SN74LS377NG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: TTL Logic, Octal D-Type Transparent Latches and Edge-Triggered Flip-Flops
• Package: DIP (Dual In-line Package)
• Essence: High-speed, low-power consumption, and reliable latch/flip-flop functionality
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

The SN74LS377NG4 is a TTL logic integrated circuit that combines octal D-type transparent latches with edge-triggered flip-flops. It operates on a supply voltage range of 4.75V to 5.25V and has a typical propagation delay of 15ns. The IC is designed to work within a temperature range of -40°C to 85°C.

Detailed Pin Configuration

The SN74LS377NG4 has a total of 20 pins, which are assigned specific functions as follows:

1. D0: Data input for flip-flop 0
2. CP0: Clock input for flip-flop 0
3. D1: Data input for flip-flop 1
4. CP1: Clock input for flip-flop 1
5. D2: Data input for flip-flop 2
6. CP2: Clock input for flip-flop 2
7. D3: Data input for flip-flop 3
8. CP3: Clock input for flip-flop 3
9. D4: Data input for flip-flop 4
10. CP4: Clock input for flip-flop 4
11. D5: Data input for flip-flop 5
12. CP5: Clock input for flip-flop 5
13. D6: Data input for flip-flop 6
14. CP6: Clock input for flip-flop 6
15. D7: Data input for flip-flop 7
16. CP7: Clock input for flip-flop 7
17. Q0: Output of flip-flop 0
18. Q1: Output of flip-flop 1
19. Q2: Output of flip-flop 2
20. Q3: Output of flip-flop 3

Functional Features

The SN74LS377NG4 offers the following functional features:

• Octal D-type transparent latches and edge-triggered flip-flops in a single IC package.
• Latch enable (LE) input allows data to be transparently transferred to the outputs when LE is high.
• Clock enable (CE) input enables or disables the clock input, allowing control over the flip-flop operation.
• Asynchronous clear (CLR) input resets all flip-flops to a low state when activated.
• Edge-triggered clock inputs ensure synchronized and reliable data storage.

Advantages and Disadvantages

Advantages: - High-speed operation suitable for time-critical applications. - Low-power consumption for energy-efficient designs. - Reliable latch and flip-flop functionality ensures accurate data storage. - Compact DIP package allows easy integration into various circuit designs.

Disadvantages: - Limited number of flip-flops (8) in a single IC package. - Requires external components for proper operation (clock, data inputs, etc.). - Not suitable for applications requiring a large number of flip-flops.

Working Principles

The SN74LS377NG4 combines octal D-type transparent latches and edge-triggered flip-flops to provide reliable data storage functionality. When the latch enable (LE) input is high, the data inputs (D0-D7) are transparently transferred to the outputs (Q0-Q3). The clock enable (CE) input controls the clock input, allowing the user to enable or disable the flip-flop operation. The asynchronous clear (CLR) input resets all flip-flops to a low state when activated.

Detailed Application Field Plans

The SN74LS377NG4 is commonly used in various digital systems and applications, including:

1. Register storage: The IC can be used to store data in registers for temporary storage or data manipulation purposes.
2. Address decoding: It can be employed in address decoding circuits to select specific memory locations or peripheral devices.
3. Data synchronization: The edge-triggered flip-flops ensure synchronized data storage, making it suitable for applications requiring precise timing.
4. Control logic: The IC can be utilized in control logic circuits to store and manipulate control signals for system operation.

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the SN74LS377NG4. Some notable alternatives include:

1. 74HC377: A CMOS-based octal D-type transparent latch and flip-flop IC with similar characteristics and pin configuration.
2. CD401