DS1243Y Datasheet (Maxim Integrated)

DS1243Y, 64K NV SRAM

PIN NAME FUNCTION 1 RST Active-Low Reset Input.

This pin has an internal pullup resistor connected to VCC.

2 A12 3 A7 4 A6 5 A5 6 A4 7 A3 8 A2 Address Inputs 9 A1 10 A0 23 A11 21 A10 24 A9 25 A8 11 DQ0 12 DQ1 13 DQ2 15 16 DQ3 DQ4 Data In/Data Out 17 DQ5 18 DQ6 19 DQ7 20 C

DS1243Y Features

* Real-Time Clock Keeps Track of Hundredths of Seconds, Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years

* 8K x 8 NV SRAM Directly Replaces Volatile Static RAM or EEPROM

* Embedded Lithium Energy Cell Maintains Calendar Operation and Retains RAM Data

* Watch Functi