GENERAL DESCRIPTION
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. 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, low power Schottky, and advanced low power Schottky TTL counterpart s Improved AC performance over Schottky, low power Schottky, and advanced low power Schottky counterparts s 3-STATE buffer-type output drive bus lines directly s Expand any data input point s Multiplex dual data buses s General four functions of two variables (one variable is common) s Source programmable counters Ordering Code: Order Number DM74AS257M DM74AS257N DM74AS258M DM74AS258N Package Nu...
Fairchild Semiconductor
