Encyclopedia Entry: 74AC163SCX

Product Overview

Category

The 74AC163SCX belongs to the category of integrated circuits (ICs) and specifically falls under the family of digital counters.

Use

This IC is primarily used for counting purposes in various electronic applications. It can be employed in digital systems where sequential counting is required.

Characteristics

• The 74AC163SCX is a synchronous, presettable, 4-bit binary counter.
• It operates on a supply voltage range of 2V to 6V.
• This IC offers high-speed operation with low power consumption.
• It features synchronous parallel loading capability.
• The 74AC163SCX has a maximum clock frequency of 125 MHz.

Package and Quantity

The 74AC163SCX is available in a small outline package (SOIC) with 16 pins. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2V to 6V
• Maximum Clock Frequency: 125 MHz
• Number of Bits: 4
• Package Type: SOIC-16

Detailed Pin Configuration

The pin configuration of the 74AC163SCX is as follows:

__ __ |1 \/ 16| VCC |2 | CP |3 | MR |4 | PE |5 | T0 |6 | T1 |7 | T2 |8 | T3 |9 | Q0 |10 | Q1 |11 | Q2 |12 | Q3 |13 | GND |14 | PL |15 | CE |________|

Functional Features

• Synchronous operation: The 74AC163SCX performs counting operations synchronously with the clock signal.
• Parallel loading: It allows for parallel loading of preset values into the counter.
• Asynchronous master reset: The MR pin can be used to reset the counter asynchronously.
• Enable control: The CE (Count Enable) and PE (Parallel Enable) pins provide control over the counting and parallel loading functions, respectively.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient counting in time-critical applications. - Low power consumption makes it suitable for battery-powered devices. - Synchronous parallel loading simplifies the initialization process.

Disadvantages: - Limited number of bits (4) restricts its use in applications requiring larger counters. - Availability may vary depending on the supplier and region.

Working Principles

The 74AC163SCX operates based on synchronous sequential logic. It counts in binary from 0 to 15 and resets to 0 when the maximum count is reached. The counter advances on each rising edge of the clock signal, provided the count enable (CE) input is high. The parallel load (PL) input allows presetting the counter value by loading data from the T0-T3 inputs when enabled.

Detailed Application Field Plans

The 74AC163SCX finds application in various electronic systems that require counting functionality. Some common areas of use include: - Digital frequency dividers - Event counters - Timekeeping circuits - Industrial automation systems

Alternative Models

There are several alternative models available that offer similar functionality to the 74AC163SCX. Some notable alternatives include: - 74HC163: A CMOS version of the counter with a wider supply voltage range. - CD40163: A complementary metal-oxide-semiconductor (CMOS) counter with asynchronous reset capability. - SN74LS163: A low-power Schottky TTL counter with synchronous parallel loading.

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

In conclusion, the 74AC163SCX is a versatile 4-bit binary counter IC that offers high-speed operation, low power consumption, and synchronous counting capabilities. Its compact package and various functional features make it suitable for a wide range of electronic applications.