Buffers & Line Drivers Tri-State Octal

SN74HC244N – Tri-State Octal Buffer/Line Driver – Texas Instruments

Optimize signal integrity in digital systems with the SN74HC244N octal buffer and line driver from Texas Instruments. This high-performance logic IC delivers robust 3-state outputs for efficient bus management and signal amplification across industrial, automotive, and embedded applications. PCX ensures genuine Texas Instruments components with same-day shipping and dedicated technical support.

Key Features

• Logic Type: Non-Inverting Buffer with 3-State Outputs
• Configuration: 2 Elements x 4 Bits
• Supply Voltage: 2V to 6V (Wide Operating Range)
• Output Current: 7.8mA High/Low Drive Capability
• Temperature Range: -40°C to +85°C (Industrial Grade)
• Package: 20-Pin PDIP (Through-Hole Mount)

Technical Details

Part of the 74HC series, this active-status IC features TTL-compatible inputs and CMOS output levels. The 3-state outputs allow multiple devices to share a common bus without signal contention, while the symmetrical high/low current drive (7.8mA) ensures reliable signal transmission in noisy environments. Housed in a durable 20-pin DIP package (7.62mm width), it supports easy prototyping and repair.

Typical Applications

• Microprocessor/MCU address/data bus buffering
• Signal isolation in industrial control systems
• Automotive sensor interface modules
• LED display drivers and backplane communication
• Test equipment and measurement instrumentation

About Texas Instruments

Texas Instruments (TI) is a global semiconductor leader with over 90 years of innovation in analog and embedded processing technologies. Renowned for rigorous quality standards, TI components consistently deliver high reliability in mission-critical applications from aerospace to consumer electronics.

TI’s 74HC logic family, including the SN74HC244N, exemplifies the company’s commitment to power efficiency and signal integrity. All TI ICs undergo extensive validation testing, ensuring compliance with industrial temperature ranges and long-term performance stability.

About Buffers & Line Drivers

Buffers and line drivers serve as critical signal-conditioning components in digital circuits. They amplify weak signals, prevent loading effects, and isolate subsystems to maintain data integrity across long PCB traces or cables. Non-inverting types like the SN74HC244N preserve signal polarity while boosting current capacity.

3-state variants add high-impedance capability, enabling efficient shared bus architectures in multiplexed systems. These ICs are foundational in computing, communications, and control systems where signal degradation or noise interference must be minimized.

Packaging Options

Available in protective Tube packaging for secure handling and automated assembly. Contact PCX for reel packaging alternatives or bulk quantities.

Frequently Asked Questions

Q: What does “3-State” mean in this context?
A: It allows outputs to be active-high, active-low, or high-impedance (disconnected), enabling multiple devices to share a bus without conflict.

Q: Is this IC compatible with 5V and 3.3V systems?
A: Yes, its 2V–6V operating range supports both 5V TTL and 3.3V CMOS logic levels.

Q: Can I use this for level shifting between voltage domains?
A: While primarily a buffer, it can interface between different voltage systems within its 2V–6V range when inputs meet VIH/VIL thresholds.

Q: What’s the difference between buffer and driver ICs?
A: Buffers primarily isolate signals, while drivers focus on current boosting; this device combines both functions.

Q: Does PCX provide datasheets?
A: Yes, access the full SN74HC244N datasheet on our site.

Q: Are these RoHS compliant?
A: All Texas Instruments parts sold by PCX meet current RoHS 3 standards.

Note: Product images are representational; refer to datasheet for exact dimensions.

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