SN74LS298D

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage and Control
• Characteristics: Quad 2-Input Multiplexer with Storage
• Package: 16-pin DIP (Dual In-line Package)
• Essence: Logic IC for multiplexing and storage operations
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±8mA
• Propagation Delay Time: 15ns (typical)
• Power Dissipation: 500mW (max)

Detailed Pin Configuration

1. S0: Select Input 0
2. S1: Select Input 1
3. I0: Data Input 0
4. I1: Data Input 1
5. I2: Data Input 2
6. I3: Data Input 3
7. G: Enable Input
8. Q0: Output 0
9. Q1: Output 1
10. Q2: Output 2
11. Q3: Output 3
12. CLR: Clear Input
13. CLK: Clock Input
14. VCC: Positive Power Supply
15. GND: Ground
16. NC: No Connection

Functional Features

• Quad 2-Input Multiplexer: Allows selection of one out of four data inputs based on select inputs.
• Storage Capability: Can store the selected input data until a clear signal is received.
• Enable Input: Enables or disables the outputs based on the enable signal.
• Clear Input: Clears the stored data when activated.
• Clock Input: Controls the timing of data selection and storage operations.

Advantages and Disadvantages

Advantages: - Compact Design: Integration of multiple functions in a single IC. - Versatility: Can be used in various applications requiring data multiplexing and storage. - Low Power Consumption: Operates within a wide supply voltage range with low power dissipation.

Disadvantages: - Limited Data Inputs: Supports only four data inputs, which may not be sufficient for certain applications requiring more inputs. - Propagation Delay: The time taken for the output to respond to changes in input signals may affect real-time applications.

Working Principles

The SN74LS298D is a quad 2-input multiplexer with storage. It operates by selecting one of the four data inputs (I0-I3) based on the select inputs (S0-S1). The selected data is then stored internally until a clear signal (CLR) is received. The enable input (G) controls the output state, enabling or disabling the outputs (Q0-Q3) accordingly. The clock input (CLK) synchronizes the timing of data selection and storage operations.

Detailed Application Field Plans

The SN74LS298D finds application in various fields such as:

1. Digital Communication Systems: Used for data multiplexing and demultiplexing in communication protocols.
2. Industrial Automation: Enables efficient control and storage of data in automated systems.
3. Computer Memory Systems: Facilitates data selection and storage in memory modules.
4. Data Processing Units: Utilized for efficient data routing and selection in processing units.
5. Instrumentation and Measurement: Enables precise data acquisition and storage in measurement devices.

Detailed and Complete Alternative Models

1. CD4051B: Analog Multiplexer/Demultiplexer IC with similar functionality.
2. MC14051B: CMOS Quad 2-Channel Analog Multiplexer/Demultiplexer IC.
3. 74HC153: Dual 4-Input Multiplexer IC with storage capability.

These alternative models provide similar functionality and can be used as substitutes for the SN74LS298D in various applications.

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