74HCT126PW-Q100J

Overview

The Nexperia 74HCT126PW-Q100J is a quad buffer and line driver featuring three-state outputs, qualified to AEC-Q100 Grade 1 for automotive use. It operates within a supply voltage range of 4.5 V to 5.5 V. The device utilizes TTL input levels and provides four non-inverting buffers with active HIGH output enable inputs (nOE). When nOE is LOW, outputs enter a high-impedance OFF-state. It is housed in a TSSOP14 package (SOT402-1) and supports an ambient temperature range from -40 °C to +125 °C.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• Three-state outputs controlled by active HIGH enable inputs
• TTL-compatible input logic levels

Applications

• Automotive electronic systems requiring signal buffering
• Mixed-voltage environments utilizing TTL-to-CMOS translation
• High-noise immunity data transmission lines

Procurement Notes

Verify the specific suffix 'Q100J' against official Nexperia documentation to confirm exact tape-and-reel packaging specifications and regional compliance status. Ensure the ordering code matches the required TSSOP14 variant. Confirm availability through authorized distributors as stock levels fluctuate. Cross-reference the datasheet revision date to ensure design compatibility with current manufacturing standards.

Selection Notes

Select this component when TTL-level interface compatibility is required alongside CMOS low-power dissipation characteristics. The wide operating temperature range up to +125 °C makes it suitable for harsh automotive environments. Verify that the application requires active HIGH enable control rather than active LOW. Ensure the system voltage remains strictly within the 4.5 V to 5.5 V recommended operating conditions to maintain specified electrical performance.

Part Context

This part belongs to the Nexperia 74HCT126-Q100 family, which includes variants like the 74HC126-Q100. While the HC series accepts CMOS input levels, the HCT series specifically accepts TTL levels. All members share the same functional block diagram and pinout but differ in input threshold voltages. The Q100 designation indicates automotive-grade reliability and qualification.

Replacement Considerations

The 74HC126-Q100 serves as a functional alternative if CMOS input levels are acceptable instead of TTL. Other Nexperia buffers such as the 74HCT125-Q100 provide similar functionality but utilize active LOW output enable inputs, requiring logic inversion in the design.