74ACT14MTC Equivalent & Substitute Parts

Part Overview

The 74ACT14MTC is a 6-channel inverter IC with Schmitt trigger inputs manufactured by onsemi in a 14-TSSOP surface mount package. This logic component is designed for signal inversion applications requiring hysteresis input characteristics. The part is currently active in production with 3,980 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when sourcing from multiple suppliers is needed for supply chain resilience.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Features	Schmitt Trigger
Voltage - Supply	4.5V ~ 5.5V
Current - Output High, Low	24mA, 24mA
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Base Product Number	74ACT14
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of 74ACT14 series inverter ICs is determined by the following criteria:

Functional Equivalence: All substitute parts maintain identical logic type (inverter), circuit count (6 channels), input configuration (1 input per channel), and Schmitt trigger feature set.

Electrical Compatibility: All parts operate within the same supply voltage range (4.5V ~ 5.5V) and output current specifications (24mA high and low). Operating temperature range remains -40°C ~ 85°C across all variants.

Package Compatibility: Substitutes are grouped by physical package type. The 74ACT14MTC uses 14-TSSOP packaging. Substitute SN74ACT14DBR uses 14-SSOP packaging, which differs in physical dimensions but maintains the same pin count and functionality. Other substitutes (MC74ACT14DTR2G, SN74ACT14PW, SN74ACT14PWR) use 14-TSSOP packaging matching the primary part.

Packaging Format: Substitutes differ in supply format (Tube, Tape & Reel, Cut Tape & Digi-Reel) but do not affect electrical performance or board-level compatibility.

Regulatory Compliance: All parts maintain ROHS3 compliance, MSL Level 1, and REACH unaffected status.

Parameter Comparison

Part Number	Manufacturer	Package Type	Packaging Format	Current - Quiescent (Max)	Propagation Delay @ 5V, 50pF	Input Logic Level - Low	Input Logic Level - High	Product Status	Inventory
74ACT14MTC	onsemi	14-TSSOP	Tube	2 µA	10ns	0.8V	2V	Active	3,980 Pcs
MC74ACT14DTR2G	onsemi	14-TSSOP	Tape & Reel (TR)	4 µA	11.5ns	0.8V	2V	Active	50,400 Pcs
SN74ACT14DBR	Texas Instruments	14-SSOP	Tape & Reel (TR)	2 µA	11.5ns	0.5V ~ 1.4V	1.2V ~ 2.1V	Active	2,492 Pcs
SN74ACT14PW	Texas Instruments	14-TSSOP	Tube	2 µA	11.5ns	0.5V ~ 1.4V	1.2V ~ 2.1V	Discontinued at DiGi Electronics	1,900 Pcs
SN74ACT14PWR	Texas Instruments	14-TSSOP	Cut Tape (CT) & Digi-Reel®	2 µA	11.5ns	0.5V ~ 1.4V	1.2V ~ 2.1V	Active	5,300 Pcs

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility)

MC74ACT14DTR2G and SN74ACT14PWR are the preferred substitutes for 74ACT14MTC. Both maintain identical package geometry (14-TSSOP), supply voltage range, output current specifications, and operating temperature. MC74ACT14DTR2G offers the highest inventory availability (50,400 units). SN74ACT14PWR is actively produced by Texas Instruments with 5,300 units available.

Secondary Substitute (Package Variation)

SN74ACT14DBR uses 14-SSOP packaging instead of 14-TSSOP. While functionally equivalent, the physical package dimensions differ (0.209" vs 0.173" width). This substitute requires PCB layout verification to confirm footprint compatibility before implementation.

Discontinued Part

SN74ACT14PW is discontinued at DiGi Electronics and should not be selected for new designs requiring long-term availability assurance.

Compliance Status

All active substitutes maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing processes and long-term storage requirements.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT14DTR2G replace 74ACT14MTC directly on the PCB?

A: Yes. Both parts use identical 14-TSSOP packaging with matching pin configurations, supply voltage (4.5V ~ 5.5V), and output current (24mA). The higher quiescent current (4 µA vs 2 µA) and slightly longer propagation delay (11.5ns vs 10ns) remain within typical system tolerances for inverter applications.

Q: What is the difference between 14-TSSOP and 14-SSOP packages?

A: Both are 14-pin surface mount packages with identical pin count and function. The 14-SSOP package is wider (0.209" vs 0.173"), requiring different PCB footprints. Verify footprint compatibility before selecting SN74ACT14DBR as a substitute.

Q: Are Texas Instruments and onsemi parts interchangeable?

A: Yes, within the 74ACT14 series. Both manufacturers produce functionally equivalent inverter ICs meeting the same electrical specifications and operating conditions. Input logic level thresholds vary slightly between manufacturers but remain compatible with standard TTL/CMOS logic levels.

Q: Which substitute has the best availability?

A: MC74ACT14DTR2G offers the highest inventory (50,400 units) and is actively produced by onsemi in Tape & Reel format, suitable for automated assembly processes.

Q: Can I use SN74ACT14PW for new designs?

A: No. SN74ACT14PW is discontinued at DiGi Electronics and should not be selected for designs requiring sustained production or long-term component availability.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message