74HC14D,652

Overview

The Nexperia 74HC14D,652 is a hex inverting Schmitt trigger manufactured by Nexperia USA Inc. It operates within a supply voltage range of 2.0 V to 6.0 V and features CMOS low power dissipation with high noise immunity. The device includes clamp diodes on inputs, allowing interfacing to voltages exceeding VCC via current limiting resistors. It transforms slowly changing input signals into sharply defined jitter-free output signals. The component is housed in an SO14 plastic small outline package (SOT108-1) with a body width of 3.9 mm. It supports an operating temperature range from -40 °C to +125 °C.

Feature Summary

• Schmitt-trigger inputs transform slowly changing signals into sharply defined jitter-free outputs
• CMOS technology provides low power dissipation and high noise immunity
• Input clamp diodes enable interfacing to voltages exceeding the supply voltage

Applications

• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and tape/reel specifications. Confirm that the procurement channel sources directly from authorized distributors or Nexperia to ensure product authenticity. Check for any recent Product Change Notices regarding assembly location or material composition updates before finalizing orders.

Selection Notes

Select this component when designing circuits requiring signal conditioning for noisy environments or slow-rising waveforms. The wide supply voltage range allows flexibility in system design across different logic families. Ensure the application does not exceed the absolute maximum ratings for input clamping current or total power dissipation, particularly at elevated temperatures where derating applies.

Part Context

This part belongs to the 74HC series of high-speed silicon-gate CMOS logic devices. It is pin-compatible with Low-power Schottky TTL standards. The device complies with JEDEC JESD7A standards for operation from 2.0 V to 6.0 V. It offers robust ESD protection, exceeding 2000 V under Human Body Model testing and 1000 V under Charged Device Model testing.

Replacement Considerations

The 74HCT14D is a compatible alternative within the same family offering TTL-compatible input levels. Verify that the replacement meets the required supply voltage constraints, as HCT variants typically operate between 4.5 V and 5.5 V.