CD4013B Dual D Flip-Flop Technical Summary

Overview

The CD4013B is a monolithic complementary MOS (CMOS) integrated circuit constructed with N- and P-channel enhancement mode transistors. It consists of two independent D-type flip-flops, each featuring individual data, set, reset, and clock inputs, as well as complementary Q and Q̅ outputs. The CD4013B is designed for a wide range of digital applications, including shift registers, counters, and toggle circuits. The device operates by transferring the logic level present at the D input to the Q output during the positive-going transition of the clock pulse. Set and reset operations are independent of the clock and are triggered by a high level on their respective input lines.

Features

• Wide Supply Voltage Range: Operates from 3.0V to 15V, making it suitable for various logic level applications.
• High Noise Immunity: Typical noise immunity of 0.45 V_DD, ensuring reliable operation in noisy environments.
• Low Power Consumption: CMOS technology ensures minimal power dissipation, making it ideal for battery-operated devices.
• Independent Set and Reset Inputs: Allows for asynchronous control of the flip-flop state.
• Complementary Outputs: Provides both Q and Q̅ outputs for flexible circuit design.
• TTL Compatibility: Can interface with TTL logic families when operated at appropriate supply voltages.
• Monolithic Construction: Ensures high reliability and performance consistency.

Applications

The CD4013B is widely used in digital systems for various applications, including but not limited to:

• Shift Registers: By cascading multiple flip-flops, the CD4013B can be used to construct shift registers for serial data storage and transfer.
• Counters: When configured in toggle mode (Q output connected to D input), the flip-flop can be used as a binary counter.
• Data Storage: The D flip-flop serves as a basic memory element for storing a single bit of data.
• Frequency Division: The toggle mode operation allows the CD4013B to divide the clock frequency by two.
• Pulse Synchronization: Used to synchronize asynchronous signals to a clock domain.
• Debouncing Circuits: Employed in switch debouncing applications to eliminate mechanical switch noise.

Electrical Characteristics

The following table summarizes the key electrical characteristics of the CD4013B under typical operating conditions (V_DD = 10V, T_A = 25°C unless otherwise specified):

Absolute Maximum Ratings

• Supply Voltage (V_DD): -0.5V to +18V
• Input Voltage (V_IN): -0.5V to V_DD + 0.5V
• Operating Temperature Range (T_A): -55°C to +125°C
• Storage Temperature Range (T_STG): -65°C to +150°C

DC Electrical Characteristics

• High-Level Input Voltage (V_IH): 7V (min) at V_DD = 15V
• Low-Level Input Voltage (V_IL): 3V (max) at V_DD = 15V
• High-Level Output Voltage (V_OH): 14.95V (min) at V_DD = 15V, I_OH = -0.4mA
• Low-Level Output Voltage (V_OL): 0.05V (max) at V_DD = 15V, I_OL = 0.4mA
• Input Leakage Current (I_IN): ±0.1µA (max) at V_DD = 18V
• Quiescent Supply Current (I_DD): 1µA (max) at V_DD = 18V

AC Electrical Characteristics

• Propagation Delay (t_PHL, t_PLH): 200ns (max) at V_DD = 10V, C_L = 50pF
• Clock Frequency (f_CLK): 8MHz (typ) at V_DD = 10V
• Set/Reset Pulse Width (t_W): 100ns (min) at V_DD = 10V

Package Information

The CD4013B is available in several industry-standard packages, providing flexibility for different PCB layouts and assembly processes. The following are the most common package options:

• 14-Pin PDIP (Plastic Dual In-Line Package):
  • Package Code: 14-PDIP
  • Dimensions: 19.30mm x 6.35mm x 4.57mm
  • Pin Pitch: 2.54mm
• 14-Pin SOIC (Small Outline Integrated Circuit):
  • Package Code: 14-SOIC
  • Dimensions: 8.65mm x 3.90mm x 1.50mm
  • Pin Pitch: 1.27mm
• 14-Pin TSSOP (Thin Shrink Small Outline Package):
  • Package Code: 14-TSSOP
  • Dimensions: 5.00mm x 4.40mm x 1.00mm
  • Pin Pitch: 0.65mm

Pin Configuration

The CD4013B features a 14-pin configuration with the following pinout:

• Pin 1: Q1 Output (Flip-Flop 1)
• Pin 2: Q̅1 Output (Flip-Flop 1)
• Pin 3: Clock Input 1 (Flip-Flop 1)
• Pin 4: Reset Input 1 (Flip-Flop 1)
• Pin 5: Data Input 1 (Flip-Flop 1)
• Pin 6: Set Input 1 (Flip-Flop 1)
• Pin 7: V_SS (Ground)
• Pin 8: Set Input 2 (Flip-Flop 2)
• Pin 9: Data Input 2 (Flip-Flop 2)