MC74ACT259DR2G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Multiplexer/ Demultiplexer
• Characteristics: High-speed, low-power consumption
• Package: SOIC-16
• Essence: The MC74ACT259DR2G is a 8-bit addressable latch with 3-state outputs. It can be used as a multiplexer or demultiplexer depending on the configuration.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 5 ns (typical)
• Output Current: ±24 mA
• Input Capacitance: 3 pF (typical)

Detailed Pin Configuration

The MC74ACT259DR2G has a total of 16 pins. Here is the detailed pin configuration:

1. GND: Ground
2. D0: Data Input 0
3. D1: Data Input 1
4. D2: Data Input 2
5. D3: Data Input 3
6. D4: Data Input 4
7. D5: Data Input 5
8. D6: Data Input 6
9. D7: Data Input 7
10. LE: Latch Enable
11. OE: Output Enable
12. A: Address Input
13. B: Address Input
14. C: Address Input
15. VCC: Supply Voltage
16. Q: Output

Functional Features

• 8-bit addressable latch with 3-state outputs
• Can be used as a multiplexer or demultiplexer
• Latch enable and output enable control signals for flexible operation
• High-speed operation with low power consumption
• Wide operating voltage range

Advantages and Disadvantages

Advantages

• Versatile functionality as a multiplexer or demultiplexer
• High-speed operation allows for efficient data processing
• Low power consumption helps in reducing energy usage
• 3-state outputs provide flexibility in connecting multiple devices

Disadvantages

• Limited number of address inputs (A, B, C)
• Not suitable for applications requiring a large number of inputs/outputs

Working Principles

The MC74ACT259DR2G operates by latching the input data based on the address inputs (A, B, C). The latch enable (LE) signal controls when the data is stored in the latch. The output enable (OE) signal determines whether the outputs are active or in a high-impedance state.

When used as a multiplexer, the address inputs select one of the eight data inputs (D0-D7) to be routed to the output (Q). In demultiplexer mode, the selected address activates the corresponding output while keeping the other outputs in a high-impedance state.

Detailed Application Field Plans

The MC74ACT259DR2G finds applications in various fields, including:

1. Data communication systems
2. Digital signal processing
3. Industrial automation
4. Instrumentation and measurement equipment
5. Consumer electronics

In data communication systems, it can be used for channel selection and routing of digital signals. In digital signal processing, it enables efficient data manipulation and routing. In industrial automation, it aids in controlling and monitoring multiple devices. In instrumentation and measurement equipment, it assists in data acquisition and signal conditioning. In consumer electronics, it can be utilized for audio/video switching and control.

Detailed and Complete Alternative Models

1. SN74ACT259: Similar 8-bit addressable latch with 3-state outputs, available in DIP-16 package.
2. CD74ACT259: Comparable 8-bit addressable latch with 3-state outputs, available in SOIC-16 package.
3. 74HC259: Alternative 8-bit addressable latch with 3-state outputs, compatible with CMOS logic levels.

These alternative models offer similar functionality and can be used as substitutes for the MC74ACT259DR2G depending on specific requirements and availability.

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