MC74HC161ADG

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: High-speed operation, low power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: 4-bit synchronous binary counter
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -55°C to +125°C
• Maximum Clock Frequency: 25 MHz
• Number of Counting Stages: 4
• Output Type: Synchronous

Detailed Pin Configuration

The MC74HC161ADG has a total of 16 pins. The pin configuration is as follows:

1. Clock Enable (CE)
2. Asynchronous Clear (CLR)
3. Parallel Load (PL)
4. Data Inputs (D0-D3)
5. Carry Out (CO)
6. Clock (CLK)
7. Parallel Enable (PE)
8. Carry In (CI)
9. Q0 Output
10. Q1 Output
11. Q2 Output
12. Q3 Output
13. GND (Ground)
14. Q3' Output
15. Q2' Output
16. VCC (Supply Voltage)

Functional Features

• Synchronous operation: The MC74HC161ADG performs counting operations synchronously with the clock signal.
• Parallel load capability: It allows the user to load data in parallel into the counter.
• Asynchronous clear: The counter can be cleared asynchronously using the CLR input.
• Carry input and output: The carry input and output signals enable cascading multiple counters.

Advantages and Disadvantages

Advantages: - High-speed operation: The MC74HC161ADG operates at a maximum clock frequency of 25 MHz, making it suitable for applications requiring fast counting. - Low power consumption: It consumes low power, making it energy-efficient.

Disadvantages: - Limited counting stages: The MC74HC161ADG has only 4 counting stages, which may not be sufficient for certain applications requiring higher bit counts. - Limited voltage range: The supply voltage range of 2V to 6V may restrict its usability in some systems that operate outside this range.

Working Principles

The MC74HC161ADG is a synchronous binary counter that counts up or down based on the clock signal. It uses flip-flops to store and propagate the count. The counter can be loaded with data in parallel using the PL input. The CLR input asynchronously clears the counter to its initial state. The carry input and output allow cascading multiple counters to achieve higher bit counts.

Detailed Application Field Plans

The MC74HC161ADG finds applications in various fields, including:

1. Digital frequency division: It can be used to divide an input frequency by a specific factor.
2. Event counting: The counter can keep track of events occurring within a given time period.
3. Timing circuits: It can be utilized in timing circuits to generate precise time intervals.
4. Industrial automation: The MC74HC161ADG can be employed in industrial automation systems for counting and control purposes.

Detailed and Complete Alternative Models

Some alternative models to the MC74HC161ADG are:

1. CD74HC161E
2. SN74HC161N
3. 74HCT161

These models offer similar functionality and can be used as alternatives depending on specific requirements.

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