DS1742 - Y2KC Nonvolatile Timekeeping RAM

Dallas

The DS1742 by Dallas is a Y2KC Nonvolatile Timekeeping RAM. Below is the official datasheet preview.

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DS1742 Y2KC Nonvolatile Timekeeping RAM by Dallas - Datasheet Preview — Official preview page of the **DS1742** Y2KC Nonvolatile Timekeeping RAM datasheet (Dallas).

Datasheet Details

Part number	DS1742
Manufacturer	Dallas
File Size	163.48 KB
Description	Y2KC Nonvolatile Timekeeping RAM
Datasheet	DS1742_Dallas.pdf
Additional preview pages of the DS1742 datasheet.

DS1742 Product details

Description

A0-A10 CE OE WE VCC GND DQ0-DQ7 - Address Inputs - Chip Enable - Output Enable - Write Enable - Power Supply Input - Ground - Data Input/Outputs ORDERING INFORMATION DS1742-XXX (5V) -70 -100 70 ns access 100 ns access DS1742W-XXX (3.3V) -120 120 ns access -150 150 ns access DESCRIPTION The DS1742 is a full function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) and 2k x 8 non-volatile static RAM.User access to all registers within the DS1742 is accomplished with a bytewide in

Features

Integrated NV SRAM, real time clock, crystal, power-fail control circuit and lithium energy source Clock registers are accessed identical to the static RAM. These registers are resident in the eight top RAM locations Century byte register Totally nonvolatile with over 10 years of operation in the absence of power BCD coded century, year, month, date, day, hours, minutes, and seconds with automatic leap year compensation valid up to the year 2100 Battery voltage level indicator flag Power-fail wr.

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Published: Aug 15, 2005 |