(China (Mainland))
Product Summary
The DS1746P-070 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 nonvolatile static RAM. User access to all registers within the device is accomplished with a byte-wide interface. The DS1746P-070 information and control bits reside in the eight uppermost RAM locations. The RTC registers contain century, year, month, date, day, hours, minutes, and seconds data in 24-hour binary-coded decimal (BCD) format. Corrections for the date of each month and leap year are made automatically.
Parametrics
DS1746P-070 absolute maxing ratings: (1)Voltage Range on Any Pin Relative to Ground: -0.3V to +6.0V; (2)Storage Temperature Range EDIP: -40℃ to +85℃; PowerCap: -55℃ to +125℃v; (3)Lead Temperature (soldering, 10s): +260℃; (4)Soldering Temperature (reflow, PowerCap): +260℃.
Features
DS1746P-070 features: (1)Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit, and Lithium Energy Source; (2)Clock Registers are Accessed Identically to the Static RAM. These Registers are Resident in the Eight Top RAM Locations.; (3)Century Byte Register (i.e., Y2K Compliant); (4)Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power; (5)BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap Year Compensation Valid Up to the Year 2100; (6)Battery Voltage-Level Indicator Flag; (7)Power-Fail Write Protection Allows for ±10% VCC Power Supply Tolerance.
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