74AHCT1G14SE-7

Overview

The 74AHCT1G14SE-7 is a single-input Schmitt-trigger inverter from Diodes Incorporated, designed for operation within a 4.5V to 5.5V supply voltage range. It features a standard push-pull output capable of ±8 mA drive current at 5.0V. The device utilizes the AHCT logic family, ensuring TTL-compatible input levels while maintaining CMOS low power consumption characteristics. Packaged in an SOT353 (SC-70-5) footprint, it includes robust ESD protection exceeding 2000V via the Human Body Model and 200V via the Machine Model.

Feature Summary

• Schmitt-trigger action at all inputs provides tolerance for slower input rise and fall times.
• Standard push-pull output configuration delivers ±8 mA drive capability at 5.0V.
• Robust ESD protection exceeds 2000V Human Body Model and 200V Machine Model standards.
• Latch-up performance exceeds 100mA per JESD 78 Class II specifications.

Applications

• General purpose logic circuits
• PCs, networking equipment, notebooks, and netbooks
• Computer peripherals including hard drives and CD/DVD ROMs
• TV, DVD, DVR, and set-top boxes
• Cell phones, personal navigation/GPS devices, MP3 players, cameras, and video recorders

Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the SE suffix designates the SOT353 package while W5 indicates SOT25. Confirm RoHS compliance status and lead-free finish requirements against project specifications. Ensure the application environment remains strictly within the recommended operating temperature range of -40°C to +125°C. Validate that unused inputs are properly tied to VCC or Ground to prevent floating states.

Selection Notes

Select this component when TTL-compatible input thresholds are required alongside CMOS power efficiency. The integrated Schmitt trigger makes it suitable for noisy environments or signals with slow transition rates. Verify that the 4.5V to 5.5V supply constraint aligns with the system power architecture. Consider the SOT353 package dimensions if space-constrained surface mount assembly is necessary.

Part Context

This part belongs to the 74AHCT1Gxx series of single-gate logic devices manufactured by Diodes Incorporated. The AHCT designation signifies compatibility with 5V TTL logic levels while utilizing advanced CMOS technology. The '1G' prefix indicates a single gate configuration, and the '14' function code identifies it specifically as an inverter with Schmitt-trigger inputs.

Replacement Considerations

74AHCT1G14W5-7

FAQ

What is the primary benefit of the Schmitt-trigger input on this device?

The Schmitt-trigger action ensures the circuit remains tolerant for slower input rise and fall times, preventing erratic switching caused by noise or signal degradation.

How does the 74AHCT1G14SE-7 handle electrostatic discharge?

It offers significant ESD protection, exceeding 2000V under the Human Body Model (A114-A), 200V under the Machine Model (A115-A), and 1000V under the Charged Device Model (C101C).