CD74HC74EG4

Product Overview

• Category: Integrated Circuit
• Use: Digital Logic Flip-Flop
• Characteristics: High-Speed, Dual D-Type Positive-Edge-Triggered Flip-Flop
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Reliable and efficient digital logic component
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: HC (High-Speed CMOS)
• Number of Flip-Flops: 2
• Trigger Type: Positive Edge
• Clock Frequency: Up to 25 MHz
• Propagation Delay: 9 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HC74EG4 has a total of 14 pins. The pin configuration is as follows:

1. CLR (Clear Input for both flip-flops)
2. D1 (Data Input for the first flip-flop)
3. CLK (Clock Input)
4. PR (Preset Input for both flip-flops)
5. Q1 (Output of the first flip-flop)
6. Q1̅ (Complementary output of the first flip-flop)
7. GND (Ground)
8. Q2 (Output of the second flip-flop)
9. Q2̅ (Complementary output of the second flip-flop)
10. VCC (Positive Power Supply)
11. D2 (Data Input for the second flip-flop)
12. PRE (Preset Enable Input)
13. CLR̅ (Complementary clear input for both flip-flops)
14. OE (Output Enable)

Functional Features

• Dual D-Type Flip-Flop: Contains two independent flip-flops in a single package.
• Positive Edge Triggered: The flip-flop changes its state on the rising edge of the clock signal.
• High-Speed Operation: Suitable for applications requiring fast switching times.
• Wide Supply Voltage Range: Can operate with a supply voltage between 2V and 6V.
• Complementary Outputs: Provides both normal and inverted outputs for each flip-flop.

Advantages and Disadvantages

Advantages: - Compact Design: Integration of two flip-flops in a single package saves board space. - High-Speed Operation: Enables efficient digital signal processing. - Versatile: Can be used in various digital logic applications. - Reliable: Manufactured using high-quality materials and processes.

Disadvantages: - Limited Flip-Flops: Contains only two flip-flops, which may not be sufficient for complex designs. - Power Consumption: Requires a power supply to operate, consuming electrical energy.

Working Principles

The CD74HC74EG4 is a positive-edge-triggered flip-flop. It stores binary data based on the input signals and clock transitions. On the rising edge of the clock signal, the data at the D1 and D2 inputs are transferred to the Q1 and Q2 outputs, respectively. The CLR and PR inputs allow for clearing or presetting the flip-flop states. The PRE input enables or disables the preset function. The OE input controls the output enable/disable feature.

Detailed Application Field Plans

The CD74HC74EG4 can be utilized in various digital systems and applications, including but not limited to:

1. Microcontrollers: Used for storing temporary data during microcontroller operations.
2. Communication Systems: Employed in data transmission and reception circuits.
3. Digital Counters: Facilitates counting and sequencing operations.
4. Memory Addressing: Assists in addressing memory locations in digital storage devices.
5. Control Systems: Enables the storage and manipulation of control signals.

Detailed and Complete Alternative Models

1. SN74HC74N: Similar dual D-type flip-flop with a different package (DIP-14).
2. MC74HC74AN: Dual positive-edge-triggered flip-flop with complementary outputs.
3. CD4013BE: Dual D-type flip-flop with set and reset inputs.

These alternative models provide similar functionality and can be used as substitutes for the CD74HC74EG4 in various applications.

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