SN74AHCT14DGVRE4

Overview

The SN74AHCT14DGVRE4 is a hex Schmitt-trigger inverter manufactured by Texas Instruments. It belongs to the 74AHCT logic family, utilizing CMOS technology with TTL-compatible inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and features six independent inverting channels. It is housed in a 14-pin TVSOP surface-mount package. Key electrical characteristics include a maximum propagation delay of 8 ns at 5 V with a 50 pF load, and output drive currents of ±8 mA. The component supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Integrates six independent Schmitt-trigger inverters for signal conditioning
• Provides TTL-compatible input thresholds for direct interfacing with TTL logic systems
• Delivers high-speed performance with low propagation delay characteristics
• Offers robust output drive capability suitable for driving multiple loads

Applications

• Waveform shaping and pulse generation circuits
• Clock signal buffering and distribution networks
• Noise immunity enhancement in digital communication interfaces
• Transition edge detection in timing applications

Procurement Notes

Verify the suffix E4 indicates lead-free composition and RoHS compliance when sourcing. Confirm the TVSOP-14 package dimensions match PCB footprint requirements. Ensure the 4.5V to 5.5V supply voltage aligns with system power rails. Check that the industrial temperature range meets environmental specifications. Validate the manufacturer part number against official Texas Instruments documentation to avoid counterfeit components.

Selection Notes

Select this component when TTL-level compatibility is required alongside CMOS noise immunity. The AHCT series bridges the gap between older TTL standards and modern CMOS efficiency. Consider the TVSOP package for space-constrained surface-mount designs. Evaluate the 8mA output current against load requirements to ensure signal integrity. Compare propagation delays if higher speed is needed for specific clock frequencies.

Part Context

This device is part of the broader 74AHCT14 family of hex Schmitt-trigger inverters. Variants exist in different packages such as SOIC and TSSOP, and automotive grades like Q1 versions offer extended temperature ranges. The DGVRE4 specifically denotes the TVSOP package with tape-and-reel packaging for automated assembly processes.

Replacement Considerations

SN74AHCT14DR serves as a pin-compatible alternative in SOIC-14 packaging. SN74AHCT14DGVR offers similar functionality in TVSOP-14 but may differ in reel specifications. Verify logic family compatibility and package dimensions before substitution.