View ds1350w datasheet:

DS1350W 3.3V 4096k Nonvolatile SRAM with Battery Monitor www.maxim-ic.com FEATURES PIN ASSIGNMENT 10 years minimum data retention in the absence of external power Data is automatically protected during power BW 1 34 A18 A15 2 33 A17 loss A16 3 32 A14 RST 4 31 A13 Power supply monitor resets processor when VCC 5 30 A12 VCC power loss occurs and holds processor in WE 6 29 A11 OE

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BJT: SBT42 | 2SA200-Y | 2SA200-O | 2SD882-Q | 2SD882-P | 2SD882-E | 2SC945-L | 2SC945-H | 2SC4226-R23 | 2SC3357-F | 2SC3357-E | 2SC3356-R26 | 2SC3356-R24 | 2SC3356-R23 | 2SB772-Q | 2SB772-P | 2SB772-E | 2SA1015-L | 2SA1015-H | HSS8550 | HSS8050