dm74as257 Fairchild Semiconductor, dm74as257 Datasheet
dm74as257
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dm74as257 Summary of contents
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... STATE 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 DM74AS257 presents true data whereas the DM74AS258 presents inverted data to minimize propagation delay time. ...
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... Logic Diagrams DM74AS257 www.fairchildsemi.com DM74AS258 2 ...
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... CCL CC Current DM74AS258 Outputs Open I Supply DM74AS257 CCZ Current DM74AS258 Note 2: The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, I (Note Note 1: The “Absolute Maximum Ratings” are those values beyond which 5 ...
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... DM74AS257 Switching Characteristics over recommended operating free air temperature range Symbol Parameter t Propagation Delay Time, PLH LOW-to-HIGH Level Output t Propagation Delay Time, PHL HIGH-to-LOW Level Output t Propagation Delay Time, PLH LOW-to-HIGH Level Output t Propagation Delay Time, PHL HIGH-to-LOW Level Output ...
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Physical Dimensions inches (millimeters) unless otherwise noted 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow Package Number M16A 5 www.fairchildsemi.com ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right ...