Part Number : DS1743W-70
Function : Y2K-Compliant, Nonvolatile Timekeeping RAMs
Package : DIP 28, PowerCap 34 Pin Type
Maker : Maxim Integrated
Pinouts : 
Description :
The DS1743, DS1743W-70 is a full function, year 2000-compliant (Y2KC), real-time clock / calendar (RTC) and 8k x 8 non-volatile static RAM.
Features
0. Integrated NV SRAM, Real-Time Clock, Crystal, Power-Fail Control Circuit, and Lithium Energy Source
1. Clock Registers are Accessed Identically to the Static RAM. These Registers Reside in the Eight Top RAM Locations.
2. Century Byte Register
3. Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power
4.. BCD-Coded Century, Year, Month, Date, Day, Hours, Minutes, and Seconds with Automatic Leap Year Compensation Valid through 2099
5. Low-Battery-Voltage Level Indicator Flag Power-Fail Write Protection Allows for ±10% VCC Power-Supply Tolerance
6. . Lithium Energy Source is Electrically Disconnected to Retain Freshness Until
Power is Applied for the First Time
7. DIP Module Only Standard JEDEC Bytewide 8k x 8 Static RAM Pinout
Datasheet PDF Download : 
Others datasheet of same file :
DS1743-100+, DS1743-100IND+, DS1743, DS1743-85+, DS1743P-100+
