74HCT14D,652

Overview

The Nexperia 74HCT14D,652 is a hex inverting Schmitt trigger integrated circuit belonging to the HCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes a 14-lead SOIC (SOT108-1) package with a body width of 3.9 mm. The device provides six non-inverting buffers with Schmitt-trigger inputs, transforming slowly changing signals into sharply defined outputs. It features reduced input threshold levels for TTL interfacing and includes input clamp diodes. The component supports an ambient operating temperature from -40 °C to +125 °C.

Feature Summary

• Hex inverter configuration with Schmitt-trigger inputs for jitter-free signal conversion
• CMOS low power dissipation with high noise immunity
• ESD protection exceeding 2000 V (HBM) and 1000 V (CDM)
• Latch-up performance exceeding 100 mA per JESD 78 Class II Level B

Applications

• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product data sheet to confirm package type and availability status. Confirm RoHS compliance and REACH registration details directly with the supplier or official documentation before procurement. Ensure the selected variant matches the required temperature range and pinout specifications for the target application design.

Selection Notes

Select this component when TTL-compatible logic levels are required alongside CMOS low power characteristics. The Schmitt-trigger action makes it suitable for noisy environments or applications involving slow-rising input signals. Verify that the 14-lead SOIC package dimensions fit the PCB layout constraints and that the operating voltage range aligns with the system power supply.

Part Context

This part belongs to the 74HCT series of high-speed silicon-gate CMOS devices, which are pin-compatible with Low-power Schottky TTL (LSTTL). The 'D' suffix indicates the SO14 plastic small outline package. The '652' suffix typically denotes specific packaging or tape-and-reel configurations as defined by Nexperia's internal numbering system.

Replacement Considerations

The 74HCT14PW is available in a TSSOP14 package. The 74HCT14BQ is offered in a DHVQFN14 package. These variants share identical logical functionality but differ in physical package dimensions and pin configurations.