The TC74VHCT125AF is a high-speed CMOS quad bus buffer gate with 3-state outputs and TTL-compatible inputs from Toshiba Semiconductor and Storage. It is designed for applications that require high-speed data transmission and the ability to isolate sections of a bus. The TC74VHCT125AF contains four independent bus buffer gates.

Applications:

• Bus Interfacing
• Memory Addressing
• Data Multiplexing
• Data Transmission
• Digital Systems

Features:

• High-speed operation: tpd = 5.0 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 4 µA (max.) at Ta = 25°C
• TTL-compatible input thresholds
• Output drive capability: 15 LSTTL loads
• Symmetrical output impedance: |IOH| = IOL = 12 mA (min.)
• Balanced propagation delays: tPLH ≈ tPHL
• Wide operating voltage range: VCC = 4.5 V to 5.5 V
• Pin and function compatible with 74HCT125

Benefits:

• High Speed: Enables faster data transfer and improved system performance.
• Low Power Consumption: Reduces energy consumption, making it suitable for battery-powered devices.
• TTL Compatibility: Simplifies interfacing with TTL logic levels.
• High Output Drive: Provides sufficient current to drive multiple bus lines.
• 3-State Outputs: Allows isolating sections of a bus for multiple devices to share the same bus lines.
• Standard Pinout: Makes it easy to replace existing 74HCT125 devices.

Additional Details:

The TC74VHCT125AF comes in an SOP14 package. Each buffer has an output enable (OE) input. When OE is low, the buffer is enabled and the output follows the input. When OE is high, the output is in a high-impedance state, effectively disconnecting the buffer from the bus. All inputs are equipped with protection circuits against static discharge. The device operates over a temperature range of -40°C to +85°C.