74HC14DB,118

Overview

The 74HC14DB,118 is a hex inverting Schmitt trigger manufactured by Nexperia. It operates within a supply voltage range of 2.0 V to 6.0 V and features reduced input threshold levels for TTL interfacing. The device includes clamp diodes on inputs to allow current limiting resistors for voltages exceeding VCC. It transforms slowly changing signals into sharply defined jitter-free outputs. The component is housed in an SO-14 plastic small outline package (SOT108-1) with 14 leads.

Feature Summary

• Hex inverter configuration with Schmitt-trigger inputs
• Wide supply voltage operation from 2.0 V to 6.0 V
• Reduced input thresholds enabling TTL logic level interfacing
• Input clamp diodes for over-voltage protection

Applications

• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators

Procurement Notes

Verify the manufacturer designation as Nexperia, which succeeded NXP's Logic division. Confirm the specific ordering suffix ',118' corresponds to the standard tape-and-reel packaging format. Ensure the part number matches the SO-14 package variant rather than TSSOP or QFN options listed in the same datasheet family.

Selection Notes

Select this component when slow-rising signals require noise immunity via hysteresis. The HC series offers CMOS low power dissipation suitable for battery-operated systems. Verify that the required operating temperature range aligns with the -40 °C to +125 °C specification provided for the D package version.

Part Context

This device belongs to the 74HC logic family, characterized by high-speed CMOS technology. It serves as a digital logic gate providing signal inversion with hysteresis. The 'DB' suffix indicates the SO-14 surface-mount package type. It is distinct from the 74HCT14 variant, which has different voltage thresholds optimized for 5V TTL environments.

Replacement Considerations

The 74HC14D is the base part number without the reel suffix. Other package variants include 74HC14PW (TSSOP14) and 74HC14BQ (DHVQFN14). Cross-reference with other manufacturers' 74HC14 equivalents if pin compatibility is required.