74HC7540D-Q100J

Overview

The Nexperia 74HC7540D-Q100J is an octal Schmitt trigger buffer and line driver with inverting outputs and three-state capability. It operates within a supply voltage range of 2.0 V to 6.0 V and supports ambient temperatures from -40 °C to +125 °C. The device features two active-low output enable inputs (OE1, OE2) and includes input clamp diodes for interfacing with voltages exceeding VCC. It complies with JEDEC standards JESD8C and JESD7A, offering high noise immunity and CMOS low power dissipation.

Feature Summary

• Automotive qualification in accordance with AEC-Q100 Grade 1 standard
• Schmitt-trigger inputs transform slowly changing signals into sharply defined jitter-free outputs
• Dual active-low output enables control high-impedance OFF-states independently
• Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

Applications

• Automotive electronic systems requiring qualified logic components
• Bus driver applications utilizing octal data transmission
• Line driving circuits requiring high noise immunity
• Systems operating with mixed voltage levels via input clamp diodes

Procurement Notes

Verify the specific suffix 'J' against the manufacturer's current ordering information to confirm package type and temperature grade alignment. Confirm that the SO20 plastic small outline package (SOT163-1) matches the target PCB footprint requirements. Ensure design specifications align with the -40 °C to +125 °C operating range documented in the product data sheet revision 2.

Selection Notes

Select this component when an octal inverting buffer with Schmitt trigger action is required for noisy environments. The dual output enable pins allow flexible bus management configurations. Verify that the 2.0 V to 6.0 V supply voltage range covers all system rails. Consider the SO20 package dimensions if space constraints are critical compared to smaller alternatives.

Part Context

This part belongs to the Nexperia 74HC series of automotive-grade logic ICs. It is designed for robust performance in demanding environments, featuring compliance with strict automotive reliability standards. The device integrates standard HC logic functionality with enhanced Schmitt trigger characteristics and three-state outputs for complex digital interface designs.

Replacement Considerations

Check for direct equivalents such as the 74HCS7540 or other 74HC7540 variants from different manufacturers, ensuring pin compatibility and electrical parameter matching. Verify that any substitute maintains the AEC-Q100 Grade 1 qualification if automotive usage is required.