74LS670 file equivalent, 3-state 4-by-4 register file.
s For use as: Scratch pad memory Buffer storage between processors Bit storage in fast multiplication designs s Separate read/write addressing permits simultaneous readin.
These register files are organized as 4 words of 4 bits each, and separate on-chip decoding is provided for addressing the four word locations to either write-in or retrieve data. This permits writing into one location, and reading from another word .
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