74LVC126ADTR2G

Overview

The onsemi 74LVC126ADTR2G is a low-voltage CMOS quad bus buffer featuring non-inverting logic and three-state outputs. It operates within a supply voltage range of 2.0 V to 3.6 V, with a maximum quiescent current of 100 nA. The device utilizes a 14-TSSOP surface-mount package. Propagation delay varies by voltage: 9 ns at 3.3 V and 15 ns at 2.5 V. High-level output current is -8 mA, while low-level output current is 8 mA. It supports an operating temperature range from -55°C to +125°C.

Feature Summary

• Provides four independent non-inverting buffers with three-state control for bidirectional bus holding.
• Operates across a wide low-voltage supply range suitable for modern digital systems.
• Features extremely low static power consumption due to CMOS technology.
• Designed for high-speed signal buffering with defined propagation delays.

Applications

• Bidirectional bus-oriented transfers in embedded systems
• Clock drivers and timing synchronization circuits
• Data acquisition systems requiring signal isolation
• Memory interface buffering for low-voltage architectures

Procurement Notes

Verify the specific suffix 'ADTR2G' to confirm the TSSOP-14 package and reel packaging configuration. Ensure compatibility with 3.3 V or 2.5 V logic levels. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Cross-reference the part number against the latest datasheet revision to ensure pinout consistency.

Selection Notes

Select this component when interfacing between different voltage domains requiring level translation or signal buffering. It is suitable for applications demanding low power dissipation and high noise immunity. Consider the 14-TSSOP footprint for space-constrained designs. Verify that the required drive current does not exceed the specified 8 mA limits under worst-case thermal conditions.

Part Context

This part belongs to the LVC (Low Voltage CMOS) family, designed for operation below 3.6 V. It serves as a buffer variant within the broader 74-series logic ecosystem. The device complements other LVC components like inverters and gates, providing standardized interface solutions for low-power digital design.

Replacement Considerations

Direct substitutes include MC74LVC126ADTR2G and MC74LCX126ADTR2G, provided voltage levels match. Verify pinout compatibility before swapping. Alternative families may require level shifting adjustments if supply voltages differ significantly.

FAQ

What is the maximum supply voltage for the 74LVC126ADTR2G?

The maximum supply voltage is 3.6 V.

Does this device have input protection?

Yes, the inputs include clamping diodes for transient protection, though external resistors are recommended for voltages exceeding VCC plus one diode drop.

What is the package type?

The device is housed in a 14-pin Thin Shrink Small Outline Package (TSSOP).