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SN74HC161APWR

SN74HC161APWR

Product Overview

Category

SN74HC161APWR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Schmitt-trigger inputs for noise immunity
  • Compatible with TTL and CMOS logic levels

Package

SN74HC161APWR is available in a small-sized TSSOP-16 package.

Essence

The essence of SN74HC161APWR lies in its ability to perform reliable and efficient counting and sequencing operations in digital circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Supply Voltage: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Clock Frequency: 50 MHz
  • Number of Counting Stages: 4
  • Output Current: ±6 mA

Detailed Pin Configuration

  1. CLK (Clock Input)
  2. MR (Master Reset Input)
  3. CPD (Count Enable Parallel Input)
  4. A (Binary Input A)
  5. B (Binary Input B)
  6. C (Binary Input C)
  7. D (Binary Input D)
  8. GND (Ground)
  9. QD (Output QD)
  10. QC (Output QC)
  11. QB (Output QB)
  12. QA (Output QA)
  13. VCC (Supply Voltage)
  14. LOAD (Parallel Load Input)
  15. ENT (Enable Counting Input)
  16. TC (Terminal Count Output)

Functional Features

  • Asynchronous Master Reset (MR) input for resetting the counter to zero.
  • Count Enable Parallel (CPD) input for loading a specific count into the counter.
  • Enable Counting (ENT) input for enabling or disabling the counting operation.
  • Terminal Count (TC) output indicates when the counter reaches its maximum count value.
  • Schmitt-trigger inputs provide noise immunity and improve signal integrity.

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient counting in various applications.
  • Low power consumption makes it suitable for battery-powered devices.
  • Wide operating voltage range provides flexibility in different voltage environments.
  • Schmitt-trigger inputs ensure reliable operation even in noisy environments.
  • Compatibility with TTL and CMOS logic levels allows for easy integration into existing circuits.

Disadvantages

  • Limited number of counting stages (4 in this case) may not be sufficient for complex applications requiring higher counts.
  • Lack of built-in error detection or correction mechanisms, which may be necessary in critical applications.

Working Principles

SN74HC161APWR is a synchronous 4-bit binary counter. It counts up or down based on the clock input and control signals. The counter can be reset to zero using the Master Reset (MR) input. The Count Enable Parallel (CPD) input allows loading a specific count into the counter. The Enable Counting (ENT) input enables or disables the counting operation. The Terminal Count (TC) output indicates when the counter reaches its maximum count value.

Detailed Application Field Plans

SN74HC161APWR finds applications in various digital systems, including: - Frequency dividers - Event counters - Time delay generators - Industrial automation - Communication systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74HC161APWR are: - CD40161BE - MC74HC161N - 74HCT161N - CD74HC161E

These alternative models can be considered based on specific requirements, availability, and pricing.

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Перечислите 10 распространенных вопросов и ответов, связанных с применением SN74HC161APWR в технических решениях.

Sure! Here are 10 common questions and answers related to the application of SN74HC161APWR:

  1. Q: What is SN74HC161APWR? A: SN74HC161APWR is a 4-bit synchronous binary counter IC (integrated circuit) that can be used in various technical solutions.

  2. Q: What is the operating voltage range for SN74HC161APWR? A: The operating voltage range for SN74HC161APWR is typically between 2V and 6V.

  3. Q: How many bits does SN74HC161APWR have? A: SN74HC161APWR is a 4-bit counter, meaning it can count up to 15 (1111 in binary).

  4. Q: What is the maximum clock frequency for SN74HC161APWR? A: The maximum clock frequency for SN74HC161APWR is typically around 50 MHz.

  5. Q: Can SN74HC161APWR be cascaded to create larger counters? A: Yes, multiple SN74HC161APWR ICs can be cascaded together to create larger counters with more bits.

  6. Q: Does SN74HC161APWR have any built-in reset functionality? A: No, SN74HC161APWR does not have a built-in reset function. However, external reset circuits can be added if needed.

  7. Q: What is the power supply current requirement for SN74HC161APWR? A: The power supply current requirement for SN74HC161APWR is typically around 8 mA.

  8. Q: Can SN74HC161APWR be used in both synchronous and asynchronous modes? A: No, SN74HC161APWR is designed to operate only in synchronous mode.

  9. Q: What is the typical propagation delay for SN74HC161APWR? A: The typical propagation delay for SN74HC161APWR is around 10 ns.

  10. Q: Can SN74HC161APWR be used in both digital and analog applications? A: No, SN74HC161APWR is a digital IC and is not suitable for analog applications.

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