SN74LS273DWG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Low-power Schottky TTL, Octal D-type flip-flop with clear
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The SN74LS273DWG4 is an octal D-type flip-flop with clear, designed for general-purpose storage applications in digital systems.
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• High-Level Input Voltage: 2.0V min
• Low-Level Input Voltage: 0.8V max
• High-Level Output Voltage: 2.7V min
• Low-Level Output Voltage: 0.5V max
• Maximum Operating Frequency: 33 MHz
• Propagation Delay Time: 15 ns max
• Power Dissipation: 500 mW max

Detailed Pin Configuration

The SN74LS273DWG4 has a total of 20 pins. The pin configuration is as follows:

1. CLR - Clear Input
2. D0 - Data Input 0
3. D1 - Data Input 1
4. D2 - Data Input 2
5. D3 - Data Input 3
6. D4 - Data Input 4
7. D5 - Data Input 5
8. D6 - Data Input 6
9. D7 - Data Input 7
10. GND - Ground
11. Q0 - Flip-Flop Output 0
12. Q1 - Flip-Flop Output 1
13. Q2 - Flip-Flop Output 2
14. Q3 - Flip-Flop Output 3
15. Q4 - Flip-Flop Output 4
16. Q5 - Flip-Flop Output 5
17. Q6 - Flip-Flop Output 6
18. Q7 - Flip-Flop Output 7
19. VCC - Supply Voltage
20. CLR - Clear Input

Functional Features

The SN74LS273DWG4 is a positive-edge-triggered flip-flop with a clear input. It has eight D-type flip-flops with individual clear inputs. The device operates on a supply voltage range of 4.75V to 5.25V and can handle high-speed digital signals up to 33 MHz. The clear input allows for synchronous clearing of all flip-flops, making it suitable for applications where simultaneous data storage is required.

Advantages and Disadvantages

Advantages: - Low-power consumption due to the use of Schottky TTL technology - High-speed operation up to 33 MHz - Individual clear inputs for each flip-flop allow for synchronous clearing

Disadvantages: - Limited operating voltage range (4.75V to 5.25V) - Propagation delay time of 15 ns may not be suitable for ultra-high-speed applications

Working Principles

The SN74LS273DWG4 operates based on positive-edge-triggered flip-flop principles. When a rising edge is detected on the clock input, the data present at the D inputs is transferred to the corresponding Q outputs. The clear input, when activated, clears all flip-flops simultaneously, setting their outputs to a low state.

Detailed Application Field Plans

The SN74LS273DWG4 is commonly used in various digital systems where general-purpose storage is required. Some application fields include:

1. Microcontrollers: Used for storing temporary data during program execution.
2. Data Storage Systems: Used for buffering and storing data in memory units.
3. Communication Systems: Used for storing and synchronizing data during transmission.
4. Control Systems: Used for storing control signals and status information.

Detailed and Complete Alternative Models

1. SN74LS273N: DIP (Dual In-line Package) version of the SN74LS273DWG4.
2. SN74HC273: High-speed CMOS version with similar functionality.
3. CD4013B: CMOS dual D-type flip-flop with clear input.

These alternative models offer similar functionality and can be used as replacements for the SN74LS273DWG4 in various applications.

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