DM74S280N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic
• Characteristics: High-speed, 9-bit parity generator/checker
• Package: DIP (Dual In-line Package)
• Essence: Parity generation and checking for digital systems
• Packaging/Quantity: Available in tubes of 25 units or reels of 2,500 units

Specifications

• Logic Family: TTL (Transistor-Transistor Logic)
• Supply Voltage: 5V
• Operating Temperature: -55°C to +125°C
• Propagation Delay: 10 ns (typical)
• Power Dissipation: 400 mW (max)
• Pin Count: 14

Detailed Pin Configuration

1. GND (Ground)
2. A0 (Input A0)
3. A1 (Input A1)
4. A2 (Input A2)
5. A3 (Input A3)
6. A4 (Input A4)
7. A5 (Input A5)
8. A6 (Input A6)
9. A7 (Input A7)
10. P (Parity Output)
11. C (Carry Output)
12. G1 (Enable Input)
13. G2A (Enable Input)
14. VCC (Supply Voltage)

Functional Features

• Generates odd or even parity bit for a 9-bit input data
• Checks the parity of a 9-bit input data and provides a carry output
• Supports both active-high and active-low enable inputs
• Provides reliable parity generation and checking for digital systems

Advantages and Disadvantages

Advantages: - High-speed operation - Compact DIP package for easy integration - Wide operating temperature range - Low power dissipation

Disadvantages: - Limited to 9-bit parity generation/checking - Requires external enable inputs for operation

Working Principles

The DM74S280N is a TTL integrated circuit that performs parity generation and checking. It operates on a 9-bit input data and generates an odd or even parity bit based on the input. The chip also checks the parity of the input data and provides a carry output.

The enable inputs (G1 and G2A) control the operation of the IC. When both enable inputs are high, the chip is enabled and performs the parity generation or checking. The generated parity bit is available at the P pin, while the carry output is provided at the C pin.

Detailed Application Field Plans

The DM74S280N can be used in various digital systems where parity generation and checking are required. Some potential application fields include:

1. Data transmission systems: Ensuring data integrity during transmission by adding parity bits.
2. Memory systems: Checking the integrity of stored data by verifying parity.
3. Error detection and correction systems: Identifying and correcting errors using parity information.

Detailed and Complete Alternative Models

1. SN74LS280: Similar functionality with improved speed and lower power consumption.
2. CD74HC280: CMOS version with higher noise immunity and wider supply voltage range.
3. MC74ACT280: Advanced CMOS version with faster propagation delay and lower power dissipation.

(Note: These alternative models may have different pin configurations and package types.)

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