SN74HCT74DBR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Flip-Flop
• Characteristics: High-speed, low-power, dual D-type flip-flop
• Package: SOIC-14
• Essence: Reliable and efficient digital logic component
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Speed Operation: 74HCT Family
• Output Drive Capability: 10 LSTTL Loads
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 13 ns (typical)
• Input Capacitance: 3.5 pF (typical)

Detailed Pin Configuration

The SN74HCT74DBR has a total of 14 pins arranged as follows:

1. CLR (Clear) - Active LOW clear input
2. D (Data) - Data input for the first flip-flop
3. CLK (Clock) - Clock input
4. PR (Preset) - Active LOW preset input
5. Q (Output) - Output for the first flip-flop
6. Q̅ (Complementary Output) - Complementary output for the first flip-flop
7. GND (Ground) - Ground reference
8. Q̅ (Complementary Output) - Complementary output for the second flip-flop
9. Q (Output) - Output for the second flip-flop
10. VCC (Positive Power Supply) - Positive power supply
11. D (Data) - Data input for the second flip-flop
12. CLR (Clear) - Active LOW clear input
13. CLK (Clock) - Clock input
14. PR (Preset) - Active LOW preset input

Functional Features

• Dual D-type flip-flop with clear and preset capability
• High-speed operation suitable for various digital applications
• Low-power consumption for energy-efficient designs
• Wide supply voltage range allows flexibility in different systems
• Output drive capability enables driving multiple loads

Advantages and Disadvantages

Advantages: - High-speed operation improves system performance - Low-power consumption reduces energy requirements - Clear and preset capability enhances flexibility in circuit design - Wide supply voltage range accommodates different power sources

Disadvantages: - Limited output drive capability may restrict use in certain applications - Propagation delay time may affect timing-sensitive designs

Working Principles

The SN74HCT74DBR is a dual D-type flip-flop that stores data based on clock signals. The input data is latched and stored when the clock signal transitions from low to high. The clear and preset inputs allow for resetting or setting the flip-flop outputs to specific states. The outputs provide both normal and complementary signals, offering versatility in circuit design.

Detailed Application Field Plans

The SN74HCT74DBR can be used in various digital systems and applications, including but not limited to:

1. Sequential logic circuits
2. Data storage and transfer systems
3. Clock synchronization circuits
4. Counters and frequency dividers
5. State machines and control units

Detailed and Complete Alternative Models

1. SN74HCT74N - DIP-14 package, through-hole mounting
2. MC74HCT74AN - PDIP-14 package, wide temperature range
3. CD74HCT74E - PDIP-14 package, extended supply voltage range
4. 74HCT74D - SOIC-14 package, smaller footprint

These alternative models offer similar functionality and characteristics to the SN74HCT74DBR, providing options for different application requirements.

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