Download the DS1646P datasheet PDF.
This datasheet also covers the DS1646 variant, as both devices belong to the same nonvolatile timekeeping ram family and are provided as variant models within a single manufacturer datasheet.
General Description
N.C.
Key Features
Integrates 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.
Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power.
BCD-Coded Year, Month, Date, Day, Hours, Minutes, and Seconds with Leap Year Compensation Valid Up to 2100.
Power-Fail Write Protection Allows for ±10% VCC Power Supply Toleran.
Full PDF Text Transcription for DS1646P (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
DS1646P. For precise diagrams, and layout, please refer to the original PDF.
19-5595; Rev 10/10 DS1646/DS1646P Nonvolatile Timekeeping RAM www.maxim-ic.com FEATURES Integrates NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit and Lit...
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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 Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power BCD-Coded Year, Month, Date, Day, Hours, Minutes, and Seconds with Leap Year Compensation Valid Up to 2100 Power-Fail Write Protection Allows for ±10% VCC Power Supply Tolerance DS1646 only (DIP Module) PIN CONFIGURATIONS N.C. A16 A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 VCC 31 A15 30
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DS1646P Datasheet
