74ACTQ14MTCX Equivalent & Substitute Parts

Part Overview

The 74ACTQ14MTCX is a 6-channel inverter IC with Schmitt trigger inputs manufactured by onsemi in a 14-TSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The device operates within a 4.5V to 5.5V supply voltage range and is suitable for logic signal conditioning applications requiring hysteresis input characteristics.

Substiute Parts

74ACTQ14MTCX

onsemiIn Stock: 79774ACTQ14MTCX Datasheet

Current PartRFQ

MC74ACT14DTR2G

onsemiIn Stock: 50434MC74ACT14DTR2G Datasheet

SimilarRFQ

74ACT14MTCX

onsemiIn Stock: 1592074ACT14MTCX Datasheet

Parametric EquivalentRFQ

SN74ACT14PW

Texas InstrumentsIn Stock: 1947SN74ACT14PW Datasheet

DirectRFQ

SN74ACT14PWR

Texas InstrumentsIn Stock: 5395SN74ACT14PWR Datasheet

DirectRFQ

SN74ACT14DBR

Texas InstrumentsIn Stock: 2578SN74ACT14DBR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ACTQ14MTCX is determined by the following criteria:

Primary Substitution Parameters:

• Logic type (Inverter)
• Number of circuits (6)
• Number of inputs (1)
• Schmitt trigger feature
• Supply voltage range (4.5V ~ 5.5V)
• Output current capability (24mA, 24mA)
• Operating temperature range (-40°C ~ 85°C)
• Surface mount packaging (14-TSSOP or 14-SSOP)

Substitute Categories:

1. Parametric Equivalent (74ACT14MTCX): Identical electrical specifications and packaging to the main part, with active product status.

2. Direct Equivalents (SN74ACT14PW, SN74ACT14PWR): Texas Instruments manufactured parts with matching functional specifications, differing only in packaging format and product status.

3. Similar Equivalents (MC74ACT14DTR2G, SN74ACT14DBR): onsemi and Texas Instruments parts with functionally equivalent specifications; SN74ACT14DBR uses 14-SSOP packaging instead of 14-TSSOP.

Parameter Comparison

Engineering Selection Recommendations

First Choice for Direct Replacement: 74ACT14MTCX (onsemi) - Active product status with identical electrical specifications and packaging to the obsolete 74ACTQ14MTCX. This part provides the most direct substitution path.

Alternative Selections:

• SN74ACT14PWR (Texas Instruments): Active product with matching electrical specifications. Suitable for applications where Texas Instruments sourcing is preferred or required. Available in Cut Tape and Digi-Reel packaging.

• MC74ACT14DTR2G (onsemi): Active product with marginally higher quiescent current (4 µA vs. 2 µA) and propagation delay (11.5ns vs. 10ns). Acceptable for applications where these parameter variations do not impact system performance.

• SN74ACT14DBR (Texas Instruments): Active product with different package footprint (14-SSOP vs. 14-TSSOP). Suitable only for designs where PCB layout can accommodate the larger 5.30mm package width.

Compliance Status: All substitute parts listed carry RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Frequently Asked Questions (FAQ)

Q: Can 74ACT14MTCX directly replace 74ACTQ14MTCX? A: Yes. The 74ACT14MTCX provides direct electrical and mechanical compatibility with identical specifications and 14-TSSOP packaging. The primary difference is product status: 74ACT14MTCX is active while 74ACTQ14MTCX is obsolete.

Q: What is the difference between 14-TSSOP and 14-SSOP packages? A: Both are surface mount packages with 14 pins. The 14-TSSOP has a width of 0.173" (4.40mm), while 14-SSOP has a width of 0.209" (5.30mm). PCB footprints are not interchangeable; verify layout compatibility before selecting SN74ACT14DBR.

Q: Are the Texas Instruments parts (SN74ACT14PW, SN74ACT14PWR) compatible with the onsemi original? A: Yes, functionally compatible. Both manufacturers' 74ACT14 series parts meet the same logic specifications. Input logic level thresholds differ slightly (onsemi: 0.8V/2V vs. Texas Instruments: 0.5V~1.4V/1.2V~2.1V), but both operate within standard TTL/CMOS logic levels.

Q: Why does MC74ACT14DTR2G have higher quiescent current? A: The 4 µA quiescent current specification for MC74ACT14DTR2G is within acceptable tolerance for the 74ACT14 logic family. This parameter variation does not affect functional compatibility for most applications.

Q: What packaging options are available? A: Substitute parts are available in Tape & Reel (TR), Cut Tape (CT) & Digi-Reel, and Tube packaging formats. Select based on procurement volume and assembly process requirements.

Q: Are all substitute parts RoHS compliant? A: Yes. All listed substitute parts carry RoHS3 compliance certification, meeting current environmental and regulatory standards.