HD74LS91

The HD74LS91 is designed as one kind of serial-in, serialout, 8-bit shift register that is composed of eight R-S master-salve flip-flops, input gating, and a clock drive. Single-rail data and input control are gated through inputs A and B and an internal inverter to form the complementary inputs to the first bit of the shift register. Drive for the internal common clock line is provided by an inverting clock driver. This device causes these circuits to shift onformation one bit on the positive edge of an input clock pulse.

The specifications of the HD74LS91 may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. If you want to know more information such as the electrical characteristics about the HD74LS91, please download the datasheet in www.seekic.com or www.chinaicmart.com.