74LS670 Datasheet (Fairchild Semiconductor) - 3-STATE 4-by-4 Register File

74LS670, 3-STATE 4-by-4 Register File

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 location, simultaneously.

Four data inputs are ava

74LS670 Features

* s For use as: Scratch pad memory Buffer storage between processors Bit storage in fast multiplication designs s Separate read/write addressing permits simultaneous reading and writing s Organized as 4 words of 4 bits s Expandable to 512 words of n-bits s 3-STATE versions of DM74LS170 s Fast access t