The TC74VHC244FK-ELK is an octal buffer/line driver with non-inverting 3-state outputs from Toshiba Semiconductor and Storage. It's part of the VHC (Very High-Speed CMOS) series, designed for high-speed operation while maintaining CMOS low power dissipation. This device is primarily used to amplify and drive signals across backplanes, cables, or wherever higher drive strength is needed.

Applications

• Memory addressing
• Data bus buffering
• Line driving in communication systems
• Clock driving
• Signal amplification for high fan-out systems

Features

• High-speed operation: tpd = 4.1 ns (typ.) at VCC = 5V
• Low power dissipation: ICC = 4 μA (max.) at VCC = 5V
• Wide operating voltage range: VCC = 2V to 5.5V
• Output drive capability: 15 LSTTL loads
• Inputs accept voltages higher than VCC
• 3-state outputs for bus-oriented applications
• Available in a small SSOP20 package

Benefits

• Improved system performance due to high-speed operation
• Reduced power consumption for energy-efficient designs
• Flexible operation across a wide voltage range
• Enhanced signal integrity with strong output drive capability
• Compatibility with mixed-voltage systems
• Versatile use in bus-oriented architectures
• Compact size for space-constrained applications

Technical Specifications

The TC74VHC244FK-ELK operates at a supply voltage (VCC) range of 2V to 5.5V. It features a typical propagation delay (tpd) of 4.1 ns at VCC = 5V, ensuring high-speed data transfer. The device has a quiescent current (ICC) of 4 μA (max.) at VCC = 5V, which minimizes power consumption. The output drive capability is 15 LSTTL loads, making it suitable for driving multiple devices. The inputs can accept voltages higher than VCC, providing flexibility in mixed-voltage systems. It is housed in a SSOP20 (Shrink Small Outline Package) which is compact and easy to solder. The 3-state outputs allow the device to be disabled, effectively disconnecting it from the bus and preventing signal contention.

The TC74VHC244FK-ELK is an essential component in many digital systems requiring high-speed, low-power buffering and line driving capabilities. Its combination of speed, low power consumption, and robust output drive makes it a versatile choice for a wide range of applications.