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SN74ALS1645ADWE4
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SN74ALS1645ADWE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Shift Register
  • Characteristics:
    • High-speed operation
    • Wide operating voltage range
    • Low power consumption
    • TTL compatible inputs
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: The SN74ALS1645ADWE4 is a high-speed, low-power shift register IC used for serial-to-parallel data conversion.
  • Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Number of Bits: 8
  • Logic Family: ALS
  • Supply Voltage Range: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Output Current: ±24mA
  • Propagation Delay Time: 7ns (typical)

Pin Configuration

The SN74ALS1645ADWE4 has a total of 20 pins. Here is the detailed pin configuration:

  1. SER (Serial Data Input)
  2. CLK (Clock Input)
  3. GND (Ground)
  4. QA (Parallel Output A)
  5. QB (Parallel Output B)
  6. QC (Parallel Output C)
  7. QD (Parallel Output D)
  8. QE (Parallel Output E)
  9. QF (Parallel Output F)
  10. QG (Parallel Output G)
  11. QH (Parallel Output H)
  12. VCC (Positive Power Supply)

Functional Features

  • Serial-to-parallel data conversion
  • High-speed operation allows for efficient data transfer
  • Wide operating voltage range ensures compatibility with various systems
  • Low power consumption reduces energy usage
  • TTL compatible inputs enable easy integration with other logic circuits

Advantages and Disadvantages

Advantages: - High-speed operation facilitates quick data processing - Wide operating voltage range enhances versatility - Low power consumption reduces energy costs - TTL compatible inputs simplify integration with other circuits

Disadvantages: - Limited number of bits (8) may not be sufficient for certain applications requiring larger data storage capacity - Propagation delay time (7ns) may affect real-time applications that demand faster response times

Working Principles

The SN74ALS1645ADWE4 operates based on the principle of serial-to-parallel data conversion. It receives data serially through the SER pin and shifts it into its internal register upon each clock pulse received at the CLK pin. The parallel outputs QA to QH then hold the converted data, which can be accessed simultaneously.

Detailed Application Field Plans

The SN74ALS1645ADWE4 is commonly used in various applications, including:

  1. Data communication systems
  2. Industrial automation
  3. Automotive electronics
  4. Consumer electronics
  5. Medical equipment
  6. Robotics

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the SN74ALS1645ADWE4:

  1. CD74HC164E
  2. 74HC595D
  3. SN74LS164N
  4. CD4015BE
  5. MC74HC595AN

These alternatives provide options with different logic families, package types, and specifications, allowing users to choose the most suitable option for their specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN74ALS1645ADWE4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of SN74ALS1645ADWE4 in technical solutions:

  1. Q: What is SN74ALS1645ADWE4? A: SN74ALS1645ADWE4 is a 16-bit parallel-in/serial-out shift register with output latches. It is commonly used in digital systems for data storage and transfer.

  2. Q: What is the operating voltage range of SN74ALS1645ADWE4? A: The operating voltage range of SN74ALS1645ADWE4 is typically between 4.5V and 5.5V.

  3. Q: How many input pins does SN74ALS1645ADWE4 have? A: SN74ALS1645ADWE4 has 16 input pins, allowing you to parallel-load data into the shift register.

  4. Q: Can SN74ALS1645ADWE4 be cascaded to increase the number of bits? A: Yes, SN74ALS1645ADWE4 can be cascaded by connecting the serial output of one device to the serial input of another, allowing you to increase the number of bits in the shift register.

  5. Q: What is the maximum clock frequency supported by SN74ALS1645ADWE4? A: SN74ALS1645ADWE4 can support clock frequencies up to 40 MHz.

  6. Q: Does SN74ALS1645ADWE4 have output latches? A: Yes, SN74ALS1645ADWE4 has output latches that hold the data at the outputs until new data is loaded.

  7. Q: What is the typical propagation delay of SN74ALS1645ADWE4? A: The typical propagation delay of SN74ALS1645ADWE4 is around 15 ns.

  8. Q: Can SN74ALS1645ADWE4 be used in both parallel and serial data transfer modes? A: Yes, SN74ALS1645ADWE4 can be used in both parallel and serial data transfer modes, depending on the configuration of the input pins.

  9. Q: What is the power supply current consumption of SN74ALS1645ADWE4? A: The power supply current consumption of SN74ALS1645ADWE4 is typically around 20 mA.

  10. Q: What are some common applications of SN74ALS1645ADWE4? A: SN74ALS1645ADWE4 is commonly used in applications such as data storage, shift registers, LED displays, and serial-to-parallel/parallel-to-serial conversion.

Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.