MC74HC161ADR2

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics:
  • High-Speed CMOS Logic
  • Synchronous Counting
  • Asynchronous Clear
  • Ripple Carry Output
• Package: SOIC-16
• Essence: The MC74HC161ADR2 is a high-speed synchronous counter IC with an asynchronous clear feature and a ripple carry output.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 25 MHz
• Number of Stages: 4-bit binary counter

Detailed Pin Configuration

The MC74HC161ADR2 has a total of 16 pins, which are assigned as follows:

1. Clock Input (CP)
2. Enable Input (ENP)
3. Asynchronous Clear Input (CLR)
4. Data Input (D0)
5. Data Input (D1)
6. Data Input (D2)
7. Data Input (D3)
8. Carry Output (CO)
9. Ripple Carry Input (RCI)
10. Ripple Carry Output (RCO)
11. Q0 Output
12. Q1 Output
13. Q2 Output
14. Q3 Output
15. Ground (GND)
16. Supply Voltage (VCC)

Functional Features

• Synchronous counting operation based on clock input.
• Asynchronous clear input for resetting the counter.
• Ripple carry output for cascading multiple counters.
• High-speed operation suitable for various applications.

Advantages and Disadvantages

Advantages: - High-speed CMOS logic allows for fast counting operations. - Synchronous counting ensures accurate and synchronized results. - Asynchronous clear feature provides flexibility in resetting the counter. - Ripple carry output simplifies cascading of multiple counters.

Disadvantages: - Limited to 4-bit binary counting, may not be suitable for applications requiring larger count ranges. - Requires an external clock signal for operation.

Working Principles

The MC74HC161ADR2 is a synchronous counter that counts based on the input clock signal. Each rising edge of the clock increments the counter by one. The counter can be cleared asynchronously using the clear input, which resets the counter to its initial state. The ripple carry output allows for cascading multiple counters to achieve larger count ranges.

Detailed Application Field Plans

The MC74HC161ADR2 is commonly used in various applications that require counting operations. Some of the potential application fields include:

1. Digital frequency dividers
2. Event counters
3. Timekeeping circuits
4. Industrial automation systems
5. Communication equipment

Detailed and Complete Alternative Models

1. SN74HC161 - Similar 4-bit synchronous counter IC from Texas Instruments.
2. CD74HC161 - Another 4-bit synchronous counter IC from Texas Instruments.
3. 74HCT161 - A 4-bit synchronous counter IC with similar functionality from NXP Semiconductors.

These alternative models provide similar features and can be used as substitutes for the MC74HC161ADR2 depending on specific requirements.

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