74LS670.pdf 54LS670 DM54LS670 DM74LS670 TRI-STATE 4-by-4 Register Files June 1989 54LS670 DM54LS670 DM74LS670 TRI-STATE 4-by-4 Register Files General Description These register files are organized as 4 words of 4 bits each and the read time (24 ns typical) The register file has a non- and separate on-chip decoding is provided for addressing volatile readout in that data is not lost when addressed the four word locat……