SN74LS374N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: Octal D-Type Transparent Latch with 3-State Outputs
• Package: DIP (Dual In-Line Package)
• Essence: A latch that can store and output data in digital circuits
• Packaging/Quantity: Typically sold in packs of 10 or more

Specifications

• Supply Voltage: 4.75V to 5.25V
• High-Level Input Voltage: 2V to 7V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: 2.7V (min)
• Low-Level Output Voltage: 0.5V (max)
• Operating Temperature Range: 0°C to 70°C
• Maximum Clock Frequency: 30MHz

Detailed Pin Configuration

The SN74LS374N has a total of 20 pins, which are arranged as follows:

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. OE (Output Enable Input)
12. Q0 (Output 0)
13. Q1 (Output 1)
14. Q2 (Output 2)
15. Q3 (Output 3)
16. Q4 (Output 4)
17. Q5 (Output 5)
18. Q6 (Output 6)
19. Q7 (Output 7)
20. VCC (Positive Power Supply)

Functional Features

• Octal D-Type Transparent Latch: Allows data to be stored and output on eight separate channels.
• 3-State Outputs: The outputs can be put into a high-impedance state, allowing multiple devices to share the same bus without interference.
• Edge-Triggered Clocking: The latch captures the input data only when a clock pulse is received.

Advantages and Disadvantages

Advantages: - High-speed operation - 3-state outputs for bus sharing - Easy integration into digital circuits

Disadvantages: - Limited operating temperature range - Requires an external clock signal for proper functioning

Working Principles

The SN74LS374N operates based on the principles of flip-flops. It uses positive-edge-triggered D-type latches to store and output data. When a clock pulse is received, the latch captures the input data and holds it until the next clock pulse arrives. The 3-state outputs allow the device to be connected to a shared bus, enabling efficient data transfer between multiple devices.

Detailed Application Field Plans

The SN74LS374N is commonly used in various digital systems, including:

1. Microprocessors and microcontrollers
2. Memory units
3. Data storage devices
4. Communication systems
5. Control systems

Its ability to store and output data makes it suitable for applications that require sequential logic and data synchronization.

Detailed and Complete Alternative Models

Some alternative models that serve similar functions to the SN74LS374N include:

1. 74HC374: High-speed CMOS version with similar pin configuration and functionality.
2. CD74ACT374: Advanced CMOS version with improved performance and lower power consumption.
3. MC74LVX374: Low-voltage TTL-compatible version for use in low-power applications.

These alternatives offer different specifications and characteristics, allowing users to choose the most suitable option for their specific requirements.

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