Found 6 alternatives for DS1314+ by Rochester Electronics, LLC. Memory Controllers — 8-DIP (0.300", 7.62mm).
IC CONTROLLER CHIP NV 8-DIP
IC SRAM NONVOLATILE CNTRLR 8DIP
IC CONTROLLER NV BW & RST 8-DIP
IC CONTROLLER CHIP NV IND 8-DIP
IC CNTRLR NVRAM 8-DIP
IC CNTRLR NVRAM 8-DIP