时钟RAM Y2K-Compliant, Nonvolatile Timekeeping RAMs

DESCRIPTION

The DS1744 is a full-function, year-2000-compliant Y2KC, real-time clock/calendar RTC and 32k x 8 NV SRAM.

FEATURES

Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit, and Lithium Energy Source

Clock Registers are Accessed Identically to the Static RAM. These Registers are Resident in the Eight Top RAM Locations.

Century Byte Register i.e., Y2K Compliant

Totally Nonvolatile withOver 10 Years of Operation in the Absence of Power

BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100

Battery Voltage-Level Indicator Flag

Power-Fail Write Protection Allows for ±10% VCCPower-Supply Tolerance

Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time

DIP Module Only