MC74HC390ADR2G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter/Divider
• Characteristics: High-Speed CMOS Logic, Dual 4-Stage Binary Ripple Counter
• Package: SOIC-16
• Essence: The MC74HC390ADR2G is a dual 4-stage binary ripple counter that operates on high-speed CMOS logic. It is commonly used in digital circuits for counting and dividing signals.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Maximum Clock Frequency: 29 MHz
• Number of Stages: 4
• Output Type: Standard
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74HC390ADR2G has a total of 16 pins arranged as follows:

1. Q0A - Output of Stage A, Bit 0
2. Q1A - Output of Stage A, Bit 1
3. Q2A - Output of Stage A, Bit 2
4. Q3A - Output of Stage A, Bit 3
5. GND - Ground
6. Q3B - Output of Stage B, Bit 3
7. Q2B - Output of Stage B, Bit 2
8. Q1B - Output of Stage B, Bit 1
9. Q0B - Output of Stage B, Bit 0
10. MR - Master Reset Input
11. CP - Clock Pulse Input
12. Q0B - Output of Stage B, Bit 0
13. Q1B - Output of Stage B, Bit 1
14. Q2B - Output of Stage B, Bit 2
15. Q3B - Output of Stage B, Bit 3
16. VCC - Supply Voltage

Functional Features

• Dual 4-stage binary ripple counter
• High-speed CMOS logic for efficient operation
• Master Reset input for resetting the counter
• Clock Pulse input for counting and dividing signals
• Outputs for each stage (A and B) providing binary outputs

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick counting and dividing of signals - Compact SOIC-16 package for easy integration into digital circuits - Dual counter design provides flexibility in applications requiring multiple counters

Disadvantages: - Limited supply voltage range (2V to 6V) - Maximum clock frequency may restrict its use in certain high-frequency applications

Working Principles

The MC74HC390ADR2G operates as a dual 4-stage binary ripple counter. It counts or divides incoming clock pulses based on the clock pulse input (CP). The counter advances by one on each rising edge of the clock pulse. The Master Reset input (MR) can be used to reset the counter to its initial state.

The outputs of each stage (A and B) provide binary outputs representing the count value. The Q0A and Q0B outputs represent the least significant bit (LSB), while the Q3A and Q3B outputs represent the most significant bit (MSB).

Detailed Application Field Plans

The MC74HC390ADR2G is commonly used in various digital applications that require counting and dividing signals. Some specific application fields include:

1. Frequency Division: The counter can be used to divide an input frequency by a specific factor, allowing for frequency reduction or synchronization with other components.
2. Timing Generation: By utilizing the counter's outputs, precise timing sequences can be generated for controlling various operations in digital systems.
3. Event Counting: The counter can be employed to count events or occurrences, such as the number of pulses received from a sensor or the number of cycles in a repetitive process.

Detailed and Complete Alternative Models

1. CD74HC390E: Similar dual 4-stage binary ripple counter with a wider supply voltage range (2V to 6V) and maximum clock frequency (50 MHz).
2. SN74HC390N: Dual 4-stage binary ripple counter with similar characteristics and package type (DIP-16), suitable for through-hole mounting.
3. MC74HCT390AN: Dual 4-stage binary ripple counter with TTL-compatible inputs and outputs, allowing for easy integration with TTL logic systems.

These alternative models offer similar functionality to the MC74HC390ADR2G and can be considered based on specific requirements and availability.

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