The TC74VHC125FT(EK2) is a high-speed CMOS quad bus buffer gate with three-state outputs. This device is part of the Toshiba VHC (Very High-Speed CMOS) logic family, providing the speed of bipolar logic with the low power consumption of CMOS technology. It consists of four independent buffer gates, each with a three-state output control. When the output enable (OE) input is LOW, the buffer is enabled, and the output follows the input. When OE is HIGH, the output is in a high-impedance (off) state, allowing multiple devices to share a common bus.

Applications

• Bus interface
• Memory addressing
• Data routing
• Isolation of circuits
• Multiplexing

Features

• High-speed operation: tpd = 4.3 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 2 μA (max.) at Ta = 25°C
• Output drive capability: 10 LSTTL loads
• Three-state outputs
• Wide operating voltage range: VCC = 2 V to 5.5 V
• Pin and function compatible with 74LS125

Benefits

• Enables high-speed data transfer on bus lines.
• Reduces power consumption for energy efficiency.
• Allows multiple devices to share a common bus without contention.
• Provides flexible power supply options.
• Simple replacement for older logic devices.

Additional Details

The TC74VHC125FT(EK2) is available in a TSSOP (Thin Small Outline Package). The suffix (EK2) typically relates to specific packing and reel options. The device is designed for operation over a wide temperature range. The three-state output feature makes it ideal for bus-oriented applications. It can be used for address decoding, memory interfacing, and various control applications.