DS1746-70IND+

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

* 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 with Over 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% VCC Power Supply Tolerance * Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time * DIP Module Only Standard JEDEC Byte-Wide 128k x 8 Static RAM Pinout * PowerCap Module Board Only * Surface Mountable Package for Direct * Connection to PowerCap Containing * Battery and Crystal * Replaceable Battery PowerCap * Power-On Reset Output Pin-for-Pin Compatible with Other Densities of DS174xP Timekeeping RAM * Also Available in Industrial Temperature Range: -40°C to +85°C