DM74ALS257 Datasheet - Fairchild Semiconductor

DM74ALS257 3-STATE Quad 1-of-2-Line Data Selector/Multiplexer

These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four 3STATE outputs that can interface directly with data lines of bus-organized systems. A 4-bit word selected from one of two sources is routed to the four outputs. The DM74ALS257 presents .

DM74ALS257 Features

* s Switching specifications at 50 pF s Switching specifications guaranteed over full temperature and VCC range s Advanced oxide-isolated, ion-implanted Schottky TTL process s Functionally and pin for pin compatible with Schottky and low power Schottky TTL counterpart s Improved AC performance over Sc

DM74ALS257_FairchildSemiconductor.pdf