CD74HC73M

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate
• Characteristics: High-Speed, Dual JK Flip-Flop
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital Logic Component
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC (High-Speed CMOS)
• Number of Flip-Flops: 2
• Flip-Flop Type: JK
• Clock Triggering: Positive Edge-Triggered
• Propagation Delay: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HC73M has a total of 14 pins. The pin configuration is as follows:

1. CLR (Clear Input for both flip-flops)
2. CLK (Clock Input for both flip-flops)
3. J1 (J Input for the first flip-flop)
4. K1 (K Input for the first flip-flop)
5. Q1 (Q Output for the first flip-flop)
6. Q̅1 (Complementary Q Output for the first flip-flop)
7. GND (Ground)
8. Q̅2 (Complementary Q Output for the second flip-flop)
9. Q2 (Q Output for the second flip-flop)
10. K2 (K Input for the second flip-flop)
11. J2 (J Input for the second flip-flop)
12. VCC (Positive Power Supply)
13. PRESET (Asynchronous Preset Input for both flip-flops)
14. ENABLE (Enable Input for both flip-flops)

Functional Features

• Dual JK flip-flop with independent clock and clear inputs
• Positive edge-triggered operation
• Asynchronous preset capability
• High-speed operation suitable for various digital applications
• Wide operating voltage range allows compatibility with different systems

Advantages and Disadvantages

Advantages

• High-speed performance enables efficient data processing
• Independent clock and clear inputs provide flexibility in circuit design
• Asynchronous preset capability allows for immediate initialization
• Wide operating voltage range ensures compatibility with diverse systems

Disadvantages

• Limited number of flip-flops (2) may restrict complex circuit designs
• Positive edge-triggered operation may not be suitable for all applications
• Availability of alternative models with additional features may limit its competitiveness in certain scenarios

Working Principles

The CD74HC73M is a dual JK flip-flop that operates on positive edge-triggered clock signals. Each flip-flop has J (data input), K (complement of data input), and clear inputs, along with Q (output) and Q̅ (complementary output). The flip-flops can be independently cleared, preset asynchronously, and enabled/disabled.

When the clock signal transitions from low to high (positive edge), the state of the flip-flop is determined by the J and K inputs. The outputs change according to the logic levels at the inputs, following the JK flip-flop truth table. The asynchronous preset input allows for immediate initialization of the flip-flop's state, regardless of the clock signal.

Detailed Application Field Plans

The CD74HC73M is widely used in various digital systems and applications, including:

1. Counters and frequency dividers
2. Shift registers and storage elements
3. Data synchronization circuits
4. Control and timing circuits
5. Memory address decoding
6. State machines and sequencers
7. Clock signal generation and distribution

Its high-speed operation, independent clock and clear inputs, and asynchronous preset capability make it suitable for a broad range of digital circuit designs.

Detailed and Complete Alternative Models

1. CD74HC73E: Similar to CD74HC73M but in DIP (Dual In-line Package) form
2. CD4013B: Dual D-type flip-flop with similar functionality
3. SN74LS73A: Dual JK flip-flop with different logic family (LS-TTL)

These alternative models offer similar or complementary features to the CD74HC73M, providing options based on specific design requirements and compatibility considerations.

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