74abt3284 National Semiconductor Corporation, 74abt3284 Datasheet
74abt3284
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74abt3284 Summary of contents
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... Data input to any port may also be read back to itself for byte manipulation or system self-di- agnostic purposes The 74ABT3284 is useful for interleaving data in memory applications or for use in bus-to-bus communications where variations in data word length or construction are required ...
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... Functional Description The 74ABT3284 is a bi-directional registered data-path rout- ing device which can multiplex de-multiplex four 9-bit ‘‘A- side’’ data ports (Ports onto from one 9-bit ‘‘X- side’’ port (Port X) Alternatively it can be configured for ...
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Function Tables Inputs MODE (Notes (Note 1) L Note 1 Low to High transitions of MODE SO must be immediately preceeded ...
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Function Tables (Continued) Inputs Port X Port Y LD MODE ( (H) L (H) H (Note 3) (Note 3) (Notes 2 3) (Notes 2 3) Note 1 Low ...
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Function Tables (Continued) 1st Level X Side Data Path Select Function Table Inputs SA2X(1) SA2X(0) MODE (Notes 2 3) (Notes (Note 1) ...
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Logic Diagrams Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays FIGURE 1 18-Bit Synchronous Datapath Multiplexer 11582 – 2 ...
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Logic Diagrams (Continued) Note Port C configured identical to Port A FIGURE 2 Synchronous Bus Multiplexer Note Port D configured identical to Port B FIGURE 3 Synchronous Bus Multiplexer A-X Datapath B PORT Datapath 11582 – 3 ...
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Absolute Maximum Ratings Storage Temperature b Ambient Temperature under Bias b Junction Temperature under Bias Ceramic b Plastic b V Pin Potential to Ground Pin CC Input Voltage (Note 2) Input Current (Note Voltage Applied ...
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DC Electrical Characteristics Symbol Parameter V Quiet Output Maximum Dynamic V OLP V Quiet Output Minimum Dynamic V OLV V Minimum High Level Dynamic Output Voltage OHV V Minimum High Level Dynamic Input Voltage IHD V Maximum Low Level Dynamic ...
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AC Operating Requirements Symbol Parameter t (H) Setup Time High or Low ( Data (Registered Mode) t (H) Hold Time High or Low ...
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Physical Dimensions inches (millimeters) 100-Lead Thin Quad Flatpak (TQFP) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION ...