SN74HC74DT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, dual D-type flip-flop with set and reset
• Package: SOIC-14
• Essence: Reliable and versatile flip-flop IC
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V
• Low-Level Input Voltage: 0.8V
• High-Level Output Voltage: 4.4V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 85 MHz
• Propagation Delay Time: 9 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74HC74DT has a total of 14 pins, which are assigned as follows:

1. CLR (Clear) - Clear input
2. D1 (Data 1) - Data input for flip-flop 1
3. CLK (Clock) - Clock input
4. D2 (Data 2) - Data input for flip-flop 2
5. PRE (Preset) - Preset input
6. Q2 (Output 2) - Output for flip-flop 2
7. GND (Ground) - Ground reference
8. Q1 (Output 1) - Output for flip-flop 1
9. VCC (Supply Voltage) - Positive supply voltage
10. NC (No Connection) - No connection
11. NC (No Connection) - No connection
12. NC (No Connection) - No connection
13. NC (No Connection) - No connection
14. NC (No Connection) - No connection

Functional Features

• Dual D-type flip-flop with independent set and reset inputs
• High-speed operation, suitable for time-critical applications
• Wide supply voltage range allows compatibility with various systems
• Low power consumption for energy-efficient designs
• Schmitt-trigger inputs provide noise immunity
• Output drive capability of 10 LSTTL loads

Advantages and Disadvantages

Advantages

• Versatile flip-flop IC suitable for a wide range of applications
• High-speed operation enables efficient data processing
• Independent set and reset inputs offer flexibility in circuit design
• Wide supply voltage range enhances compatibility with different systems
• Low power consumption contributes to energy efficiency

Disadvantages

• Limited number of flip-flops (dual) compared to other ICs with more flip-flops
• Not suitable for applications requiring a higher operating frequency beyond 85 MHz

Working Principles

The SN74HC74DT is a dual D-type flip-flop that operates based on the positive-edge triggered clock input. The flip-flop has two independent data inputs (D1 and D2), which are stored and synchronized with the clock signal. The outputs (Q1 and Q2) reflect the state of the inputs at the rising edge of the clock signal. The CLR (Clear) and PRE (Preset) inputs allow for resetting or presetting the flip-flop outputs as needed.

Detailed Application Field Plans

The SN74HC74DT can be used in various applications, including:

1. Digital counters and dividers
2. Data storage and transfer systems
3. Sequential logic circuits
4. Frequency division circuits
5. Clock synchronization circuits
6. Control and timing circuits
7. Memory address decoding

Detailed and Complete Alternative Models

1. SN74HC74N: Similar to SN74HC74DT but available in DIP-14 package
2. MC74HC74A: Dual D-type flip-flop with set and reset, available in SOIC-14 package
3. CD4013BE: CMOS dual D-type flip-flop, available in DIP-14 package
4. 74LS74: Dual D-type flip-flop with clear, available in various packages (DIP-14, SOIC-14, etc.)

These alternative models offer similar functionality to the SN74HC74DT and can be considered based on specific requirements and availability.

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