CD4043BNSRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gates
• Characteristics: Quad R/S Latch with 3-State Outputs
• Package: SOIC-16
• Essence: The CD4043BNSRE4 is a quad R/S latch with 3-state outputs, designed for general-purpose logic applications.
• Packaging/Quantity: The CD4043BNSRE4 is available in a standard SOIC-16 package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 3V to 18V
• Logic Family: CMOS
• Number of Inputs: 2 per latch
• Number of Outputs: 1 per latch
• Output Type: 3-state
• Operating Temperature Range: -55°C to +125°C

Detailed Pin Configuration

The CD4043BNSRE4 has a total of 16 pins arranged as follows:

__ __ | 1|__|16| | 2 15| | 3 14| | 4 13| | 5 12| | 6 11| | 7 10| | 8 9| ‾‾ ‾‾

Functional Features

• Quad R/S Latch: The CD4043BNSRE4 consists of four independent R/S (Reset/Set) latches, each with its own control inputs.
• 3-State Outputs: The outputs of the latch can be put into a high-impedance state using the output enable input, allowing multiple devices to share a common bus.

Advantages and Disadvantages

Advantages

• Versatile: The CD4043BNSRE4 can be used in a wide range of logic applications.
• Low Power Consumption: The CMOS technology used in the IC ensures low power consumption.
• Compact Size: The SOIC-16 package offers a compact form factor, making it suitable for space-constrained designs.

Disadvantages

• Limited Output Current: The CD4043BNSRE4 has a limited output current capability, which may restrict its use in certain high-current applications.
• Lack of Built-in Protection: The IC does not have built-in protection against overvoltage or reverse polarity, requiring external circuitry for such protection.

Working Principles

The CD4043BNSRE4 operates based on the principles of R/S latches. Each latch consists of two cross-coupled NAND gates that store and control the state of the latch. The latch can be set or reset based on the inputs provided to the control pins. The 3-state outputs allow the latch to disconnect from the output bus when not needed.

Detailed Application Field Plans

The CD4043BNSRE4 is commonly used in various digital systems and applications, including:

1. Data Storage Systems: The latch can be used to store data temporarily before it is processed or transferred to other components.
2. Address Decoding: The latch can be utilized in address decoding circuits to select specific memory locations or peripheral devices.
3. Bus Sharing: The 3-state outputs enable multiple devices to share a common bus, facilitating efficient communication between different components.
4. Control Systems: The latch can be employed in control systems to store and update control signals based on specific conditions.

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the CD4043BNSRE4. Some notable alternatives include:

1. CD4042B: Quad R/S Latch with 3-State Outputs, available in a DIP-16 package.
2. CD4044B: Quad R/S Latch with 3-State Outputs and complementary outputs, available in a SOIC-16 package.
3. CD4045B: Quad R/S Latch with 3-State Outputs and buffered outputs, available in a TSSOP-16 package.

These alternative models can be considered based on specific requirements and design constraints.

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