SN74LS293NG4

Product Overview

Category

SN74LS293NG4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics for various applications such as counters, frequency dividers, and general-purpose logic circuits.

Characteristics

• Low power consumption
• High-speed operation
• Wide operating voltage range
• Compatibility with TTL (Transistor-Transistor Logic) inputs
• Reliable performance

Package

SN74LS293NG4 is available in a 16-pin DIP (Dual In-line Package) format.

Essence

The essence of SN74LS293NG4 lies in its ability to perform counting and frequency division functions accurately and efficiently.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of SN74LS293NG4 ICs.

Specifications

• Supply Voltage: 4.75V to 5.25V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 30 MHz
• Number of Counting Stages: 4
• Output Current: ±8 mA
• Propagation Delay: 15 ns

Detailed Pin Configuration

1. CLK (Clock Input)
2. RCO (Ripple Carry Output)
3. QD (Least Significant Bit Output)
4. QC (Second Least Significant Bit Output)
5. QB (Third Least Significant Bit Output)
6. QA (Most Significant Bit Output)
7. GND (Ground)
8. QA̅ (Inverted Most Significant Bit Output)
9. QB̅ (Inverted Third Least Significant Bit Output)
10. QC̅ (Inverted Second Least Significant Bit Output)
11. QD̅ (Inverted Least Significant Bit Output)
12. MR (Master Reset)
13. ENT (Enable Input)
14. VCC (Supply Voltage)
15. NC (No Connection)
16. VCC (Supply Voltage)

Functional Features

• Asynchronous Master Reset (MR) input for resetting the counter
• Enable (ENT) input for controlling the counting operation
• Four-bit binary counter with parallel outputs
• Ripple Carry Output (RCO) for cascading multiple counters
• Inverted outputs available for complementing the output signals

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered devices
• High-speed operation enables efficient counting and frequency division
• Wide operating voltage range allows compatibility with various systems
• TTL compatibility simplifies integration with existing logic circuits
• Reliable performance ensures accurate counting results

Disadvantages

• Limited number of counting stages (4 in this case)
• Propagation delay may affect timing-sensitive applications

Working Principles

SN74LS293NG4 operates as a synchronous counter, where the clock input (CLK) triggers the counting process. The counter advances by one on each rising edge of the clock signal. The enable input (ENT) controls whether the counter counts or remains in a static state. The master reset (MR) input resets the counter to its initial state.

Detailed Application Field Plans

SN74LS293NG4 finds applications in various fields, including: 1. Digital frequency dividers 2. Industrial automation systems 3. Communication equipment 4. Automotive electronics 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to SN74LS293NG4 are: 1. CD4029B: CMOS presettable up/down counter 2. 74HC393: High-speed CMOS dual 4-bit binary ripple counter 3. CD4518: Dual BCD up-counter

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

In conclusion, SN74LS293NG4 is a versatile integrated circuit that serves as a reliable and efficient counter for various digital applications. Its low power consumption, high-speed operation, and compatibility with TTL inputs make it a popular choice among designers. However, its limited counting stages and propagation delay should be considered in timing-sensitive applications.