The SSTV16859 is a dual output 13-bit register designed for use with 184 and 232 pin DDR-1 memory modules. The device has a differential input clock, SSTL-2 compatible data inputs and a LVCMOS compatible RESET input.
Datasheets by Manufacturer
SSTV16859 — Philips Semiconductors — 2.5 V 13-bit to 26-bit SSTL_2 registered buffer