Maxim Integrated DS1646P
the DS1646P after the completion of the surface mount process. The PowerCap is keyed to prevent reverse insertion. The PowerCap Module Board and PowerCap are ordered separately and shipped in separate containers.| Part No. | DS1646P |
|---|---|
| Datasheet | DS1646P Download |
| Manufacturer |  Maxim Integrated |
| Description | Nonvolatile Timekeeping RAM |
| Buy | Stock & Price |
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 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 N.C. 29 WE 28 A13 27 A8 26 A9 25 A11 24 OE 23 A10 22 CE 21 DQ7 20 DQ6 19 DQ5 18 DQ4 17 DQ3 32-Pin Encapsulated Package Standard JEDEC Bytewide 128k x 8 RAM Pinout
● DS1646P Only (PowerCap Module Board) Surface Mountable Package for Direct Connection to PowerCap Containing Battery and Crystal Replaceable Battery (PowerCap) Power-Fail Output Pin-for-Pin Compatible with Other Densities of DS164xP Timekeeping RAM Underwriters Laboratories (UL) Recognized N.C.
