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SN74ACT1284DW
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SN74ACT1284DW

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Device
  • Characteristics: High-speed, low-power, 12-bit addressable latch/decoder/driver
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Combines a latch, decoder, and driver functions in a single chip
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Technology: Advanced CMOS logic
  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Propagation Delay: 6ns
  • Maximum Power Dissipation: 500mW

Detailed Pin Configuration

The SN74ACT1284DW has a total of 20 pins. The pin configuration is as follows:

  1. GND (Ground)
  2. A0 (Address Input 0)
  3. A1 (Address Input 1)
  4. A2 (Address Input 2)
  5. A3 (Address Input 3)
  6. A4 (Address Input 4)
  7. A5 (Address Input 5)
  8. A6 (Address Input 6)
  9. A7 (Address Input 7)
  10. A8 (Address Input 8)
  11. A9 (Address Input 9)
  12. A10 (Address Input 10)
  13. OE (Output Enable)
  14. LE (Latch Enable)
  15. CLK (Clock Input)
  16. Q0 (Output 0)
  17. Q1 (Output 1)
  18. Q2 (Output 2)
  19. Q3 (Output 3)
  20. VCC (Supply Voltage)

Functional Features

  • 12-bit addressable latch/decoder/driver
  • Latch Enable (LE) input for storing the address inputs
  • Output Enable (OE) input for enabling/disabling the outputs
  • Clock (CLK) input for synchronizing the latch operation
  • Address inputs (A0-A10) for selecting the desired output
  • Outputs (Q0-Q3) drive up to 15 LS-TTL loads

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Compact integration of latch, decoder, and driver functions - Wide operating temperature range

Disadvantages: - Limited number of outputs (4) - Requires external components for complete functionality

Working Principles

The SN74ACT1284DW combines a latch, decoder, and driver functions in a single chip. The latch enables the storage of address inputs, while the decoder decodes the selected address. The driver then drives the selected output based on the decoded address. The clock input synchronizes the latch operation, ensuring accurate data storage.

Detailed Application Field Plans

The SN74ACT1284DW is commonly used in various applications, including:

  1. Address decoding in microprocessors and microcontrollers
  2. Memory systems
  3. Data multiplexing and demultiplexing
  4. Digital communication systems
  5. Industrial automation
  6. Automotive electronics
  7. Consumer electronics

Detailed and Complete Alternative Models

  1. SN74ACT1284DWR: Same specifications and features, but available in a different package (SOIC Wide)
  2. SN74ACT1284NE4: Similar functionality, but operates at a lower voltage range (2V to 5.5V)
  3. SN74ACT1284PWR: Similar specifications, but available in a different package (TSSOP)

These alternative models provide similar functionality and can be used as substitutes for the SN74ACT1284DW in various applications.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением SN74ACT1284DW в технических решениях.

Sure! Here are 10 common questions and answers related to the application of SN74ACT1284DW:

  1. Q: What is SN74ACT1284DW? A: SN74ACT1284DW is a specific integrated circuit (IC) chip designed for various technical solutions.

  2. Q: What is the purpose of SN74ACT1284DW? A: SN74ACT1284DW is commonly used as a multiplexer/demultiplexer IC, allowing multiple inputs to be routed to a single output or vice versa.

  3. Q: What is the voltage range supported by SN74ACT1284DW? A: SN74ACT1284DW supports a voltage range of 2V to 6V, making it compatible with a wide range of applications.

  4. Q: How many input/output channels does SN74ACT1284DW have? A: SN74ACT1284DW has 8 input channels and 1 output channel.

  5. Q: Can SN74ACT1284DW handle analog signals? A: No, SN74ACT1284DW is a digital IC and can only handle digital signals.

  6. Q: What is the maximum data rate supported by SN74ACT1284DW? A: SN74ACT1284DW can handle data rates up to 100 MHz, making it suitable for high-speed applications.

  7. Q: Does SN74ACT1284DW require external power supply decoupling capacitors? A: Yes, it is recommended to use external power supply decoupling capacitors to ensure stable operation of SN74ACT1284DW.

  8. Q: Can SN74ACT1284DW be cascaded to increase the number of input/output channels? A: Yes, multiple SN74ACT1284DW ICs can be cascaded to increase the number of input/output channels.

  9. Q: What is the operating temperature range of SN74ACT1284DW? A: SN74ACT1284DW has an operating temperature range of -40°C to 85°C, allowing it to be used in various environments.

  10. Q: Are there any specific application notes or reference designs available for SN74ACT1284DW? A: Yes, Texas Instruments provides application notes and reference designs that can help with the implementation of SN74ACT1284DW in different technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and use cases. It is always recommended to refer to the datasheet and documentation provided by the manufacturer for accurate information.