Encyclopedia Entry: 74AC163SC

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: High-speed, synchronous, 4-bit binary counter
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Sequential logic device
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature: -40°C to +85°C
• Logic Family: Advanced CMOS (AC)
• Number of Bits: 4
• Clock Input: Synchronous
• Reset Input: Asynchronous
• Output Type: Standard

Detailed Pin Configuration

The 74AC163SC has a total of 16 pins. The pin configuration is as follows:

1. Clock Enable (CE)
2. Parallel Load (PL)
3. Clock (CLK)
4. Master Reset (MR)
5. Data Inputs (D0)
6. Data Inputs (D1)
7. Data Inputs (D2)
8. Data Inputs (D3)
9. Carry Output (CO)
10. Terminal Count (TC)
11. Data Outputs (Q0)
12. Data Outputs (Q1)
13. Data Outputs (Q2)
14. Data Outputs (Q3)
15. Ground (GND)
16. Supply Voltage (VCC)

Functional Features

• High-speed operation with synchronous counting
• Can be used as a modulo-N counter by connecting the appropriate outputs to the clock input
• Parallel load capability for presetting the counter value
• Asynchronous master reset for immediate clearing of the counter
• Carry output for cascading multiple counters
• Terminal count output for indicating when the counter reaches its maximum value

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting in various applications - Synchronous counting ensures accurate and reliable results - Parallel load capability enables easy initialization of the counter - Asynchronous master reset provides quick clearing of the counter - Carry output and terminal count output facilitate cascading and monitoring of multiple counters

Disadvantages: - Limited to 4-bit counting, may not be suitable for applications requiring larger counters - Requires external clock signal for proper operation

Working Principles

The 74AC163SC is a synchronous 4-bit binary counter that operates based on the input clock signal. When the clock enable (CE) input is high, the counter advances by one on each rising edge of the clock signal. The parallel load (PL) input allows presetting the counter value by loading data from the data inputs (D0-D3) when PL is low.

The counter can be cleared to zero by applying a low level to the master reset (MR) input. The carry output (CO) provides a carry signal when the counter reaches its maximum value, allowing for cascading multiple counters. The terminal count (TC) output goes high when the counter reaches its maximum value, indicating a terminal count condition.

Detailed Application Field Plans

The 74AC163SC is commonly used in various applications that require counting functionality. Some of the specific application fields include:

1. Digital frequency dividers
2. Event counters
3. Time delay circuits
4. Industrial automation systems
5. Communication equipment
6. Data processing systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74AC163SC are:

1. 74HC163: High-speed CMOS logic family, compatible with 74AC163SC
2. CD40163: CMOS logic family, 4-bit synchronous binary counter
3. SN74LS163: Low-power Schottky TTL logic family, 4-bit synchronous counter

These alternative models can be considered based on specific requirements and compatibility with the existing system.

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