5 Pages, 70 KB, Original
IC SELECTOR/MUX QD 2X1 3ST 16SOP - SN74F257NSR
5 Pages, 70 KB, Original
IC SELECTOR MUX QUAD 2-1 16-SOP - SN74F257NSRE4
5 Pages, 70 KB, Original
IC DATA SELECTOR/MUX SGL 16SOP - SN74F257NSRG4