CD4042BD

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: Quad D-Type Flip-Flop with Clear
• Package: 14-Pin Plastic Dual In-Line Package (PDIP)
• Essence: Reliable and versatile flip-flop IC
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 3V to 18V
• High-Level Input Voltage: 2V to VDD
• Low-Level Input Voltage: 0V to 0.8V
• High-Level Output Voltage: 90% of VDD
• Low-Level Output Voltage: 10% of VDD
• Maximum Quiescent Current: 4μA at 5V
• Maximum Operating Frequency: 16MHz

Pin Configuration

The CD4042BD has a total of 14 pins, which are assigned as follows:

1. Clock Input (CP1)
2. Data Input (D1)
3. Data Input (D2)
4. Clear Input (CLR)
5. Clock Enable Input (CE)
6. Data Input (D3)
7. Data Input (D4)
8. Ground (GND)
9. Q1 Output
10. Q2 Output
11. Q3 Output
12. Q4 Output
13. Clock Input (CP2)
14. VDD (Positive Power Supply)

Functional Features

• Quad D-Type Flip-Flop: Contains four independent D-type flip-flops with individual data inputs and outputs.
• Clear Function: The clear input (CLR) allows the user to reset all flip-flops simultaneously.
• Clock Enable Function: The clock enable input (CE) enables or disables the clock input for each flip-flop independently.
• Versatile Operation: Can be used in various digital logic applications, such as data storage, synchronization, and control.

Advantages and Disadvantages

Advantages: - Compact Design: The CD4042BD integrates four flip-flops in a single IC package, saving board space. - Versatility: Suitable for a wide range of digital logic applications. - Low Quiescent Current: Consumes minimal power when idle.

Disadvantages: - Limited Operating Frequency: Maximum operating frequency is 16MHz, which may not be sufficient for high-speed applications. - Lack of Additional Features: Does not include advanced features like preset or clock enable/disable for individual flip-flops.

Working Principles

The CD4042BD operates based on the principles of D-type flip-flops. Each flip-flop stores a single bit of data and can be controlled independently using clock and clear inputs. The clock input triggers the transfer of data from the data input to the corresponding output. The clear input resets all flip-flops simultaneously, setting their outputs to a known state.

Detailed Application Field Plans

The CD4042BD finds applications in various digital systems, including:

1. Data Storage: Used to store binary information in microcontrollers, computers, and memory modules.
2. Synchronization: Enables synchronization of signals in communication systems, ensuring proper data transmission.
3. Control Systems: Utilized in control circuits to store and manipulate control signals for devices such as motors, relays, and displays.
4. Counters and Shift Registers: Forms the building blocks for counters and shift registers, facilitating sequential data processing.

Alternative Models

For users seeking alternative options, the following ICs can be considered:

1. SN74HC175: Quad D-Type Flip-Flop with Clear, available in different package options.
2. CD4013B: Dual D-Type Flip-Flop, suitable for applications requiring fewer flip-flops.
3. MC14013B: Dual Type "D" Flip-Flop, offering similar functionality with additional features.

These alternatives provide similar functionality and can be used as substitutes based on specific requirements.

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