



SDAS105A - JANUARY 1986 - REVISED OCTOBER 1986
The SN74ALS819 and SN74ALS29818 are 8-bit pipeline registers eachwith an on-chip shadow register. They are for use in applicationssuch as write control store and shadow register diagnostics.
The output registers of the 'ALS819 and 'ALS29818 are loaded inparallel from either the I/O port (DQ0-DQ7) or the shadow register.The shadow register of the 'ALS2981A 8 can be loaded serially or fromeither the I/O port (Y0-Y7) or the pipeline register. The 'ALS819shadow register can be loaded serially or from the I/O port(DQ0-DQ7). In addition, the 'ALS819 provides a Parity-Even (PE)output, which monitors parity of the output register. Operation ofthese devices is controlled by the Mode and SDI inputs as shown inthe function table.
The SN74ALS819 and SN74ALS29818 are characterized for operationfrom 0°C to 70°C.
View more information about generic part numbers:SN74ALS29818, SN74ALS819
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