SN74AHC74RGYR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-Speed, Low-Power, Dual D-Type Positive-Edge-Triggered Flip-Flop
• Package: 14-VQFN (3.5mm x 3.5mm)
• Essence: This IC is a dual D-type flip-flop that operates at high speed while consuming low power. It is designed to be triggered on the positive edge of the clock signal.
• Packaging/Quantity: Available in reels with 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 5.5V
• High-Speed Operation: 8ns maximum propagation delay
• Low Power Consumption: ICC = 4µA maximum
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: ±24mA at 3.3V
• Input Voltage Levels: VIL = 0.8V, VIH = 2V
• Pin Count: 14

Detailed Pin Configuration

The SN74AHC74RGYR has a total of 14 pins, which are assigned specific functions as follows:

1. CLR (Clear) - Active LOW clear input
2. D1 (Data Input 1) - Data input for flip-flop 1
3. CLK (Clock) - Clock input
4. D2 (Data Input 2) - Data input for flip-flop 2
5. Q1 (Output 1) - Output of flip-flop 1
6. Q1̅ (Complementary Output 1) - Complementary output of flip-flop 1
7. GND (Ground) - Ground reference
8. Q2 (Output 2) - Output of flip-flop 2
9. Q2̅ (Complementary Output 2) - Complementary output of flip-flop 2
10. PRE (Preset) - Active LOW preset input
11. PR̅E (Complementary Preset) - Active HIGH complementary preset input
12. CLR̅ (Complementary Clear) - Active HIGH complementary clear input
13. VCC (Supply Voltage) - Positive supply voltage
14. OE (Output Enable) - Active LOW output enable input

Functional Features

• Dual D-Type Flip-Flop: The SN74AHC74RGYR consists of two independent D-type flip-flops, allowing for the storage and transfer of data.
• Positive-Edge Triggered: The flip-flops are triggered on the positive edge of the clock signal, ensuring accurate timing and synchronization.
• Clear and Preset Inputs: The IC provides clear and preset inputs to initialize the flip-flop outputs to a known state.
• Output Enable Control: The output enable input allows for the activation or deactivation of the flip-flop outputs.

Advantages and Disadvantages

Advantages: - High-Speed Operation: The IC offers fast propagation delay, making it suitable for applications requiring quick data storage and transfer. - Low Power Consumption: With a maximum current consumption of 4µA, the IC is energy-efficient and helps prolong battery life in portable devices. - Small Package Size: The 14-VQFN package with dimensions of 3.5mm x 3.5mm enables space-saving integration in compact electronic designs.

Disadvantages: - Limited Functionality: The IC is specifically designed as a dual D-type flip-flop and may not be suitable for applications requiring more complex logic functions. - Single Supply Voltage Range: The operating voltage range of 2V to 5.5V may limit compatibility with certain systems that require higher or lower voltages.

Working Principles

The SN74AHC74RGYR operates based on the principles of D-type flip-flops. When the clock input (CLK) receives a positive edge, the data inputs (D1 and D2) are transferred to the corresponding outputs (Q1 and Q2). The clear (CLR) and preset (PRE) inputs allow for initialization of the flip-flop outputs to a known state. The output enable (OE) input controls the activation or deactivation of the flip-flop outputs.

Detailed Application Field Plans

The SN74AHC74RGYR can be utilized in various applications, including but not limited to:

1. Digital Communication Systems: Used for data storage and synchronization in communication protocols such as UART, SPI, and I2C.
2. Microcontroller and FPGA Designs: Employed for register-based operations, state machine implementations, and synchronization between different modules.
3. Signal Processing Circuits: Utilized in digital filters, signal generators, and waveform shaping circuits.
4. Timing and Control Circuits: Integrated into systems requiring precise timing control, such as clock dividers