DS1556 - Y2K-Compliant Timekeeping RAM

Dallas Semiconducotr

The DS1556 by Dallas Semiconducotr is a Y2K-Compliant Timekeeping RAM. Below is the official datasheet preview.

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DS1556 Y2K-Compliant Timekeeping RAM by Dallas Semiconducotr - Datasheet Preview — Official preview page of the **DS1556** Y2K-Compliant Timekeeping RAM datasheet (Dallas Semiconducotr).

Datasheet Details

Part number	DS1556
Manufacturer	Dallas Semiconducotr
File Size	206.26 KB
Description	Y2K-Compliant Timekeeping RAM
Datasheet	DS1556_DallasSemiconducotr.pdf
Additional preview pages of the DS1556 datasheet.

DS1556 Product details

Description

A0 A16 - Address Input DQ0 DQ7 IRQ/FT RST CE OE WE - Data Input/Outputs - Interrupt, Frequency Test Output (Open Drain) - Power-On Reset Output (Open Drain) - Chip Enable - Output Enable - Write Enable VCC - Power Supply Input GND - Ground N.C.- No Connection X1, X2 VBAT - Crystal Connection - Battery Connection ORDERING INFORMATION PART TEMP RANGE VOLTAGE (V) PIN-PACKAGE TOP MARK DS1556-70+ DS1556-70IND+ DS1556P-70+ DS1556P-70IND+ DS1556W-120+ DS155

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 Nonvolatile with Over 10 Years of Operation in the Absence of Power.
Precision Power-On Reset.
Programmable Watchdog Timer and RTC Alarm.
BCD-Coded Year, Month, Date, Day, Hours, Minutes, and.

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Other Datasheets by Dallas Semiconducotr

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Published: Sep 21, 2005 |