74ACTQ00MTC NAND Gate IC Equivalent & Substitute Parts

Part Overview

The 74ACTQ00MTC is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in a 14-TSSOP surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74ACT00 logic family provides functionally identical NAND gate configurations across multiple manufacturers and packaging options, enabling direct substitution based on electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	4.5V ~ 5.5V
Output Current (High/Low)	24mA / 24mA
Input Logic Level Low	0.8V
Input Logic Level High	2V
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package Type	14-TSSOP

Substitute Part Grouping Explanation

Substitution of the 74ACTQ00MTC is determined by the following criteria:

Core Functional Requirements:

Logic type: NAND Gate
Circuit count: 4 channels
Input count: 2 per channel
Supply voltage range: 4.5V ~ 5.5V
Output current capability: 24mA minimum (both high and low)
Input logic thresholds: Low ≤ 0.8V, High ≥ 2V

Mechanical Compatibility:

Mounting type: Surface Mount
Package options: 14-TSSOP or 14-SSOP (both 14-pin configurations)
Pin pitch and footprint compatibility within TSSOP/SSOP family

Acceptable Variations:

Quiescent current: up to 4µA (original: 2µA)
Propagation delay: up to 9ns @ 5V, 50pF (original: 7.5ns)
Operating temperature range: may extend beyond -40°C ~ 85°C
Product status: Active or Discontinued at distributor (Obsolete status requires substitution)
Packaging format: Tape & Reel or Tube acceptable

Parameter Comparison

Parameter	74ACTQ00MTC (Main)	MC74ACT00DTR2G	SN74ACT00DBR	SN74ACT00PW	SN74ACT00PWR
Manufacturer	onsemi	onsemi	Texas Instruments	Texas Instruments	Texas Instruments
Logic Type	NAND Gate	NAND Gate	NAND Gate	NAND Gate	NAND Gate
Circuits / Inputs	4 / 2	4 / 2	4 / 2	4 / 2	4 / 2
Voltage Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Quiescent Current (Max)	2µA	4µA	2µA	2µA	2µA
Output Current (High/Low)	24mA / 24mA	24mA / 24mA	24mA / 24mA	24mA / 24mA	24mA / 24mA
Input Logic Levels	0.8V / 2V	0.8V / 2V	0.8V / 2V	0.8V / 2V	0.8V / 2V
Max Propagation Delay	7.5ns @ 5V, 50pF	9ns @ 5V, 50pF	9ns @ 5V, 50pF	9ns @ 5V, 50pF	9ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	14-TSSOP	14-TSSOP	14-SSOP	14-TSSOP	14-TSSOP
Packaging Format	—	Tape & Reel	Tape & Reel	Tube	Tape & Reel
Product Status	Obsolete	Active	Active	Discontinued at DiGi Electronics	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

MC74ACT00DTR2G and SN74ACT00PWR are the preferred substitutes. Both parts are in active production status with ROHS3 compliance certification. MC74ACT00DTR2G offers extended operating temperature range (-55°C ~ 125°C), beneficial for applications requiring broader thermal performance. SN74ACT00PWR maintains the original temperature specification (-40°C ~ 85°C) with Texas Instruments manufacturing support and Tape & Reel packaging for production environments.

Secondary Substitute (Package Consideration):

SN74ACT00DBR is functionally equivalent but uses 14-SSOP packaging (0.209" width) instead of 14-TSSOP (0.173" width). This substitute is suitable only if PCB footprint accommodates the wider SSOP package. Product status is active with ROHS3 compliance.

Discontinued Option (Limited Availability):

SN74ACT00PW is discontinued at DiGi Electronics and should be avoided for new production unless existing inventory is available. Tube packaging format limits suitability for high-volume manufacturing.

Frequently Asked Questions (FAQ)

Q: Can I substitute 74ACTQ00MTC with any 74ACT00 variant?

A: Substitution is valid only for parts meeting all specified electrical parameters: 4-channel 2-input NAND gate configuration, 4.5V ~ 5.5V supply voltage, 24mA output current capability, and matching input logic thresholds. Package type (14-TSSOP or 14-SSOP) must be compatible with your PCB design.

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

A: Both are 14-pin surface mount packages with identical pin assignments. The primary difference is package width: 14-TSSOP measures 0.173" (4.40mm) while 14-SSOP measures 0.209" (5.30mm). PCB footprints are not interchangeable; verify your design accommodates the selected package type.

Q: Does the extended temperature range of MC74ACT00DTR2G (-55°C ~ 125°C) affect compatibility?

A: Extended temperature range is a superset of the original specification and does not affect electrical compatibility. If your application operates within -40°C ~ 85°C, MC74ACT00DTR2G functions identically to the original part. Extended range provides additional design margin for demanding thermal environments.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. MC74ACT00DTR2G, SN74ACT00DBR, SN74ACT00PW, and SN74ACT00PWR all carry ROHS3 Compliant certification. The original 74ACTQ00MTC does not specify RoHS status.

Q: What packaging formats are available for production?

A: MC74ACT00DTR2G and SN74ACT00PWR are supplied in Tape & Reel format, standard for automated assembly. SN74ACT00PW uses Tube packaging. Select Tape & Reel format for high-volume manufacturing environments.

Q: Can I use SN74ACT00PW for new designs?

A: SN74ACT00PW is discontinued at DiGi Electronics and should not be selected for new designs. Use MC74ACT00DTR2G or SN74ACT00PWR instead, both of which are in active production.

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