Device identity and on-chip memory
The DS1744W-120+ is a parallel-interface real-time clock that integrates 32 KB of NVSRAM, leap-year compensation, and Y2K compliance into a single 28-pin EDIP module.
Package and board integration
Housed in a 28-lead EDIP (0.600-inch body width, 15.24 mm row spacing) with through-hole mounting — the wide DIP footprint is straightforward to hand-assemble or socket, and the module's self-contained construction (crystal, lithium cell, SRAM, and RTC logic in one package) reduces BOM count and layout risk.