Overview
HD74HC74 is listed in the Logic IC category. Available datasheets include documents from Renesas Technology Corp, Hitachi Semiconductor. DigiCamel provides a local PDF for online reference.
Summary
Dual D-type Flip-Flops (with Preset and Clear)
Description
The flip-flop has independent data, preset, clear, and clock inputs and Q and Q outputs. The logic level present at the data input is transferred to the output during the positive going transition to the clock pulse. Preset and clear are independent of the clock and accomplished by a low level at the appropriate input.
Source title
HD74HC74 Datasheet(PDF) - Renesas Technology Corp