74HC374 3-State Output Octal D-Type Flip-Flop IC is a high-performance CMOS logic integrated circuit designed for reliable data storage and bus interfacing applications. It consists of eight edge-triggered D-type flip-flops with 3-state outputs, making it ideal for microprocessor-based systems, data buffering, and digital control circuits. Manufactured using advanced High-Speed CMOS (HC) technology, the 74HC374 offers low power consumption, high noise immunity, and fast switching speeds compared to traditional TTL devices.
This IC captures input data on the rising edge of the clock (CP) and holds it stable until the next clock pulse, ensuring accurate and synchronized data transfer. The Output Enable (OE) pin allows the outputs to be placed in a high-impedance state, enabling multiple devices to share a common data bus without conflict.
Key Features of 74HC374 IC
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Octal D-Type Flip-Flop: Contains eight independent D flip-flops in a single package.
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3-State Outputs: Supports bus-oriented architectures with high-impedance output control.
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Edge-Triggered Operation: Data is latched on the positive (LOW-to-HIGH) clock transition.
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High-Speed CMOS Technology: Faster propagation delay with significantly reduced power consumption.
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Wide Operating Voltage Range: Compatible with both 3.3V and 5V logic systems.
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Low Power Dissipation: Ideal for battery-powered and low-energy applications.
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High Noise Immunity: Improved reliability in electrically noisy environments.
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TTL Compatible Inputs: Seamless integration with existing TTL logic families.
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Standard DIP-20 / SOIC-20 Packages: Easy prototyping and PCB mounting.
Specifications – 74HC374 3-State Output Octal D-Type Flip-Flop IC
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IC Type: Octal D-Type Flip-Flop with 3-State Outputs
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Logic Family: High-Speed CMOS (HC)
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Supply Voltage (Vcc): 2V to 6V
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Clock Type: Positive edge-triggered
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Number of Flip-Flops: 8
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Output Type: 3-State (Tri-State)
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Operating Temperature Range: –40°C to +85°C
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Propagation Delay: Typically low (device-dependent)
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Input Compatibility: TTL / CMOS
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Packages Available: DIP-20, SOIC-20, TSSOP-20
How the 74HC374 Works
The 74HC374 stores 8-bit parallel data from the D inputs when a rising clock edge is detected. The stored data appears at the Q outputs and remains unchanged until the next clock event. When the OE pin is LOW, outputs are enabled and actively drive the bus. When OE is HIGH, all outputs switch to a high-impedance state, effectively disconnecting the IC from the bus. This makes the 74HC374 an excellent choice for data bus isolation and register expansion.
Applications of 74HC374 IC
The versatility of the 74HC374 makes it suitable for a wide range of digital and embedded system applications, including:
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Microprocessor and Microcontroller Systems
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Data Bus Buffering and Latching
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Register Banks and Data Storage
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Memory Address Registers
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Digital Signal Processing Circuits
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Industrial Control Systems
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FPGA and CPLD Interfacing
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LED Display Drivers
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I/O Expansion Modules
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Timing and Synchronization Circuits
Why Choose the 74HC374?
The 74HC374 3-State Output Octal D-Type Flip-Flop IC stands out due to its combination of speed, reliability, and low power consumption. Its tri-state outputs make it especially valuable in modern digital designs that require efficient bus sharing and controlled data flow. Whether you are designing embedded systems, educational projects, or industrial electronics, this IC offers a robust and cost-effective solution.
Buy 74HC374 IC Online
If you are looking for a reliable octal D-type flip-flop IC, the 74HC374 is a proven choice trusted by engineers, students, and hobbyists worldwide. Order now to enhance the performance and flexibility of your digital circuits.
Package Includes:
1 x 74HC374 3-State Output Octal D-Type Flip-Flop IC (DIP-20 Package)
FAQ
1. Where can we buy this 74HC374 3-State Output Octal D-Type Flip-Flop IC?
This product is available online https://aiiottech.in/product/74hc374-3-state-output-octal-d-type-flip-flop/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103
2. When can I get this 74HC374 3-State Output Octal D-Type Flip-Flop IC after placing the order?
RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.
Video Link: SN74HC374 Octal Edge-Triggered D-Type Flip-Flops with 3-State Outputs




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