MM74C73N

Product Overview

• Category: Integrated Circuit (IC)
• Use: Counter
• Characteristics: Dual 4-bit binary up/down counter
• Package: DIP (Dual In-line Package)
• Essence: Logic IC for counting and control applications
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Supply Voltage: 5V
• Maximum Clock Frequency: 30 MHz
• Operating Temperature Range: -40°C to +85°C
• Logic Family: CMOS
• Number of Pins: 14
• Pin Pitch: 2.54mm

Detailed Pin Configuration

1. CLK (Clock Input)
2. UP/DOWN (Up/Down Control Input)
3. MR (Master Reset Input)
4. CPD (Count Enable Parallel Input)
5. Q0 (Output Bit 0)
6. Q1 (Output Bit 1)
7. Q2 (Output Bit 2)
8. Q3 (Output Bit 3)
9. GND (Ground)
10. VCC (Supply Voltage)
11. CE (Count Enable Input)
12. LD (Load Input)
13. TC (Terminal Count Output)
14. RC (Ripple Carry Output)

Functional Features

• Dual 4-bit binary up/down counter with separate clock inputs
• Can count up or down based on the UP/DOWN control input
• Master reset input allows resetting the counter to a known state
• Count enable input enables or disables the counting operation
• Load input allows loading a specific value into the counter
• Terminal count output indicates when the counter reaches its maximum count
• Ripple carry output provides a carry signal for cascading multiple counters

Advantages and Disadvantages

Advantages: - Versatile counter IC suitable for various counting and control applications - Can be easily integrated into digital circuits due to its standard logic levels - Dual counter allows for more complex counting operations

Disadvantages: - Limited maximum clock frequency of 30 MHz - Requires external components for proper operation (clock source, control signals)

Working Principles

The MM74C73N is a synchronous counter that operates based on the clock input and control signals. It uses flip-flops to store and propagate the count value. The UP/DOWN control input determines whether the counter counts up or down. The clock input triggers the counter to increment or decrement its count value. The master reset input resets the counter to a known state when activated. The count enable input enables or disables the counting operation. The load input allows loading a specific value into the counter. The terminal count output indicates when the counter reaches its maximum count. The ripple carry output provides a carry signal for cascading multiple counters.

Detailed Application Field Plans

The MM74C73N can be used in various applications that require counting and control functions. Some potential application fields include:

1. Digital frequency dividers
2. Industrial automation systems
3. Electronic voting machines
4. Traffic light control systems
5. Event timing and sequencing circuits
6. Digital clocks and timers
7. Robotics and motion control systems
8. Data communication protocols
9. Gaming and amusement devices
10. Scientific research equipment

Detailed and Complete Alternative Models

1. CD4516BE: Presettable Binary Up/Down Counter IC
2. SN74LS192N: Synchronous 4-Bit Up/Down Counter IC
3. CD4029BE: Presettable Up/Down Counter IC
4. CD40193BE: Synchronous 4-Bit Up/Down Counter IC
5. CD4510BE: BCD Up/Down Counter IC

These alternative models offer similar functionality and can be considered as alternatives to the MM74C73N depending on specific requirements.

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