Product Overview: SN74LVC126APWLE

The SN74LVC126APWLE from Texas Instruments is a high-performance, quadruple bus buffer gate that features independent line drivers with 3-state outputs. Each output is disabled when the associated output-enable (OE) input is high. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This device is designed for 2.7-V to 3.6-V VCC operation, making it suitable for interfacing with 3.3-V logic in mixed 3.3-V/5-V systems. The SN74LVC126APWLE is optimized for low-voltage applications and provides the additional feature of 5-V tolerant inputs, which allows for direct interfacing with 5-V TTL logic without the need for additional level shifting.

The SN74LVC126APWLE is fabricated using an advanced CMOS technology which provides the benefit of low static power consumption and low dynamic power consumption. The device also maintains a high speed of operation, similar to equivalent Bipolar Schottky TTL while having a significantly reduced power consumption profile, which is crucial for power-sensitive designs.

Key features of the SN74LVC126APWLE include:

• Support for 2.7-V to 3.6-V VCC operations
• 5-V tolerant inputs for interfacing with 5-V logic
• Low power consumption, suitable for battery-powered and energy-efficient applications
• High drive capability, allowing for driving of heavy loads
• Inputs accept voltages up to 5.5V, providing design flexibility
• Typical VOLP (output ground bounce)
• Typical VOHV (output VOH undershoot) >2V at VCC = 3.3V, TA = 25°C

Applications for the SN74LVC126APWLE are varied and include signal gating, buffering, and driving of bus lines in a wide range of systems such as personal computers, servers, networking, telecommunications, and consumer electronics. Its robust design and advanced features make it an ideal choice for critical applications that require reliable and consistent performance.

The device is provided in a TSSOP (thin shrink small outline package) form factor, which is ideal for space-constrained applications. The SN74LVC126APWLE is also RoHS compliant, ensuring adherence to environmental standards and regulations.