SN74ALS992DWRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Function
• Characteristics: High-speed, Low-power, TTL-Compatible
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: 8-bit Magnitude Comparator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Output Current: ±24mA
• Propagation Delay Time: 9ns (typical)
• Power Dissipation: 500mW (max)

Detailed Pin Configuration

The SN74ALS992DWRE4 has a total of 20 pins. The pin configuration is as follows:

1. A0: Input A0
2. A1: Input A1
3. A2: Input A2
4. A3: Input A3
5. A4: Input A4
6. A5: Input A5
7. A6: Input A6
8. A7: Input A7
9. B0: Input B0
10. B1: Input B1
11. B2: Input B2
12. B3: Input B3
13. B4: Input B4
14. B5: Input B5
15. B6: Input B6
16. B7: Input B7
17. GND: Ground
18. LT: Less Than Output
19. EQ: Equal Output
20. GT: Greater Than Output

Functional Features

The SN74ALS992DWRE4 is an 8-bit magnitude comparator that compares two 8-bit binary numbers and provides three outputs: LT (Less Than), EQ (Equal), and GT (Greater Than). It operates at high speed and low power, making it suitable for various logic functions. The TTL-compatible inputs allow easy integration with other digital circuits.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - TTL-compatible inputs - Compact SOIC package

Disadvantages: - Limited to 8-bit comparison - Requires external pull-up resistors for proper operation

Working Principles

The SN74ALS992DWRE4 compares the two 8-bit binary numbers applied to its input pins (A0-A7 and B0-B7) using internal logic circuits. It determines whether A is less than, equal to, or greater than B and generates corresponding output signals on the LT, EQ, and GT pins. The propagation delay time is minimal, ensuring fast response in real-time applications.

Detailed Application Field Plans

The SN74ALS992DWRE4 can be used in various applications that require magnitude comparison of 8-bit binary numbers. Some potential application fields include:

1. Digital Signal Processing: Comparing data values in signal processing algorithms.
2. Microcontrollers: Implementing decision-making logic based on input comparisons.
3. Data Sorting: Sorting data sets based on magnitude comparison.
4. Arithmetic Operations: Supporting arithmetic operations like addition, subtraction, etc.

Detailed and Complete Alternative Models

1. SN74LS85: 4-bit Magnitude Comparator
2. SN74HC688: 8-bit Magnitude Comparator with Enable
3. SN74F521: 8-bit Identity Comparator
4. SN74ACT8847: 8-bit Magnitude Comparator with Latch

These alternative models offer similar functionality and can be considered as substitutes for the SN74ALS992DWRE4 depending on specific requirements.

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