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  • 26.Mar.19 | Mainstream Innovations, Inc - Sales Rep responded same day getting all my requirements and provided two source quotes.Very pleased to be working with this organization.
  • 14.Feb.19 | Erchonia - Purchased this/these parts previously with Jim Z. and just came back because he is a pleasure to do business with.
  • 03.Jan.19 | Barfield - Great customer support.
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DS1557 Timekeeping RAM

DS1557 Timekeeping RAM Series Datasheet

The DS1557 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and 512k x 8 nonvolatile static RAM. User access to all registers within the DS1557 is accomplished with a byte-wide interface.


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DS1557P-100 DS1557P-70 DS1557P-70IND DS1557WP-120
DS1557WP-120IND DS1557WP-150

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