dm74as258 Fairchild Semiconductor, dm74as258 Datasheet
dm74as258
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dm74as258 Summary of contents
Page 1
... 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 propa- gation delay time. This 3-STATE output feature means that n-bit (paral- leled) data selectors with up to 300 sources can be implemented for data buses ...
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... Connection Diagram Logic Diagrams DM74AS257 ©1986 Fairchild Semiconductor Corporation DM74AS257, DM74AS258 Rev. 1.2 Function Table Inputs OUTPUT Control Select HIGH Level L LOW Level X Don't Care Z High Impedance (OFF) DM74AS258 2 Output Y AS257 AS258 ...
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... IH V LOW Level Input Voltage IL I HIGH Level Output Current OH I LOW Level Output Current OL T Free Air Operating Temperature A ©1986 Fairchild Semiconductor Corporation DM74AS257, DM74AS258 Rev. 1.2 Parameter Min. Nom. 4 Rating 7V 7V 5.5V 0°C to +70°C –65°C to +150°C 75.0° ...
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... CCL DM74AS258 I Supply Current DM74AS257 CCZ DM74AS258 Note: 1. The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current ©1986 Fairchild Semiconductor Corporation DM74AS257, DM74AS258 Rev. 1.2 Conditions V 4.5V, I – 4.5V, I Max – ...
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... Output Enable Time to HIGH PZH Level t Output Enable Time to LOW PZL Level t Output Disable Time, from HIGH PHZ Level t Output Disable Time from LOW PLZ Level ©1986 Fairchild Semiconductor Corporation DM74AS257, DM74AS258 Rev. 1.2 Conditions From V 4.5V to 5.5V, Data Any pF 500 L Select Any Y ...
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... Physical Dimensions Dimensions are in millimeters unless otherwise noted. Figure 1. 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow ©1986 Fairchild Semiconductor Corporation DM74AS257, DM74AS258 Rev. 1.2 Package Number M16A 6 www.fairchildsemi.com ...
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... Physical Dimensions (Continued) Dimensions are in inches (millimeters) unless otherwise noted. Figure 2. 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide ©1986 Fairchild Semiconductor Corporation DM74AS257, DM74AS258 Rev. 1.2 Package Number N16E 7 www.fairchildsemi.com ...
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... Advance Information Formative or In Design Preliminary First Production No Identification Needed Full Production Obsolete Not In Production ©1986 Fairchild Semiconductor Corporation DM74AS257, DM74AS258 Rev. 1.2 Green FPS™ e-Series™ Power-SPM™ GTO™ PowerTrench i-Lo™ Programmable Active Droop™ ® IntelliMAX™ ...