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SN74LS299DWRE4
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SN74LS299DWRE4

Product Overview

  • Category: Integrated Circuit
  • Use: Data Storage and Shift Register
  • Characteristics: High-speed, Low-power, TTL Logic
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: 8-bit Universal Shift/Storage Register
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 4.75V to 5.25V
  • Operating Temperature Range: -40°C to +85°C
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Clock Frequency: 33 MHz
  • Number of Bits: 8
  • Logic Family: LS-TTL

Detailed Pin Configuration

The SN74LS299DWRE4 has a total of 20 pins. The pin configuration is as follows:

  1. SER (Serial Data Input)
  2. CLK (Clock Input)
  3. G (Output Enable)
  4. QH' (Serial Data Output)
  5. QH (Serial Data Output)
  6. DS0 (Parallel Data Input)
  7. DS1 (Parallel Data Input)
  8. DS2 (Parallel Data Input)
  9. DS3 (Parallel Data Input)
  10. DS4 (Parallel Data Input)
  11. DS5 (Parallel Data Input)
  12. DS6 (Parallel Data Input)
  13. DS7 (Parallel Data Input)
  14. MR (Master Reset)
  15. VCC (Supply Voltage)
  16. GND (Ground)
  17. QA (Parallel Data Output)
  18. QB (Parallel Data Output)
  19. QC (Parallel Data Output)
  20. QD (Parallel Data Output)

Functional Features

  • Universal shift register with parallel load capability
  • Serial data input for shifting data into the register
  • Parallel data inputs for loading data into the register
  • Clock input for synchronizing the shifting operation
  • Output enable control for enabling/disabling the outputs
  • Master reset input for resetting the register to a known state

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing - Low-power consumption for energy-efficient applications - Versatile functionality with both serial and parallel data handling capabilities

Disadvantages: - Limited number of bits (8) may not be sufficient for certain applications requiring larger data storage capacity - Requires external components for proper operation, such as clock signal source and power supply

Working Principles

The SN74LS299DWRE4 is an 8-bit universal shift/storage register. It can operate in two modes: serial or parallel. In the serial mode, data is shifted into the register bit by bit through the SER pin using the CLK input as a clock source. The parallel mode allows for loading data in parallel through the DS0-DS7 pins. The register can be reset to a known state using the MR pin.

Detailed Application Field Plans

The SN74LS299DWRE4 is commonly used in various applications that require data storage and shifting capabilities. Some of the typical application fields include:

  1. Serial-to-parallel data conversion
  2. Data buffering and temporary storage
  3. Data synchronization and timing control
  4. Shift register-based counters and sequencers
  5. Data communication systems
  6. Microcontroller and microprocessor interfacing

Detailed and Complete Alternative Models

  1. SN74HC299N - 8-Bit Universal Shift/Storage Register, DIP package
  2. CD4094BE - 8-Stage Shift-and-Store Bus Register, DIP package
  3. 74HC595 - 8-Bit Serial-In, Parallel-Out Shift Register, SOIC package
  4. CD4021BE - 8-Stage Static Shift Register, DIP package
  5. SN74LS164N - 8-Bit Serial-In, Parallel-Out Shift Register, DIP package

These alternative models offer similar functionality and can be used as substitutes for the SN74LS299DWRE4 in various applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN74LS299DWRE4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of SN74LS299DWRE4:

  1. Question: What is SN74LS299DWRE4?
    Answer: SN74LS299DWRE4 is a 8-bit universal shift/storage register with 3-state outputs, commonly used in digital systems.

  2. Question: What is the operating voltage range for SN74LS299DWRE4?
    Answer: The operating voltage range for SN74LS299DWRE4 is typically between 4.75V and 5.25V.

  3. Question: What is the maximum clock frequency supported by SN74LS299DWRE4?
    Answer: SN74LS299DWRE4 can support clock frequencies up to 33 MHz.

  4. Question: How many data inputs does SN74LS299DWRE4 have?
    Answer: SN74LS299DWRE4 has 8 data inputs (D0-D7).

  5. Question: Can SN74LS299DWRE4 be used as a parallel-to-serial converter?
    Answer: Yes, SN74LS299DWRE4 can be used as a parallel-to-serial converter by connecting the parallel data inputs (D0-D7) and using the serial output (QH').

  6. Question: Does SN74LS299DWRE4 have 3-state outputs?
    Answer: Yes, SN74LS299DWRE4 has 3-state outputs, which means they can be disabled to allow multiple devices to share a common bus.

  7. Question: What is the purpose of the shift/load input (SH/LD) in SN74LS299DWRE4?
    Answer: The shift/load input (SH/LD) determines whether the device operates in shift mode or load mode. When SH/LD is high, it operates in shift mode, and when it is low, it operates in load mode.

  8. Question: Can SN74LS299DWRE4 be cascaded to increase the number of bits?
    Answer: Yes, multiple SN74LS299DWRE4 devices can be cascaded together to increase the number of bits in the shift register.

  9. Question: What is the typical power consumption of SN74LS299DWRE4?
    Answer: The typical power consumption of SN74LS299DWRE4 is around 40mW.

  10. Question: Is SN74LS299DWRE4 suitable for high-speed applications?
    Answer: While SN74LS299DWRE4 can support clock frequencies up to 33 MHz, it is not typically recommended for high-speed applications. For higher speeds, consider using faster shift register ICs.

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