CD74FCT574
description
The CD74FCT574 is an octal, D-type, edge-triggered flip-flop that features noninverted, 3-state outputs, designed specifically for driving highly capacitive or relatively low-impedance loads. The devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
This device uses a small-geometry Bi CMOS technology. The output stage is a bination of bipolar and CMOS transistors that limits the output high level to two diode drops below VCC. This resultant lowering of output swing (0 V to 3.7 V) reduces power-bus ringing [a source of electromagnetic interference (EMI)] and minimizes VCC bounce and ground bounce and their effects during simultaneous output switching. The output configuration also enhances switching speed and is capable of sinking 48 m A.
The eight flip-flops enter data into their registers on the low-to-high transition of the clock (CLK). On the positive transition of the clock (CLK) input, the Q...
