Dual 4-Stage Static Shift Register

The IW4015B consists of two identical, independent, 4-stage serialinput/parallel-output registers. Each register has independent CLOCK and RESET inputs as well as a single serial DATA input. “Q” outputs are available from each of the four stages on both registers. All register stages are D-type, master-slave flip-flops. The logic level present at the DATA input is transferred into the first register stage and shifted over one stage at each positive-going clock transition. Resetting of all stages is accomplished by a high level on the reset line. Register expansion to 8 stages using one IW4015B package, or to more than 8 stages using additional IW4015B’s is possible.

• Operating Voltage Range: 3.0 to 18 V

• Maximum input current of 1 μA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C

• Noise margin (over full package temperature range):

1.0 V min @ 5.0 V supply

2.0 V min @ 10.0 V supply

2.5 V min @ 15.0 V supply