74LVC1G126GZYL

Overview

The Nexperia 74LVC1G126GZYL is a single buffer and line driver featuring a non-inverting logic function with a three-state output. It operates within a supply voltage range of 1.65 V to 5.5 V and utilizes the XSON5 package (SOT8065-1) with side-wettable flanks, measuring 1.1 mm by 0.85 mm. The device supports an operating temperature range from -40 °C to +125 °C. Key electrical characteristics include overvoltage tolerant inputs up to 5.5 V, ±24 mA output drive capability at 3.0 V, and IOFF circuitry for partial power-down applications.

Feature Summary

• Provides non-inverting buffering with three-state output control via the OE pin.
• Features IOFF circuitry that disables the output to prevent backflow current during power-down states.
• Inputs are tolerant to voltages up to 5.5 V, enabling direct interfacing with TTL levels in mixed 3.3 V and 5 V environments.
• Schmitt-trigger action on all inputs ensures tolerance to slower input rise and fall times.

Applications

• Partial power-down mode operation
• Mixed 3.3 V and 5 V signal translation
• Bus buffering and line driving

Procurement Notes

Verify the specific ordering suffix GZYL corresponds to the XSON5 package with side-wettable flanks (SOT8065-1). Confirm the required temperature grade matches the standard -40 °C to +125 °C specification. Ensure design compatibility with the 1.65 V to 5.5 V supply voltage range and validate that the package dimensions align with the target PCB footprint constraints.

Selection Notes

Select this component when a compact, single-channel buffer with three-state control is required for high-density designs. The XSON5 package offers a small footprint suitable for space-constrained applications. Choose this part if the application demands robust ESD protection and immunity to slow signal transitions through Schmitt-trigger inputs.

Part Context

This device belongs to the 74LVC family of low-voltage CMOS logic components manufactured by Nexperia. The 74LVC1G126 series provides versatile buffering solutions across multiple package options, including TSSOP, SC-74A, and various XSON variants. The GZYL variant specifically denotes the thermal-enhanced XSON5 package configuration designed for surface-mount assembly.

Replacement Considerations

Direct functional equivalents within the same family include the 74LVC1G125, which shares identical electrical specifications but features an active-low enable input instead of active-high.

FAQ

How does the IOFF circuitry function?

The IOFF circuitry automatically disables the output when the device is powered down, preventing potentially damaging backflow current through the device.

What is the purpose of the Schmitt-trigger inputs?

The Schmitt-trigger action makes the circuit tolerant of slower input rise and fall times, ensuring clean switching even with noisy or gradual signals.