CD74HC390M96G4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Digital Counter
• Characteristics: High-Speed, Dual 4-Bit Decade Counter
• Package: SOIC-16
• Essence: The CD74HC390M96G4 is a high-speed dual 4-bit decade counter integrated circuit. It is commonly used in digital circuits for counting and frequency division applications.
• Packaging/Quantity: Available in reels of 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Logic Family: HC
• Number of Pins: 16
• Propagation Delay: 13 ns
• Maximum Clock Frequency: 74 MHz
• Output Current: ±5.2 mA

Pin Configuration

The CD74HC390M96G4 has 16 pins arranged as follows:

__ __ Q1 |1 \__/ 16| Vcc Q0 |2 15| Q3 Q2 |3 14| Q4 Q3 |4 13| Q5 Q4 |5 CD 12| Q6 Q5 |6 74 11| Q7 Q6 |7 HC 10| MR Q7 |8 9| CLK |__________|

Functional Features

• Dual 4-bit decade counters: The CD74HC390M96G4 consists of two independent 4-bit decade counters, allowing for simultaneous counting of two separate signals.
• High-speed operation: With a maximum clock frequency of 74 MHz and a propagation delay of only 13 ns, this IC is suitable for high-speed digital applications.
• Reset function: The MR (Master Reset) pin allows for resetting the counters to their initial state.
• Cascadable: Multiple CD74HC390M96G4 ICs can be cascaded together to create larger counter configurations.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient counting in time-critical applications. - Dual counters provide flexibility in counting multiple signals simultaneously. - Cascadable design allows for expanding the counter configuration as needed.

Disadvantages: - Limited number of bits (4-bit) may not be sufficient for certain applications requiring higher precision or larger counting ranges. - Requires external clock signal for counting, which may introduce additional complexity in circuit design.

Working Principles

The CD74HC390M96G4 operates based on the principles of digital counting. It counts input clock pulses and increments its internal counters accordingly. The outputs represent the current count value in binary form. The counters can be reset to their initial state using the Master Reset (MR) pin.

Detailed Application Field Plans

The CD74HC390M96G4 finds applications in various fields where digital counting and frequency division are required. Some specific application areas include:

1. Frequency dividers in communication systems
2. Digital clocks and timers
3. Industrial automation and control systems
4. Pulse generation and measurement circuits
5. Data processing and arithmetic circuits

Detailed and Complete Alternative Models

1. SN74HC390N: Similar dual 4-bit decade counter IC from Texas Instruments.
2. CD4017BE: Decade counter with 10 outputs, suitable for more complex counting applications.
3. MC14040B: Binary counter IC with a wider counting range and additional features.

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

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