We have developed a 256-bit superconducting latching/SFQ hybrid (SLASH) RAM
block as the first step in developing a 16-Kbit SLASH RAM, which enables h
igh-frequency clock operation up to 10 GHz The SLASH RAM is composed of ac-
powered latching devices and de-powered SFQ devices. The 256-bit SLASH RAM
block is composed of 16x16 matrix array of vortex transitional memory cells
, SFQ-NOR decoders, latching drivers, latching sense circuits, and address
buffers. The 256-bit SLASH RAM block chips were fabricated and tested. We c
onfirmed that the 256-bit SLASH RAM block functioned successfully.