19-5579; Rev 10/10 www.
maxim-ic.
com FEATURES  10 years minimum data retention in the absence of external power  Data is automatically protected during power loss  Directly replaces 2k x 8 volatile static RAM or EEPROM  Unlimited write cycles  Low-power CMOS  JEDEC standard 24-pin DIP package  Read and write access times of 100 ns  Full ±10% operating range  Optional industrial temperature range of -40°C to +85°C, designated IND NOT RECOMMENDED FOR NEW DESIGNS DS1220Y 16k Nonvolatile SRAM PIN ASSIGNMENT A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND 1 2 3 4 5 6 7 8 9 10 11 12 24 VCC 23 A8 22 A9 21 WE 20 OE 19 A10 18 CE 17 DQ7 16 DQ6 15 DQ5 14 DQ4 13 DQ3 24-Pin ENCAPSULATED PACKAGE 720...

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