CD4042BDRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: Quad D-Type Latch with 3-State Outputs
• Package: SOIC-16
• Essence: The CD4042BDRG4 is a quad D-type latch with 3-state outputs, designed for general-purpose storage applications in digital systems. It provides four independent latches with transparent inputs and complementary outputs.
• Packaging/Quantity: The CD4042BDRG4 is available in a standard SOIC-16 package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 3V to 18V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: VDD - 0.5V
• Low-Level Output Voltage: 0.1V
• Maximum Quiescent Current: 10μA
• Maximum Operating Frequency: 6MHz

Detailed Pin Configuration

The CD4042BDRG4 has a total of 16 pins, which are assigned as follows:

1. D1: Data input for latch 1
2. CP1: Clock input for latch 1
3. Q1: Complementary output for latch 1
4. Q1': Output for latch 1
5. GND: Ground
6. Q2': Output for latch 2
7. Q2: Complementary output for latch 2
8. CP2: Clock input for latch 2
9. D2: Data input for latch 2
10. Q3: Complementary output for latch 3
11. Q3': Output for latch 3
12. CP3: Clock input for latch 3
13. D3: Data input for latch 3
14. Q4': Output for latch 4
15. Q4: Complementary output for latch 4
16. CP4: Clock input for latch 4

Functional Features

• Quad D-Type Latch: The CD4042BDRG4 consists of four independent D-type latches, allowing for simultaneous storage of four separate data inputs.
• Transparent Inputs: The transparent inputs allow the data to be latched when the clock input is high, providing real-time data storage capability.
• 3-State Outputs: The complementary outputs of each latch can be put into a high-impedance state, allowing multiple devices to share a common bus without interference.

Advantages and Disadvantages

Advantages: - Simultaneous Storage: The quad design enables the storage of four separate data inputs simultaneously. - Real-Time Data Storage: The transparent inputs allow for real-time data storage when the clock input is high. - 3-State Outputs: The 3-state outputs facilitate bus sharing among multiple devices.

Disadvantages: - Limited Operating Frequency: The maximum operating frequency of 6MHz may not be sufficient for high-speed applications. - Power Consumption: The quiescent current of 10μA may contribute to power consumption in low-power applications.

Working Principles

The CD4042BDRG4 operates based on the principles of digital logic. When the clock input (CP) is high, the data input (D) is transferred to the corresponding latch output (Q). The complementary output (Q') provides the inverse of the latch output. The transparent inputs ensure that the data is latched only when the clock input is high, allowing for real-time data storage.

Detailed Application Field Plans

The CD4042BDRG4 finds applications in various digital systems where storage of multiple data inputs is required. Some potential application fields include: - Data Storage Systems - Address Decoding Circuits - Register Banks - Memory Modules

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD4042BDRG4 are: - SN74LS373: Octal D-Type Transparent Latch with 3-State Outputs - CD4013BE: Dual D-Type Flip-Flop - MC14013BCP: Dual Type "D" Flip-Flop

These alternative models can be considered based on specific requirements and compatibility with the existing system.

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