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The TC74VHCT244AFT is a high-speed CMOS octal bus buffer manufactured by Toshiba. Below are its key specifications, descriptions, and features:

Specifications:

• Logic Type: Octal Bus Buffer/Line Driver
• Technology: CMOS
• Supply Voltage Range (VCC): 4.5V to 5.5V
• Input Voltage (VI): 0V to VCC
• Output Voltage (VO): 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay (tpd): 5.5 ns (max) at VCC = 5V
• Input Capacitance (CI): 4.5 pF (typ)
• Output Current (IO): ±8 mA (max)
• Package Type: TSSOP-20

Descriptions:

• The TC74VHCT244AFT is a 3-state non-inverting buffer with two active-low output enable pins (OE1, OE2).
• Designed for high-speed CMOS logic while maintaining TTL compatibility.
• Provides low power consumption and high noise immunity.
• Suitable for bus driving applications in digital systems.

Features:

• High-Speed Operation: Optimized for 5V systems.
• TTL-Compatible Inputs: Accepts TTL-level signals.
• 3-State Outputs: Allows bus-oriented applications.
• Low Power Consumption: ICC = 4 μA (max) at Ta = 25°C.
• Balanced Propagation Delays: Ensures signal integrity.
• ESD Protection: Exceeds 2000V (HBM).

This device is commonly used in microprocessor interfaces, memory systems, and data transmission circuits.

For detailed electrical characteristics and application notes, refer to the official Toshiba datasheet.