SN74LS378NSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Storage
• Characteristics: Octal D-Type Flip-Flop with Enable
• Package: 20-pin Small Outline (SO) package
• Essence: A high-speed, low-power octal flip-flop designed for general-purpose storage applications
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 2.7V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 33 MHz
• Propagation Delay Time: 15 ns
• Power Dissipation: 500 mW

Detailed Pin Configuration

1. GND (Ground)
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. CP (Clock Pulse Input)
11. CE (Clock Enable Input)
12. OE (Output Enable Input)
13. Q0 (Flip-Flop Output 0)
14. Q1 (Flip-Flop Output 1)
15. Q2 (Flip-Flop Output 2)
16. Q3 (Flip-Flop Output 3)
17. Q4 (Flip-Flop Output 4)
18. Q5 (Flip-Flop Output 5)
19. Q6 (Flip-Flop Output 6)
20. Q7 (Flip-Flop Output 7)

Functional Features

• Octal D-Type Flip-Flop: Provides eight individual flip-flops in a single IC package
• Enable Functionality: Allows control over clocking and output enable signals
• High-Speed Operation: Suitable for applications requiring fast data storage and retrieval
• Low Power Consumption: Helps conserve energy in portable devices and battery-powered systems
• TTL-Compatible Inputs and Outputs: Ensures compatibility with other TTL logic circuits

Advantages and Disadvantages

Advantages: - Compact Design: Saves board space by integrating multiple flip-flops into a single package - Versatile Usage: Can be used in various applications requiring data storage and synchronization - Easy Integration: Compatible with existing TTL logic circuits, simplifying system design

Disadvantages: - Limited Output Current: May not be suitable for driving heavy loads directly - Propagation Delay: The delay between input changes and corresponding output updates may affect timing-sensitive applications

Working Principles

The SN74LS378NSR is an octal D-type flip-flop with enable functionality. It stores data on the rising edge of the clock pulse when the clock enable (CE) signal is active. The output enable (OE) signal controls the availability of the flip-flop outputs. When OE is low, the outputs are enabled and reflect the stored data. Conversely, when OE is high, the outputs are disabled, and the flip-flop holds its current state.

Detailed Application Field Plans

1. Data Storage Systems: The SN74LS378NSR can be used in various data storage systems, such as registers, counters, and shift registers.
2. Synchronous Logic Circuits: It is suitable for applications that require synchronized data transfer and storage, such as microprocessors and digital signal processors.
3. Control Systems: The flip-flop's enable functionality makes it useful in control systems, where precise timing and synchronization are crucial.

Detailed and Complete Alternative Models

1. SN74LS374: Octal D-Type Flip-Flop without Enable
2. SN74LS175: Quad D-Type Flip-Flop with Clear
3. SN74LS273: Octal D-Type Flip-Flop with Clear

These alternative models offer similar functionality but may have different features or pin configurations to suit specific application requirements.

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