Texas Instruments
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SN74ALS870DWRE4
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SN74ALS870DWRE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Digital Logic
  • Characteristics: High-speed, low-power, octal D-type transparent latch
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Latch
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Logic Family: ALS
  • Number of Bits: 8
  • Latch Type: D-Type Transparent
  • Input Voltage: 2V to 6V
  • Output Voltage: 0V to VCC
  • Propagation Delay: 10ns (typical)
  • Operating Temperature Range: -40°C to +85°C

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. CLK (Clock Input)
  12. Q0 (Output 0)
  13. Q1 (Output 1)
  14. Q2 (Output 2)
  15. Q3 (Output 3)
  16. Q4 (Output 4)
  17. Q5 (Output 5)
  18. Q6 (Output 6)
  19. Q7 (Output 7)
  20. VCC (Power Supply)

Functional Features

  • Octal D-type transparent latch with 3-state outputs
  • Latch enable (LE) input controls the transparency of the latch
  • Clock (CLK) input controls the latching action
  • 3-state outputs allow multiple devices to be connected to a common bus

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - Compact SOIC package for space-saving designs - 3-state outputs for bus sharing

Disadvantages: - Limited voltage range (2V to 6V) - Propagation delay may affect timing-sensitive applications

Working Principles

The SN74ALS870DWRE4 is an octal D-type transparent latch that stores data based on the clock signal. When the latch enable (LE) input is high, the latch becomes transparent, allowing the data inputs (D0-D7) to pass through to the outputs (Q0-Q7). The clock (CLK) input controls the latching action, capturing the data at the inputs and holding it at the outputs until the next clock cycle.

Detailed Application Field Plans

The SN74ALS870DWRE4 is commonly used in various digital logic applications, including:

  1. Data storage and transfer systems
  2. Address decoding circuits
  3. Bus interface units
  4. Register banks
  5. Memory modules

Detailed and Complete Alternative Models

  1. SN74ALS871DWRE4 - Octal D-type transparent latch with inverted outputs
  2. SN74ALS872DWRE4 - Octal D-type transparent latch with 3-state outputs and inverted outputs
  3. SN74ALS873DWRE4 - Octal D-type transparent latch with 3-state outputs and common clock enable

These alternative models offer similar functionality but may have additional features or variations in output configurations.

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Maglista ng 10 karaniwang tanong at sagot na nauugnay sa aplikasyon ng SN74ALS870DWRE4 sa mga teknikal na solusyon

Sure! Here are 10 common questions and answers related to the application of SN74ALS870DWRE4 in technical solutions:

  1. Q: What is SN74ALS870DWRE4? A: SN74ALS870DWRE4 is a specific model of integrated circuit (IC) manufactured by Texas Instruments. It is a 10-bit transparent latch with 3-state outputs.

  2. Q: What are the typical applications of SN74ALS870DWRE4? A: SN74ALS870DWRE4 can be used in various digital systems, such as data storage, address decoding, bus interfacing, and general-purpose logic functions.

  3. Q: What is the operating voltage range for SN74ALS870DWRE4? A: The operating voltage range for SN74ALS870DWRE4 is typically between 4.5V and 5.5V.

  4. Q: How many inputs and outputs does SN74ALS870DWRE4 have? A: SN74ALS870DWRE4 has 10 inputs and 10 outputs.

  5. Q: What is the maximum clock frequency supported by SN74ALS870DWRE4? A: SN74ALS870DWRE4 can operate at a maximum clock frequency of 25 MHz.

  6. Q: Does SN74ALS870DWRE4 support 3-state outputs? A: Yes, SN74ALS870DWRE4 has 3-state outputs, which means the outputs can be disabled or put into a high-impedance state.

  7. Q: Can SN74ALS870DWRE4 be cascaded to increase the number of bits? A: Yes, multiple SN74ALS870DWRE4 ICs can be cascaded together to increase the number of bits in a system.

  8. Q: What is the power consumption of SN74ALS870DWRE4? A: The power consumption of SN74ALS870DWRE4 depends on various factors, but it typically ranges from a few milliwatts to a few watts.

  9. Q: Is SN74ALS870DWRE4 compatible with other logic families? A: SN74ALS870DWRE4 is compatible with TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic families.

  10. Q: Are there any specific precautions to consider when using SN74ALS870DWRE4? A: It is important to follow the manufacturer's datasheet and guidelines for proper handling, voltage levels, and thermal considerations to ensure reliable operation of SN74ALS870DWRE4.

Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the manufacturer's datasheet for accurate and detailed information.