This document describes the eight-bit edge-triggered D-type flip-flops with 3-state outputs, including models such as SN54ALS574B, SN54AS574, SN54AS575, SN74ALS574B, SN74ALS575A, SN74AS574, and SN74AS575. These flip-flops are designed for bus driving applications and are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
