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SN74ALS191ANSRE4
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SN74ALS191ANSRE4

Product Overview

Category

SN74ALS191ANSRE4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronics for various applications such as arithmetic operations, counters, and sequential logic circuits.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with TTL (Transistor-Transistor Logic) inputs
  • Output capability to drive directly up to 15 LSTTL (Low-Power Schottky Transistor-Transistor Logic) loads

Package

SN74ALS191ANSRE4 is available in a small-outline package (SOIC) with 16 pins.

Essence

The essence of SN74ALS191ANSRE4 lies in its ability to perform efficient arithmetic and counting operations in digital circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: ALS
  • Number of Pins: 16
  • Input Type: TTL
  • Output Type: LSTTL
  • Maximum Clock Frequency: 25 MHz

Detailed Pin Configuration

  1. CLK (Clock Input)
  2. MR (Master Reset Input)
  3. CPD (Count Enable Parallel Input)
  4. P (Parallel Data Inputs)
  5. Q0-Q3 (Outputs)
  6. TC (Terminal Count Output)
  7. GND (Ground)
  8. QD (Output)
  9. QA (Output)
  10. QB (Output)
  11. QC (Output)
  12. VCC (Supply Voltage)

Functional Features

  • Synchronous parallel loading of data
  • Asynchronous master reset
  • Synchronous counting
  • Terminal count output for cascading multiple devices

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient processing of digital signals.
  • Low power consumption helps in reducing energy requirements.
  • Wide operating voltage range provides flexibility in various applications.
  • Compatibility with TTL inputs enables easy integration into existing systems.
  • Output capability to drive multiple LSTTL loads simplifies circuit design.

Disadvantages

  • Limited pin count may restrict the complexity of circuits that can be implemented.
  • Not suitable for applications requiring high-resolution or precision arithmetic operations.

Working Principles

SN74ALS191ANSRE4 is a synchronous, 4-bit binary up/down counter. It operates based on clock pulses and can count up or down depending on the control inputs. The parallel data inputs allow for loading initial values, while the terminal count output indicates when the counter reaches its maximum value. The master reset input asynchronously resets the counter to its initial state.

Detailed Application Field Plans

SN74ALS191ANSRE4 finds applications in various fields, including: 1. Digital calculators and counters 2. Industrial automation systems 3. Communication equipment 4. Automotive electronics 5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74ALS191ANSRE4 are: 1. CD74HC191E 2. MC74HC191N 3. SN74LS191N 4. CD40192BE 5. MC14019BCP

These alternatives can be considered based on specific requirements and availability.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74ALS191ANSRE4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74ALS191ANSRE4 in technical solutions:

  1. Q: What is SN74ALS191ANSRE4? A: SN74ALS191ANSRE4 is a synchronous, reversible, up/down counter IC (integrated circuit) that can be used in various technical applications.

  2. Q: What is the operating voltage range for SN74ALS191ANSRE4? A: The operating voltage range for SN74ALS191ANSRE4 is typically between 4.5V and 5.5V.

  3. Q: What is the maximum clock frequency supported by SN74ALS191ANSRE4? A: SN74ALS191ANSRE4 can support a maximum clock frequency of 25 MHz.

  4. Q: Can SN74ALS191ANSRE4 be used as a binary counter? A: Yes, SN74ALS191ANSRE4 can be used as a binary counter where it counts in binary sequence (0, 1, 10, 11, 100, etc.).

  5. Q: How many bits does SN74ALS191ANSRE4 have? A: SN74ALS191ANSRE4 is a 4-bit counter, meaning it can count up to 15 (1111 in binary).

  6. Q: Can SN74ALS191ANSRE4 count in both up and down directions? A: Yes, SN74ALS191ANSRE4 has an up/down control pin that allows it to count in both up and down directions.

  7. Q: What is the purpose of the carry-out pin in SN74ALS191ANSRE4? A: The carry-out pin in SN74ALS191ANSRE4 is used to indicate when the counter reaches its maximum value (15) and overflows to 0.

  8. Q: Can SN74ALS191ANSRE4 be cascaded to create larger counters? A: Yes, multiple SN74ALS191ANSRE4 ICs can be cascaded together to create larger counters with more bits.

  9. Q: What is the power supply current consumption of SN74ALS191ANSRE4? A: The power supply current consumption of SN74ALS191ANSRE4 is typically around 10 mA.

  10. Q: Are there any specific precautions to consider when using SN74ALS191ANSRE4? A: It is important to ensure proper decoupling capacitors are used near the power supply pins of SN74ALS191ANSRE4 to minimize noise and voltage fluctuations.

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