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The TC74LCX245FT is a low-voltage CMOS octal bus transceiver manufactured by Toshiba. Below are its key specifications, descriptions, and features:

Specifications:

• Logic Family: CMOS
• Supply Voltage Range (VCC): 1.65V to 3.6V (Low-voltage operation)
• High-Speed Operation: tpd = 4.0ns (max) at 3.3V
• Input/Output Tolerance: 5V-tolerant inputs and outputs
• Output Drive Capability: ±24mA at 3.0V
• Number of Channels: 8-bit bidirectional transceiver
• Direction Control: DIR pin controls data flow (A→B or B→A)
• Output Enable (OE) Pin: Active-low, disables outputs when high
• Package Type: TSSOP-20 (FT package)
• Operating Temperature Range: -40°C to +85°C

Descriptions:

• The TC74LCX245FT is an octal bus transceiver designed for bidirectional data transfer between two buses.
• It features non-inverting 3-state outputs and operates at low voltage (1.65V to 3.6V), making it suitable for battery-powered and mixed-voltage systems.
• The DIR (Direction Control) pin determines the data flow direction (A→B or B→A).
• The OE (Output Enable) pin, when high, places the outputs in a high-impedance state, preventing bus contention.

Features:

• 5V-tolerant inputs and outputs (allows interfacing with 5V logic)
• Low power consumption (ICC = 10μA max at standby)
• Supports live insertion (power-off protection)
• Schmitt-trigger inputs for improved noise immunity
• Compliant with LVTTL/LVCMOS standards
• Packaged in TSSOP-20 (FT) for space-saving applications

This device is commonly used in data communication systems, networking equipment, and mixed-voltage logic interfaces.

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