Texas Instruments
Bild kan vara representation.
Se specifikationer för produktinformation.
SN74LS161ANSR
Visa detalj Datablad

SN74LS161ANSR

Product Overview

Category

SN74LS161ANSR belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • Low-power Schottky (LS) technology
  • 4-bit synchronous binary counter
  • Asynchronous master reset
  • Synchronous parallel load
  • Carry output for cascading
  • Wide operating voltage range: 2V to 6V

Package

SN74LS161ANSR is available in a small-outline integrated circuit (SOIC) package.

Essence

The essence of SN74LS161ANSR lies in its ability to perform counting operations and store data in digital systems.

Packaging/Quantity

SN74LS161ANSR is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage Range: 2V to 6V
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: LS
  • Number of Bits: 4
  • Counting Sequence: Binary
  • Clock Input: Synchronous
  • Reset Input: Asynchronous
  • Load Input: Synchronous
  • Output Type: Standard

Detailed Pin Configuration

  1. Clock (CLK)
  2. Parallel Load (PL)
  3. Enable (ENP)
  4. Enable (ENT)
  5. Master Reset (MR)
  6. Carry Out (CO)
  7. Data Inputs (D0-D3)
  8. Outputs (Q0-Q3)

Functional Features

Synchronous Operation

The SN74LS161ANSR operates synchronously, meaning that the counting and loading of data occur simultaneously with the clock signal.

Asynchronous Master Reset

The asynchronous master reset input allows the counter to be reset to its initial state regardless of the clock signal.

Synchronous Parallel Load

The synchronous parallel load input enables the counter to load data from the data inputs in a parallel manner when the load signal is active.

Carry Output

The carry output provides the ability to cascade multiple counters together for higher bit counting operations.

Advantages and Disadvantages

Advantages

  • Low-power consumption due to LS technology
  • Wide operating voltage range allows for compatibility with various systems
  • Compact SOIC package for space-saving designs
  • Versatile application in digital circuits

Disadvantages

  • Limited to 4-bit counting, may not be suitable for applications requiring higher bit counts
  • Asynchronous master reset can introduce timing challenges in certain designs

Working Principles

The SN74LS161ANSR operates based on the principles of synchronous sequential logic. It utilizes flip-flops and combinational logic to perform counting and data storage functions. The clock signal controls the timing of the counting operation, while the load and reset inputs provide additional control over the counter's behavior.

Detailed Application Field Plans

SN74LS161ANSR finds applications in various fields, including: 1. Digital frequency dividers 2. Event counters 3. Industrial automation systems 4. Communication equipment 5. Automotive electronics

Detailed and Complete Alternative Models

  1. SN74LS163AN: 4-bit synchronous binary counter with parallel load
  2. SN74LS169AN: 4-bit synchronous up/down binary counter
  3. SN74LS193N: 4-bit synchronous up/down binary counter with separate up/down inputs
  4. SN74LS194AN: 4-bit bidirectional universal shift register

These alternative models offer similar functionality to SN74LS161ANSR and can be considered as alternatives depending on specific requirements.

Word count: 536 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74LS161ANSR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74LS161ANSR:

  1. Q: What is SN74LS161ANSR? A: SN74LS161ANSR is a synchronous 4-bit binary counter IC (integrated circuit) that can be used in various technical solutions.

  2. Q: What is the maximum clock frequency for SN74LS161ANSR? A: The maximum clock frequency for SN74LS161ANSR is typically around 25 MHz.

  3. Q: How many outputs does SN74LS161ANSR have? A: SN74LS161ANSR has four outputs, representing the four bits of the binary count.

  4. Q: Can SN74LS161ANSR be cascaded to create larger counters? A: Yes, SN74LS161ANSR can be cascaded with other counters to create larger counting circuits.

  5. Q: What is the power supply voltage range for SN74LS161ANSR? A: The power supply voltage range for SN74LS161ANSR is typically between 4.75V and 5.25V.

  6. Q: Does SN74LS161ANSR have any built-in error detection or correction features? A: No, SN74LS161ANSR does not have any built-in error detection or correction features.

  7. Q: Can SN74LS161ANSR be used in both synchronous and asynchronous applications? A: No, SN74LS161ANSR is specifically designed for synchronous applications.

  8. Q: What is the maximum propagation delay for SN74LS161ANSR? A: The maximum propagation delay for SN74LS161ANSR is typically around 20 ns.

  9. Q: Can SN74LS161ANSR be used in both rising-edge and falling-edge triggered systems? A: Yes, SN74LS161ANSR can be used in both rising-edge and falling-edge triggered systems.

  10. Q: What is the typical power consumption of SN74LS161ANSR? A: The typical power consumption of SN74LS161ANSR is around 20 mW.

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