The CSSTV32867SGKEREP from Texas Instruments is a 26-bit registered buffer Integrated Circuit with SSTL_2 compatible I/O for DDR, in a 96-LFBGA (13.5x5.5) package.
The CSSTV32852GKFREP from Texas Instruments is a registered buffer Integrated Circuit with SSTL_2 compatible I/O for DDR, in a 114-BGA MICROSTAR (16x5.5) package.