CD74ACT257M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: High-speed, low-power, 4-to-1 multiplexer
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Efficient data routing and selection
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 5.5ns (typical)
• Output Current: ±24mA
• Input Capacitance: 3pF (typical)

Detailed Pin Configuration

The CD74ACT257M has a 16-pin configuration with the following pin assignments:

1. A0: Data input A
2. A1: Data input B
3. A2: Data input C
4. A3: Data input D
5. G: Enable input
6. Y: Multiplexer output
7. B: Data input E
8. C: Data input F
9. D: Data input G
10. VCC: Positive power supply
11. Y: Multiplexer output
12. GND: Ground
13. D: Data input H
14. C: Data input I
15. B: Data input J
16. A: Data input K

Functional Features

• High-speed operation allows for efficient data selection and routing.
• Low-power consumption makes it suitable for battery-powered devices.
• Wide supply voltage range provides flexibility in various applications.
• Multiple inputs allow for versatile data selection options.
• Enable input allows for easy control of the multiplexer.

Advantages

• Fast propagation delay ensures quick data selection.
• Low power consumption extends battery life in portable devices.
• Wide supply voltage range allows for compatibility with different systems.
• Small package size saves board space and simplifies integration.

Disadvantages

• Limited number of inputs may restrict certain applications.
• Output current limitations may not be suitable for high-power applications.
• Temperature range may limit usage in extreme environments.

Working Principles

The CD74ACT257M is a 4-to-1 multiplexer that routes one of the four input data signals to the output based on the control inputs. The enable input (G) controls the operation of the multiplexer. When G is low, the multiplexer is disabled, and the output remains in a high-impedance state. When G is high, the selected input is routed to the output.

Detailed Application Field Plans

The CD74ACT257M can be used in various applications, including:

1. Data routing in digital communication systems
2. Address decoding in microcontrollers
3. Input selection in audio/video equipment
4. Signal switching in test and measurement instruments
5. Multiplexing in data acquisition systems

Detailed and Complete Alternative Models

1. SN74ACT257: Similar 4-to-1 multiplexer from Texas Instruments
2. MC74ACT257: Equivalent 4-to-1 multiplexer from ON Semiconductor
3. CD74HCT257: High-speed CMOS alternative from Texas Instruments
4. 74HC257: Standard CMOS multiplexer from NXP Semiconductors

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

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