74HCT27BQ-Q100X

Overview

The Nexperia 74HCT27BQ-Q100X is a triple 3-input NOR gate from the 74HCT-Q100 logic family, designed for automotive applications. It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range of -40 °C to +125 °C. The device features TTL-compatible input levels and includes clamp diodes on inputs. It is housed in a DHVQFN14 package (SOT762-1) with side-wettable flanks. Static characteristics specify low leakage current and defined output drive capabilities. Dynamic performance at 4.5 V shows a typical propagation delay of 12 ns and transition time of 7 ns.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards
• TTL-compatible input levels for direct interfacing with TTL logic
• DHVQFN14 package with side-wettable flanks enabling automatic optical inspection

Applications

• Automotive electronic control units
• Logic signal processing in vehicle networks
• General-purpose digital logic circuits requiring high noise immunity

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and tape/reel configuration. Confirm that the component meets the required AEC-Q100 Grade 1 qualification level for your target application environment. Cross-reference the datasheet revision date to ensure compatibility with your design specifications.

Selection Notes

Select this component when TTL-level inputs are required alongside CMOS output performance in automotive environments. The DHVQFN14 package offers a compact footprint suitable for space-constrained designs. Ensure the operating voltage remains within the 4.5 V to 5.5 V range to maintain specified electrical characteristics and timing parameters.

Part Context

This part belongs to the 74HC(HCT)27-Q100 series of triple 3-input NOR gates. The 'HCT' designation indicates TTL-compatible inputs, distinguishing it from the standard HC variant which uses CMOS levels. The 'BQ' suffix identifies the DHVQFN14 package option, while 'Q100' signifies automotive qualification. Other package options include SO14 and TSSOP14.

Replacement Considerations

Direct substitutes include other 74HCT27 variants in different packages such as 74HCT27D-Q100 or 74HCT27PW-Q100, provided the pinout and thermal requirements match. Verify functional equivalence regarding input/output voltage levels and propagation delays before substitution.