Encyclopedia Entry: 74ACT163SJX

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Counter/Divider
• Characteristics: High-speed, synchronous, 4-bit binary counter with asynchronous reset
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The 74ACT163SJX is a versatile IC that can be used as a counter or a divider in various electronic applications.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Supply Voltage: 2.0V to 6.0V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage Levels: High: 2.0V to VCC, Low: GND to 0.8V
• Output Voltage Levels: High: VCC - 0.5V, Low: 0.5V
• Maximum Clock Frequency: 125 MHz

Detailed Pin Configuration

The 74ACT163SJX has a total of 16 pins, which are assigned specific functions:

1. CLK (Clock Input)
2. MR (Master Reset Input)
3. CP0 (Parallel Data Input)
4. CP1 (Parallel Data Input)
5. CP2 (Parallel Data Input)
6. CP3 (Parallel Data Input)
7. Q0 (Counter Output)
8. Q1 (Counter Output)
9. Q2 (Counter Output)
10. Q3 (Counter Output)
11. TC (Terminal Count Output)
12. GND (Ground)
13. QD (Ripple Carry Output)
14. VCC (Positive Power Supply)
15. CE (Clock Enable Input)
16. PE (Parallel Enable Input)

Functional Features

• Synchronous operation with a common clock input (CLK)
• Asynchronous master reset (MR) for resetting the counter to its initial state
• Parallel data inputs (CP0, CP1, CP2, CP3) for loading initial count values
• Counter outputs (Q0, Q1, Q2, Q3) provide the binary count value
• Terminal Count output (TC) goes high when the counter reaches its maximum count value
• Ripple Carry output (QD) can be used to cascade multiple counters

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient counting/dividing in time-critical applications. - Synchronous design ensures accurate and reliable counting. - Versatile functionality enables various applications.

Disadvantages: - Limited maximum clock frequency may restrict its use in certain high-frequency applications. - Requires external components for proper power supply and signal conditioning.

Working Principles

The 74ACT163SJX is a synchronous counter that operates based on the rising edge of the clock input (CLK). When the clock input transitions from low to high, the counter increments its count value by one. The counter can be reset to its initial state using the asynchronous master reset input (MR).

The parallel data inputs (CP0, CP1, CP2, CP3) allow the user to load specific count values into the counter at any time. The counter outputs (Q0, Q1, Q2, Q3) provide the binary representation of the current count value. The terminal count output (TC) goes high when the counter reaches its maximum count value, indicating an overflow condition.

The ripple carry output (QD) can be used to cascade multiple counters, allowing for larger counting ranges.

Detailed Application Field Plans

The 74ACT163SJX finds applications in various fields, including:

1. Digital frequency division in communication systems
2. Timekeeping and clock generation circuits
3. Industrial automation and control systems
4. Digital counters in scientific instruments
5. Sequential logic circuits

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT163SJX include:

1. 74HC163: High-speed, synchronous 4-bit binary counter with asynchronous reset.
2. CD40163: CMOS presettable synchronous 4-bit binary counter.

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

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