74LVC161D,118

Product Overview

Category

The 74LVC161D,118 belongs to the category of integrated circuits (ICs), specifically digital counters.

Use

This IC is commonly used in various electronic devices and systems for counting purposes. It can be utilized in applications such as frequency dividers, event counters, and time measurement circuits.

Characteristics

• Low-voltage CMOS technology
• High-speed operation
• Wide operating voltage range
• Schmitt-trigger action on all inputs
• Direct interface with TTL levels
• Balanced propagation delays
• Multiple package options available

Package

The 74LVC161D,118 is typically offered in a small outline integrated circuit (SOIC) package. This package provides ease of handling and compatibility with automated assembly processes.

Essence

The essence of the 74LVC161D,118 lies in its ability to accurately count and process digital signals within electronic systems. It offers reliable and efficient counting functionality, making it an essential component in many applications.

Packaging/Quantity

The IC is usually supplied in reels or tubes, depending on the manufacturer's packaging standards. The quantity per reel or tube may vary, but it is typically in the range of a few hundred to several thousand units.

Specifications

• Supply Voltage: 1.65V to 5.5V
• Operating Temperature Range: -40°C to +125°C
• Maximum Clock Frequency: 200MHz
• Number of Counting Stages: 4
• Input Logic Levels: CMOS/TTL compatible
• Output Logic Levels: CMOS

Detailed Pin Configuration

The 74LVC161D,118 has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. Clock (CLK)
2. Enable (ENP)
3. Enable (ENT)
4. Reset (RST)
5. Carry Out (CO)
6. Data Inputs (D0-D3)
7. Parallel Load (PL)
8. Carry In (CI)
9. Output (Q0)
10. Output (Q1)
11. Output (Q2)
12. Output (Q3)
13. Ground (GND)
14. Output Voltage (VCC)
15. Output Voltage (VCC)
16. Clock Inhibit (CLK INH)

Functional Features

• Asynchronous parallel load capability
• Synchronous counting operation
• Carry input and output for cascading multiple counters
• Reset function to initialize the counter
• Schmitt-trigger inputs for noise immunity
• Low power consumption
• High-speed operation

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems
• Balanced propagation delays ensure accurate counting
• Direct interface with TTL levels simplifies integration into existing designs
• Low-voltage CMOS technology reduces power consumption
• Schmitt-trigger action on all inputs enhances noise immunity

Disadvantages

• Limited number of counting stages (4 in this case)
• May require additional circuitry for complex counting applications

Working Principles

The 74LVC161D,118 operates based on synchronous counting principles. It counts the rising edges of the clock signal and increments its internal counter accordingly. The count value is stored in the output registers and can be accessed through the corresponding output pins. The counter can be reset to zero using the reset input or loaded with a specific value using the parallel load input.

Detailed Application Field Plans

The 74LVC161D,118 finds application in various fields where accurate counting is required. Some potential application areas include:

1. Frequency dividers in communication systems
2. Event counters in industrial automation
3. Time measurement circuits in electronic instruments
4. Digital clocks and timers
5. Data acquisition systems

Detailed and Complete Alternative Models

• 74HC161: Similar functionality but operates at a higher voltage range (2V to 6V)
• CD40161B: CMOS-based counter with similar features, but different pin configuration
• SN74LS161A: TTL-compatible counter with asynchronous parallel load capability

These alternative models offer similar counting capabilities and can be used as substitutes for the 74LVC161D,118 depending on specific requirements.

In conclusion, the 74LVC161D,118 is a versatile digital counter IC that provides accurate counting functionality in various electronic applications. Its low-voltage CMOS technology, high-speed operation, and compatibility with TTL levels make it a popular choice among designers.