DM74ALS251SJ

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Multiplexer
• Characteristics: High-speed, TTL-compatible, 8-input multiplexer
• Package: Ceramic Dual-In-Line Package (DIP)
• Essence: Combines multiple input signals into a single output signal
• Packaging/Quantity: Typically sold in reels or tubes containing multiple units

Specifications

• Input Voltage Range: 2V to 6V
• Supply Voltage: 4.75V to 5.25V
• Operating Temperature Range: -55°C to +125°C
• Propagation Delay Time: 9ns (typical)
• Output Current: ±24mA
• Power Dissipation: 500mW (max)

Detailed Pin Configuration

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. GND: Ground
10. Y: Output
11. E: Enable
12. VCC: Supply Voltage

Functional Features

• High-speed operation allows for efficient signal processing.
• TTL compatibility ensures seamless integration with other logic circuits.
• 8-input multiplexer enables selection of one out of eight input signals.
• Enable pin allows for control over the output signal.

Advantages and Disadvantages

Advantages: - High-speed operation facilitates quick data processing. - TTL compatibility ensures compatibility with existing systems. - Versatile 8-input configuration provides flexibility in signal selection.

Disadvantages: - Limited to 8 inputs, may not be suitable for applications requiring more inputs. - Requires external enable control for proper functionality.

Working Principles

The DM74ALS251SJ is a logic multiplexer that combines multiple input signals into a single output signal. It operates by selecting one of the eight input signals based on the binary value applied to the address inputs (A0-A7). The selected input is then routed to the output pin (Y) when the enable pin (E) is active. The device operates at high speeds and is compatible with TTL logic levels.

Detailed Application Field Plans

• Data communication systems
• Digital signal processing
• Multiplexing/demultiplexing applications
• Address decoding in microprocessors
• Control circuitry in industrial automation

Detailed and Complete Alternative Models

1. SN74ALS251N: Similar 8-input multiplexer with DIP package
2. CD74ALS251E: 8-input multiplexer with smaller SOIC package
3. MC74ALS251D: 8-input multiplexer with extended temperature range

(Note: This list is not exhaustive and other alternative models may exist.)

This entry provides an overview of the DM74ALS251SJ, a high-speed 8-input multiplexer IC. It includes basic information such as its category, use, characteristics, package, and essence. Specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models are also covered.