Encyclopedia Entry: 74ACT2708PC

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Digital Logic Multiplexer
• Characteristics: High-speed, low-power consumption, multiple input/output channels
• Package: DIP (Dual In-line Package)
• Essence: The 74ACT2708PC is a multiplexer IC that allows the selection of one out of eight data inputs to be routed to a single output line.
• Packaging/Quantity: The 74ACT2708PC is typically sold in packs of 25 units.

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: 6ns (typical)
• Input Capacitance: 3pF (typical)
• Output Current: ±24mA (maximum)

Detailed Pin Configuration

The 74ACT2708PC has a total of 16 pins, which are assigned as follows:

1. A0: Data Input 0
2. A1: Data Input 1
3. A2: Data Input 2
4. A3: Data Input 3
5. A4: Data Input 4
6. A5: Data Input 5
7. A6: Data Input 6
8. A7: Data Input 7
9. GND: Ground
10. Y: Output
11. S0: Select Input 0
12. S1: Select Input 1
13. S2: Select Input 2
14. OE: Output Enable
15. VCC: Supply Voltage
16. NC: No Connection

Functional Features

• The 74ACT2708PC is designed to handle high-speed digital signals efficiently.
• It offers a wide operating voltage range, making it compatible with various systems.
• The IC features three select inputs (S0, S1, and S2) that control the data input selection.
• The output enable (OE) pin allows for tri-state operation, enabling multiple devices to share the same bus.

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick data processing. - Low power consumption makes it suitable for battery-powered devices. - Multiple input/output channels provide flexibility in system design. - Tri-state output capability enables efficient bus sharing.

Disadvantages: - Limited to selecting one out of eight data inputs, which may not be sufficient for certain applications requiring more inputs. - The DIP package may not be suitable for space-constrained designs.

Working Principles

The 74ACT2708PC operates based on the principle of digital multiplexing. The select inputs (S0, S1, and S2) determine which of the eight data inputs (A0 to A7) is routed to the output (Y). The output enable (OE) pin controls whether the output is active or in a high-impedance state.

Detailed Application Field Plans

The 74ACT2708PC finds applications in various digital systems, including but not limited to: - Data communication equipment - Industrial automation systems - Consumer electronics - Automotive electronics - Medical devices

Detailed and Complete Alternative Models

Some alternative models to the 74ACT2708PC include: - 74HC151: 8-input multiplexer with similar functionality but operates at a lower voltage range. - CD4051: Analog multiplexer/demultiplexer IC capable of switching both digital and analog signals. - SN74LS151: Another 8-input multiplexer with different characteristics and pin configuration.

These alternative models offer similar functionality but may have variations in voltage range, speed, or package type.

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