• Medium speed operation...12 MHz (typ.) clock rate at V_DD – V_SS = 10 V
• Fully static operation
• 8 master-slave flip-flops plus input and output buffering
• 100% tested for quiescent current at 20 V
• 5-V, 10-V, and 15-V parametric ratings
• Standardized, symmetrical output characteristics
• Maximum input current of 1 µA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
• Noise margin (full package-temperature range) =
  • 1 V at V_DD = 5 V
  • 2 V at V_DD = 10 V
  • 2.5 V at V_DD = 15 V
• Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
• Applications:
  • Serial-input/parallel-output data queueing
  • Serial to parallel data conversion
  • General-purpose register

Data sheet acquired from Harris Semiconductor

 DESCRIPTION/ORDERING INFORMATION:

CD4015B consists of two identical, independent, 4-stage serial-input/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 CD4015B package, or to more than 8 stages using additional CD4015B’s is possible.

The CD4015B-series types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic package (E suffix), 16-lead small-outline packages (M, M96, MT, and NSR suffixes), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).

 link: http://focus.ti.com/docs/prod/folders/print/cd4015b.html