SN74AS258NSR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Multiplexer
• Characteristics: High-speed, low-power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: 4-line to 1-line Data Selector/Multiplexer
• Packaging/Quantity: Tape and Reel, 2500 units 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: ±6mA
• Propagation Delay Time: 9ns (typical)

Detailed Pin Configuration

The SN74AS258NSR has a total of 16 pins. The pin configuration is as follows:

1. A0 - Select Input A0
2. A1 - Select Input A1
3. A2 - Select Input A2
4. A3 - Select Input A3
5. B - Data Input B
6. C - Data Input C
7. D - Data Input D
8. GND - Ground
9. Y - Multiplexed Output Y
10. E - Enable Input
11. F - Enable Input
12. VCC - Positive Power Supply
13. NC - No Connection
14. NC - No Connection
15. NC - No Connection
16. NC - No Connection

Functional Features

The SN74AS258NSR is a 4-line to 1-line data selector/multiplexer IC. It allows the selection of one out of four input lines based on the select inputs (A0-A3). The selected input is then routed to the output pin (Y). The enable inputs (E and F) control the operation of the IC.

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Compact SOIC package - Wide operating temperature range

Disadvantages: - Limited to 4 input lines - Requires external enable control

Working Principles

The SN74AS258NSR works based on the principle of digital multiplexing. The select inputs (A0-A3) determine which input line is connected to the output pin (Y). The enable inputs (E and F) control the overall operation of the IC. When both enable inputs are high, the IC is enabled, and the selected input is passed to the output. When either or both enable inputs are low, the IC is disabled, and the output remains in a high-impedance state.

Detailed Application Field Plans

The SN74AS258NSR finds applications in various digital systems where data selection and multiplexing are required. Some potential application fields include:

1. Data communication systems
2. Digital signal processing
3. Multiplexed data buses
4. Address decoding circuits
5. Memory systems
6. Microcontroller interfacing

Detailed and Complete Alternative Models

1. SN74LS258N: Similar functionality but operates at a lower speed.
2. SN74HC258N: CMOS-based alternative with improved power efficiency.
3. CD4051B: Analog multiplexer/demultiplexer with similar pin configuration.

These alternative models provide similar functionality to the SN74AS258NSR but may have different characteristics and specifications.

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