MM74C89N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter/Divider
• Characteristics:
  • 4-bit binary synchronous counter
  • High-speed operation
  • Low power consumption
• Package: DIP (Dual In-line Package)
• Essence: Reliable and efficient counter/divider IC
• Packaging/Quantity: Available in packs of 10 or 25 units

Specifications

• Supply Voltage: 5V
• Operating Temperature: -40°C to +85°C
• Maximum Clock Frequency: 30 MHz
• Number of Stages: 4
• Output Type: TTL (Transistor-Transistor Logic)
• Propagation Delay: 15 ns (typical)

Detailed Pin Configuration

The MM74C89N has a total of 16 pins, which are assigned as follows:

1. CLK (Clock Input)
2. MR (Master Reset Input)
3. QA (Output A)
4. QB (Output B)
5. QC (Output C)
6. QD (Output D)
7. GND (Ground)
8. VCC (Power Supply)

9-16. Not connected (NC)

Functional Features

• Synchronous counting: The MM74C89N performs binary counting in synchronization with the clock input.
• Master reset: The master reset input allows resetting the counter to its initial state.
• High-speed operation: Capable of handling clock frequencies up to 30 MHz.
• Low power consumption: Designed to minimize power usage, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Reliable performance - Easy to integrate into digital circuits - Low power consumption - High-speed operation

Disadvantages: - Limited number of stages (4-bit) - Not suitable for applications requiring larger counters

Working Principles

The MM74C89N is a synchronous counter that uses flip-flops to store and propagate binary values. It counts in synchronization with the clock input, incrementing by one on each rising edge of the clock signal. The master reset input allows resetting the counter to its initial state.

Detailed Application Field Plans

The MM74C89N can be used in various applications, including: 1. Digital frequency dividers 2. Event counters 3. Pulse generators 4. Time delay circuits 5. Industrial automation systems

Detailed and Complete Alternative Models

1. CD4017: 10-stage Johnson counter/divider
2. SN74LS163: 4-bit synchronous counter
3. CD4020: 14-stage binary counter

These alternative models offer similar functionalities and can be considered as alternatives to the MM74C89N depending on specific requirements.

In conclusion, the MM74C89N is a reliable and efficient 4-bit binary synchronous counter IC. With its high-speed operation, low power consumption, and easy integration into digital circuits, it finds applications in various fields such as digital frequency dividers, event counters, and pulse generators. However, due to its limited number of stages, it may not be suitable for applications requiring larger counters.