DS1244 Datasheet (Maxim Integrated)

DS1244, 256K NV SRAM

PIN EDIP PowerCap NAME 1 1 A14/RST 1 32 A14 2 30 A12 3 25 A7 4 24 A6 5 23 A5 6 22 A4 7 21 A3 8 20 A2 9 19 A1 10 18 A0 21 28 A10 23 29 A11 24 27 A9 25 26 A8 26 31 A13 11 16 DQ0 12 15 DQ1 13 14 DQ2 15 13 DQ3 16 12 DQ4 17 11 DQ5 18 10 DQ6 19 9 DQ7 20 8 C

DS1244 Features

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

* 32K x 8 NV SRAM Directly Replaces Volatile Static RAM or EEPROM

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

* Watch Function