The 74HC/LS374 is a high-performance octal D-type flip-flop IC with 3-state outputs, designed for efficient data storage and synchronous register applications in advanced digital systems. Built using High-Speed CMOS (HC) and Low-Power Schottky TTL (LS) technologies, it offers fast switching speeds, low power consumption, and excellent noise immunity for stable and reliable operation.
The LS version incorporates Schottky transistor technology to reduce propagation delay and improve switching efficiency, while the HC version provides ultra-low quiescent current and a wide operating voltage range from 2V to 6V. This makes it highly compatible with modern low-voltage microcontrollers and mixed-voltage digital systems, offering a clear advantage over traditional TTL flip-flop series.
The 74HC/LS374 features edge-triggered data storage with a common clock input, ensuring synchronized operation across all eight flip-flops. Its 3-state output control allows direct bus interfacing without external buffers, reducing component count and simplifying system design.
With optimized internal architecture, the device delivers stable data retention, efficient thermal performance, and long-term reliability in continuous operation environments.
Available in both DIP and SOP package types, it provides flexibility for prototyping, PCB design, and high-volume production applications.
Key Features & Applications (Combined)
- Octal D-type flip-flop with 3-state outputs
- Edge-triggered synchronous data storage
- Operating voltage range: 2V to 6V (HC), 5V TTL compatible (LS)
- High-speed switching with low propagation delay
- Schottky TTL technology for faster response (LS version)
- Low power CMOS operation (HC version)
- Bus-compatible tri-state outputs
- Available in DIP and SOP packages
Applications:
- Microprocessor and microcontroller data registers
- Memory and bus interface systems
- Digital storage and buffering circuits
- Industrial automation and control systems
- Embedded systems and communication interfaces
- Address/data bus synchronization
- General-purpose digital logic applications
