CD4042BDW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: Quad D-Type Latch with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The CD4042BDW is a quad D-type latch with 3-state outputs, designed for general-purpose digital logic applications.
• Packaging/Quantity: The CD4042BDW is available in a 16-pin SOIC package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 3V to 18V
• Logic Family: CMOS
• Number of Inputs: 4
• Number of Outputs: 4
• Output Type: 3-State
• Operating Temperature Range: -55°C to +125°C
• Propagation Delay: 60ns (typical)

Pin Configuration

The CD4042BDW has a 16-pin SOIC package with the following pin configuration:

1. GND (Ground)
2. D1 (Data Input 1)
3. D2 (Data Input 2)
4. D3 (Data Input 3)
5. D4 (Data Input 4)
6. E (Enable Input)
7. Q1 (Output 1)
8. Q2 (Output 2)
9. Q3 (Output 3)
10. Q4 (Output 4)
11. /Q1 (Inverted Output 1)
12. /Q2 (Inverted Output 2)
13. /Q3 (Inverted Output 3)
14. /Q4 (Inverted Output 4)
15. VDD (Positive Power Supply)
16. NC (No Connection)

Functional Features

• Quad D-type latch with 3-state outputs
• Non-inverting and inverted outputs for each latch
• Enable input for controlling the outputs
• High noise immunity
• Wide operating voltage range
• Low power consumption

Advantages and Disadvantages

Advantages: - Versatile digital logic IC suitable for various applications - 3-state outputs allow for bus sharing and easy interfacing - Wide operating voltage range enables compatibility with different systems - Low power consumption helps in energy-efficient designs

Disadvantages: - Propagation delay may limit the speed of certain applications - Limited number of inputs and outputs compared to other ICs - Requires careful handling and proper ESD precautions during assembly and usage

Working Principles

The CD4042BDW operates as a latch, storing data at its inputs and providing the stored data at its outputs when enabled. The enable input controls the state of the latch, allowing the outputs to be either active or in a high-impedance state.

When the enable input is high, the latch is transparent, meaning the data at the inputs passes through to the outputs. When the enable input is low, the latch holds the last data it received, maintaining the outputs' state until the enable input goes high again.

Detailed Application Field Plans

The CD4042BDW can be used in various digital logic applications, including but not limited to:

1. Data storage and transfer systems
2. Address decoding circuits
3. Bus interface units
4. Control and timing circuits
5. State machine implementations
6. Multiplexers and demultiplexers

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the CD4042BDW are:

1. SN74HC373N: Octal D-Type Transparent Latch with 3-State Outputs
2. CD74HCT573E: Octal Transparent D-Type Latch with 3-State Outputs
3. MC74HC573AN: Octal D-Type Latch with 3-State Outputs

These alternative models can be considered based on specific requirements, availability, and compatibility with the overall system design.

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