74AC74SC – FSC

The 74AC74SC, manufactured by Fairchild Semiconductor (FSC), is a dual positive-edge-triggered D-type flip-flop integrated circuit fabricated using advanced CMOS technology. It features two independent flip-flops, each with a D (data) input, clock (CLK) input, direct set (SD) input, and direct reset (RD) input, along with complementary Q and Q outputs. The device operates from a supply voltage (VCC) range of 2V to 6V, exhibiting high noise immunity and low power consumption characteristic of the AC logic family. The 74AC74SC is packaged in a 14-pin Small Outline Integrated Circuit (SOIC) package, suitable for surface-mount assembly. Propagation delays are typically in the nanosecond range, making it suitable for high-speed synchronous and asynchronous applications such as registers, counters, and control circuits. The direct set and reset inputs allow for asynchronous control of the flip-flop outputs, overriding the clock and data inputs.