DM74ALS1008AN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate
• Characteristics: High-speed, TTL compatible, 8-input NAND gate
• Package: DIP (Dual In-line Package)
• Essence: Performs logical NAND operation on 8 inputs
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Manufacturer: Fairchild Semiconductor
• Technology: Advanced Low Power Schottky (ALS)
• Logic Family: ALS
• Logic Type: NAND Gate
• Number of Inputs: 8
• Input Voltage: 2.0V - 5.5V
• Propagation Delay: 7ns (typical)
• Operating Temperature: -55°C to +125°C
• Supply Voltage: 4.75V - 5.25V
• Output Current: -0.4mA to 24mA
• Pin Count: 14

Detailed Pin Configuration

1. GND (Ground)
2. A Input 1
3. B Input 2
4. C Input 3
5. D Input 4
6. E Input 5
7. F Input 6
8. G Input 7
9. H Input 8
10. Y Output
11. NC (No Connection)
12. NC (No Connection)
13. VCC (Positive Supply Voltage)
14. GND (Ground)

Functional Features

• Performs logical NAND operation on 8 inputs
• High-speed operation suitable for time-critical applications
• Compatible with TTL (Transistor-Transistor Logic) voltage levels
• Provides a single output that is the logical complement of the NAND operation result

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient processing of logic operations
• Wide operating temperature range enables usage in various environments
• TTL compatibility ensures easy integration with existing systems
• Compact DIP package facilitates easy installation and replacement

Disadvantages

• Limited number of inputs (8) may not be sufficient for complex logic operations
• Requires external pull-up resistors for proper operation in some applications
• Power consumption is relatively higher compared to newer logic families

Working Principles

The DM74ALS1008AN is an 8-input NAND gate that performs the logical NAND operation on its inputs. It utilizes Advanced Low Power Schottky (ALS) technology, which provides high-speed operation while maintaining compatibility with TTL voltage levels. The gate consists of multiple transistors and resistors arranged in a specific configuration to achieve the desired logic function.

When all inputs are high (logic level 1), the output of the gate becomes low (logic level 0). If any of the inputs is low (logic level 0), the output remains high. This behavior follows the truth table of a NAND gate, where the output is the logical complement of the AND operation result.

Detailed Application Field Plans

The DM74ALS1008AN can be used in various applications that require logical NAND operations on multiple inputs. Some potential application fields include:

1. Digital signal processing systems
2. Arithmetic and logic units
3. Data encryption and decryption circuits
4. Memory address decoding
5. Control systems and automation
6. Communication systems
7. Microprocessor-based systems
8. Industrial electronics

Detailed and Complete Alternative Models

1. SN74ALS1008N - Texas Instruments
2. MC74ALS1008N - ON Semiconductor
3. CD74ALS1008M - Texas Instruments
4. HD74ALS1008P - Renesas Electronics
5. 74ALS1008 - NXP Semiconductors

These alternative models offer similar functionality and can be used as replacements for the DM74ALS1008AN in various applications.

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