The TC74LCX126FT, manufactured by Toshiba Semiconductor and Storage, is a low-voltage CMOS quad bus buffer gate with 3-state outputs. This buffer is designed for high-speed and low-power operation, making it suitable for various applications, especially in portable devices where power consumption is a significant concern.

Applications

• Memory interfacing
• Data bus isolation
• Address buffering
• Line driving
• Multiplexing

Features

• Low-voltage operation: VCC = 2.0 V to 3.6 V
• High-speed operation: tpd = 4.3 ns (typ) at VCC = 3.3 V
• Low power dissipation: ICC = 10 μA (max) at Ta = 25°C
• Output drive capability: IOL/IOH = ±24 mA (min) at VCC = 3.0 V
• 3-state outputs for bus isolation
• TTL compatible inputs: VIH = 1.7 V (min), VIL = 0.8 V (max)
• Operating temperature range: -40 to 85°C
• Package: TSSOP (Thin Shrink Small Outline Package)

Benefits

• Prolonged battery life in portable applications due to its low power consumption.
• Improved system performance from the fast switching speeds.
• Effective bus isolation using the 3-state outputs.
• Direct interfacing with TTL logic levels.
• High output drive capability to support numerous loads.
• Dependable performance over a wide temperature spectrum.

Additional Details

The TC74LCX126FT is provided in a TSSOP14 package. Each of the four buffers has a separate control input that enables or disables the output. When the control input is low, the output is in a high-impedance state, effectively disconnecting the buffer from the bus. This allows multiple devices to share the same bus lines without contention. The input protection circuits prevent damage from electrostatic discharge, improving the device's robustness. This component is frequently used in systems with multiplexed buses and shared memory.

The device's wide operating temperature range makes it a suitable option for applications in various environmental conditions.