Source : Free On-Line Dictionary of Computing

Pipeline Burst Cache
     
         (PB Cache) A {synchronous cache} built
        from {pipelined} {SRAM}.
     
        A {cache} in which reading or writing a new location takes
        multiple {cycles} but subsequent locations can be accessed in
        a single {cycle}.  On {Pentium} systems in 1996, pipeline burst
        caches are frequently used as {secondary caches}.  The first 8
        {bytes} of data are transferred in 3 {CPU} {cycles}, and the
        next 3 8-{byte} pieces of data are transferred in one {cycle}
        each.
     
        (1996-10-13)