7.1 Overview

The CD4013B device consists of two identical, independent data-type flip-flops. Each flip-flop has independent data, set, reset, and clock inputs and Q and Q outputs. These devices are ideal for data and memory hold functions, including shift register applications, or by connecting Q output to the data input, this device is used for counter and toggle applications. The CD4013B is a positive-edge triggered device, meaning that the logic level present at the D input is transferred to the Q output during the positive-going transition of the clock pulse. Setting or resetting is independent of the clock and is accomplished by a high level on the set or reset line, respectively.

7.2 Functional Block Diagram

7.3 Feature Description

CD4013B has standardized symmetrical output characteristics and a wide operating voltage range from 3 V to
18 V with quiescent current tested at 20 V. This has a medium operation speed –t_PHL, t_PLH = 30 ns (typical) at 10 V. The operating temperature is from –55°C to 125°C.

7.4 Device Functional Modes

Table 1 lists the functional modes of the CD4013B.