DM74LS374N

Product Overview

Category

The DM74LS374N belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a flip-flop latch in digital electronic systems.

Characteristics

• The DM74LS374N is a D-type transparent latch with 3-state outputs.
• It operates on a wide voltage range, typically between 4.75V and 5.25V.
• This IC has a high-speed performance, making it suitable for applications requiring quick data storage and retrieval.
• It offers a low power consumption, making it energy-efficient.
• The DM74LS374N is designed to be compatible with TTL (Transistor-Transistor Logic) logic levels.

Package

The DM74LS374N is available in a 20-pin plastic dual in-line package (PDIP).

Essence

The essence of the DM74LS374N lies in its ability to store and control digital data effectively within a digital system.

Packaging/Quantity

The DM74LS374N is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 4.75V - 5.25V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage High: 2.0V (min), 0.8V (max)
• Input Voltage Low: 0.8V (min), 0.4V (max)
• Output Voltage High: 2.7V (min), 2.4V (max)
• Output Voltage Low: 0.5V (max)

Detailed Pin Configuration

The DM74LS374N has a total of 20 pins. Here is the detailed pin configuration:

1. D0: Data input 0
2. D1: Data input 1
3. D2: Data input 2
4. D3: Data input 3
5. D4: Data input 4
6. D5: Data input 5
7. D6: Data input 6
8. D7: Data input 7
9. GND: Ground
10. Q0: Output 0
11. Q1: Output 1
12. Q2: Output 2
13. Q3: Output 3
14. Q4: Output 4
15. Q5: Output 5
16. Q6: Output 6
17. Q7: Output 7
18. OE: Output Enable
19. CP: Clock Pulse
20. VCC: Supply Voltage

Functional Features

The DM74LS374N offers the following functional features:

• Transparent latch operation: The inputs (D0-D7) are directly transferred to the outputs (Q0-Q7) when the latch enable (LE) signal is high.
• 3-state outputs: The outputs can be put into a high-impedance state by activating the output enable (OE) signal, allowing multiple devices to share a common bus.
• Edge-triggered clocking: The data inputs are latched and stored on the rising edge of the clock pulse (CP) signal.

Advantages and Disadvantages

Advantages

• High-speed performance allows for quick data storage and retrieval.
• Low power consumption makes it energy-efficient.
• Compatible with TTL logic levels, ensuring compatibility with existing digital systems.
• 3-state outputs enable efficient sharing of a common bus.

Disadvantages

• Limited voltage range (4.75V - 5.25V) may restrict its use in certain applications.
• Not suitable for applications requiring non-volatile memory storage.

Working Principles

The DM74LS374N operates based on the principles of flip-flop latch circuits. When the latch enable (LE) signal is high, the data inputs (D0-D7) are transferred to the outputs (Q0-Q7). The clock pulse (CP) signal triggers the latching action, capturing the data inputs at the rising edge of the clock signal. The output enable (OE) signal controls the state of the outputs, allowing them to be either active or in a high-impedance state.

Detailed Application Field Plans

The DM74LS374N can be used in various applications, including:

1. Microprocessor systems: It can be employed as a register to store temporary data during processing.
2. Data communication systems: It can be utilized for buffering and controlling data flow between different components.
3. Memory systems: It can serve as a latch for address and control signals in memory modules.
4. Industrial automation: It can be integrated into control circuits for sequential logic operations.

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the DM