DS1557 Datasheet - Dallas Semiconducotr

DS1557, 4MEG NV Y2KC Timekeeping RAM

19-5501; Rev 9/10 www.maxim-ic.com DS1557 4Meg, Nonvolatile, Y2K-Compliant Timekeeping RAM .
A0. A18 - Address Input DQ0. DQ7 IRQ/FT - Data Input/Outputs - Interrupt, Frequency Test Output (Open Drain) RST - Power-On Reset.

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Datasheet Details

Part number:

DS1557

Manufacturer:

Dallas Semiconducotr

File Size:

249.40 KB

Description:

4MEG NV Y2KC Timekeeping RAM

Features

* Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, and Lithium Energy Source
* Clock Registers are Accessed Identically to the Static RAM; These Registers Reside in the 16 Top RAM Locations
* Century Byte Register (i. e. , Y2K Compliant)
* Totally Nonvola

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DS1557 4MEG Y2KC Timekeeping RAM Dallas Semiconducotr

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