SN74LV161AD

Product Overview

Category

SN74LV161AD belongs to the category of integrated circuits (ICs).

Use

It is commonly used as a synchronous 4-bit binary counter.

Characteristics

• Low-voltage operation
• High-speed performance
• Synchronous counting
• Asynchronous reset
• Schmitt-trigger inputs

Package

SN74LV161AD is available in a small-outline integrated circuit (SOIC) package.

Essence

The essence of SN74LV161AD lies in its ability to count binary numbers synchronously and reset asynchronously.

Packaging/Quantity

SN74LV161AD is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply voltage: 2V to 5.5V
• Operating temperature range: -40°C to +85°C
• Maximum clock frequency: 50 MHz
• Number of bits: 4
• Counting mode: Up
• Reset type: Asynchronous
• Input type: Schmitt-trigger

Detailed Pin Configuration

1. Clock (CLK)
2. Enable (ENP)
3. Parallel Load (PL)
4. Data Inputs (D0-D3)
5. Carry Output (CO)
6. Down/Up Count Control (UP/DN)
7. Asynchronous Reset (CLR)
8. Outputs (Q0-Q3)
9. GND (Ground)
10. VCC (Supply Voltage)

Functional Features

Synchronous Counting

SN74LV161AD performs synchronous counting, meaning that the output changes simultaneously with the clock input.

Asynchronous Reset

The asynchronous reset feature allows the counter to be reset at any time, regardless of the clock input.

Schmitt-Trigger Inputs

The Schmitt-trigger inputs ensure reliable and noise-immune operation by providing hysteresis.

Advantages and Disadvantages

Advantages

• Low-voltage operation allows for compatibility with a wide range of systems.
• High-speed performance enables efficient counting in time-critical applications.
• Synchronous counting ensures accurate and synchronized output.
• Asynchronous reset provides flexibility in resetting the counter.
• Schmitt-trigger inputs enhance noise immunity and reliability.

Disadvantages

• Limited to 4-bit counting, which may not be sufficient for certain applications requiring larger counters.
• Requires external components for additional functionality, such as clock generation or parallel loading.

Working Principles

SN74LV161AD operates based on the principle of synchronous counting. The clock input triggers the counter to increment its count by one on each rising edge. The count can be loaded in parallel using the parallel load input. The asynchronous reset input allows the counter to be reset to zero at any time, independent of the clock input.

Detailed Application Field Plans

SN74LV161AD finds applications in various fields, including: 1. Digital frequency dividers 2. Event counters 3. Industrial automation 4. Communication systems 5. Automotive electronics

Detailed and Complete Alternative Models

1. SN74LV163A: Similar to SN74LV161AD but with a 4-bit binary counter and synchronous reset.
2. CD40161B: A CMOS version of the 4-bit synchronous binary counter.
3. MC14060B: A 14-stage ripple carry binary counter that can be used as an alternative for certain applications.

These alternative models offer similar functionalities and can be considered depending on specific requirements.

In conclusion, SN74LV161AD is a versatile integrated circuit used for synchronous 4-bit binary counting. Its low-voltage operation, high-speed performance, and flexible features make it suitable for various applications. However, its limited bit count and reliance on external components may pose limitations in certain scenarios.