SN74ALS163BDBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: High-speed, synchronous, 4-bit binary counter
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The SN74ALS163BDBR is a versatile counter IC that can be used in various applications requiring counting functionality.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to 85°C
• Number of Bits: 4
• Clock Frequency: Up to 125 MHz
• Propagation Delay: 8 ns
• Output Current: ±24 mA
• Logic Family: ALS (Advanced Low-Power Schottky)

Detailed Pin Configuration

The SN74ALS163BDBR has a total of 16 pins, each serving a specific function:

1. CLR (Clear) - Active low clear input
2. CLK (Clock) - Clock input for counting
3. ENP (Enable Parallel) - Active high parallel enable input
4. ENT (Enable Count) - Active high count enable input
5. LOAD - Active high load input
6. D0-D3 (Data Inputs) - Binary inputs for counting
7. Q0-Q3 (Outputs) - Binary outputs representing the count value
8. GND (Ground) - Ground reference
9. NC (No Connection) - No connection
10. VCC (Supply Voltage) - Positive supply voltage

Functional Features

• Synchronous operation: The counter advances on each clock pulse, ensuring accurate counting.
• Parallel loading: Allows the initial count value to be loaded in parallel.
• Clear function: Resets the counter to zero when the clear input is activated.
• Count enable: Enables or disables counting based on the state of the count enable input.
• High-speed operation: Capable of handling clock frequencies up to 125 MHz.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient counting in time-critical applications.
• Synchronous operation ensures accurate and synchronized counting.
• Versatile functionality makes it suitable for a wide range of applications.
• Compact SOIC package offers space-saving benefits.

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 and display interfacing.

Working Principles

The SN74ALS163BDBR operates as a synchronous 4-bit binary counter. It counts up or down based on the clock input and the state of the count enable input. The counter advances on each rising edge of the clock signal when the count enable input is active. The count value is represented by the binary outputs Q0-Q3.

The counter can be cleared to zero by activating the clear input. Additionally, the initial count value can be loaded in parallel using the load input. The counter operates within the specified supply voltage range and temperature range.

Detailed Application Field Plans

The SN74ALS163BDBR can be used in various applications that require counting functionality, such as:

1. Digital frequency dividers
2. Event counters
3. Timekeeping circuits
4. Industrial automation systems
5. Communication equipment
6. Automotive electronics
7. Consumer electronics

Detailed and Complete Alternative Models

1. SN74ALS161BDBR: 4-bit synchronous binary counter with asynchronous reset.
2. SN74ALS162BDBR: 4-bit synchronous binary counter with synchronous reset.
3. SN74ALS164BDBR: 8-bit parallel-out serial shift register.

These alternative models offer similar functionality to the SN74ALS163BDBR and can be considered as alternatives based on specific requirements.

In conclusion, the SN74ALS163BDBR is a high-speed, synchronous 4-bit binary counter IC that offers versatile counting functionality. Its compact package, reliable operation, and wide range of applications make it a popular choice in various electronic systems.