74AHC14D,112 Equivalent & Substitute Parts

Part Overview

The 74AHC14D,112 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Nexperia USA Inc. in a 14-SO surface mount package. This logic component operates across a 2V to 5.5V supply voltage range and is designed for digital signal inversion applications requiring hysteresis input characteristics. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.

Substiute Parts

74AHC14D,112

Nexperia USA Inc.In Stock: 134674AHC14D,112 Datasheet

Current PartRFQ

74VHC14YMTR

STMicroelectronicsIn Stock: 120974VHC14YMTR Datasheet

DirectRFQ

SN74AHC14QDRQ1

Texas InstrumentsIn Stock: 5680SN74AHC14QDRQ1 Datasheet

DirectRFQ

SN74AHC14MDREP

Texas InstrumentsIn Stock: 19349SN74AHC14MDREP Datasheet

UpgradeRFQ

74VHC14MX

onsemiIn Stock: 810374VHC14MX Datasheet

SimilarRFQ

SN74AHC14DR

Texas InstrumentsIn Stock: 6487SN74AHC14DR Datasheet

SimilarRFQ

SN74AHC14DRG3

Texas InstrumentsIn Stock: 9715SN74AHC14DRG3 Datasheet

SimilarRFQ

SN74AHC14D

Texas InstrumentsIn Stock: 2265SN74AHC14D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74AHC14D,112 is determined by strict equivalence across the following critical parameters:

• Logic type (Inverter with 6 channels, 1 input per channel)
• Schmitt trigger input feature
• Supply voltage range (2V ~ 5.5V)
• Output current capability (8mA high and low)
• Input logic level thresholds
• Propagation delay performance (10.6ns @ 5V, 50pF)
• Package type (14-SOIC surface mount)
• Operating temperature range compatibility
• RoHS3 compliance and MSL rating

Substitute parts are grouped into four categories based on product status and availability: direct manufacturer alternatives, active production upgrades, similar series options, and parametric equivalents. All listed substitutes maintain electrical and mechanical compatibility within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring the 74AHC14D,112, the following selection criteria apply based on product status and compliance:

Active Production Alternatives (Recommended for New Designs): SN74AHC14MDREP (Texas Instruments) offers the widest operating temperature range (-55°C ~ 125°C) and maintains full 74AHC series compatibility. SN74AHC14QDRQ1 and SN74AHC14DRG3 provide active production status with automotive-grade qualification (AEC-Q100) where applicable. SN74AHC14DR remains in active production with standard temperature range support.

Cross-Manufacturer Alternatives: 74VHC14YMTR (STMicroelectronics) provides active production status with identical electrical parameters and automotive qualification. This option supports supply chain diversification while maintaining full functional equivalence.

Packaging Considerations: Tape & Reel packaging is standard for active production parts. Cut Tape & Digi-Reel options are available for lower-volume requirements. Original tube packaging is no longer available due to obsolescence of the 74AHC14D,112.

Compliance: All listed substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with current manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74AHC14D,112 with SN74AHC14MDREP in my existing design?

A: Yes. Both parts are 6-channel inverters with Schmitt trigger inputs in 14-SOIC packages. Electrical parameters including supply voltage (2V ~ 5.5V), output current (8mA), and propagation delay (10.6ns) are identical. SN74AHC14MDREP extends the operating temperature range to -55°C ~ 125°C, making it suitable for wider environmental conditions.

Q: What is the difference between 74AHC and 74VHC series substitutes?

A: Both series maintain identical electrical specifications for this inverter function. The 74VHC series (STMicroelectronics, onsemi) and 74AHC series (Nexperia, Texas Instruments) are functionally equivalent. Series selection depends on supply chain availability and manufacturer preference. All listed parts meet the same parameter requirements.

Q: Does packaging type affect electrical performance?

A: No. Tube, Tape & Reel, and Cut Tape & Digi-Reel packaging types do not affect electrical performance. Packaging selection is determined by production volume requirements and handling processes. All package types contain identical die and electrical characteristics.

Q: Are automotive-qualified versions available?

A: Yes. SN74AHC14QDRQ1 and 74VHC14YMTR carry AEC-Q100 automotive qualification. These parts are suitable for automotive and high-reliability applications requiring formal qualification documentation.

Q: What is the significance of the quiescent current difference in SN74AHC14D?

A: SN74AHC14D specifies 1 µA maximum quiescent current versus 2 µA for other parts. This represents improved power efficiency and remains within acceptable substitution parameters for most applications. Verify power budget requirements for your specific design.

Q: Can I use 74VHC14MX as a substitute despite its obsolete status?

A: 74VHC14MX maintains electrical equivalence but is obsolete. Use only if existing inventory is available and long-term supply is not required. For new designs or production continuity, select from active production alternatives such as SN74AHC14MDREP or SN74AHC14DRG3.