SN74ALS259D

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: High-speed, TTL-compatible, 8-bit multiplexer
• Package: DIP (Dual In-line Package)
• Essence: A versatile IC that allows selection of one out of eight data inputs based on control signals
• Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

• Supply Voltage: 4.5V to 5.5V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 9ns (typical)
• Output Current: ±24mA
• Pin Count: 16

Detailed Pin Configuration

1. GND (Ground)
2. S0 (Selection Control Input)
3. S1 (Selection Control Input)
4. S2 (Selection Control Input)
5. E (Enable Input)
6. D0 (Data Input 0)
7. D1 (Data Input 1)
8. D2 (Data Input 2)
9. D3 (Data Input 3)
10. D4 (Data Input 4)
11. D5 (Data Input 5)
12. D6 (Data Input 6)
13. D7 (Data Input 7)
14. Y (Output)
15. VCC (Positive Power Supply)
16. NC (No Connection)

Functional Features

• High-speed operation allows for efficient data selection
• TTL-compatible inputs and outputs ensure compatibility with various systems
• Multiple control inputs provide flexibility in selecting the desired data input
• Enable input allows for easy activation/deactivation of the IC

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data selection - TTL compatibility ensures easy integration with existing systems - Multiple control inputs provide versatility in data selection

Disadvantages: - Limited to 8-bit data selection, may not be suitable for applications requiring larger data widths - DIP package may limit space-saving options in compact designs

Working Principles

The SN74ALS259D is a data selector/multiplexer IC that operates based on the control signals provided to its selection inputs (S0, S1, and S2). These inputs determine which of the eight data inputs (D0-D7) is selected and routed to the output pin (Y). The enable input (E) allows for activation or deactivation of the IC.

When the enable input is active (E = HIGH), the selected data input is passed through to the output. When the enable input is inactive (E = LOW), the output remains in a high-impedance state.

Detailed Application Field Plans

The SN74ALS259D can be used in various applications where data selection is required. Some potential application fields include:

1. Digital multiplexing: Selecting one out of multiple data sources for further processing.
2. Address decoding: Choosing specific memory locations based on address inputs.
3. Data routing: Directing data from different sources to specific destinations.
4. Control signal selection: Switching between different control signals based on system requirements.

Detailed and Complete Alternative Models

1. SN74ALS258D: Similar to SN74ALS259D but with inverted outputs.
2. CD74HC259E: CMOS-based 8-bit multiplexer with similar functionality.
3. MC14551B: Analog multiplexer/demultiplexer IC with additional features.

Note: This is not an exhaustive list, and there are several alternative models available from different manufacturers.

Word count: 408 words