SN74ACT08PW AND Gate IC Equivalent & Substitute Parts

Part Overview

The SN74ACT08PW is a 4-channel 2-input AND gate logic IC manufactured by Texas Instruments in a 14-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The 74ACT08 logic family provides standard AND gate functionality suitable for digital logic circuits requiring 4.5V to 5.5V supply operation.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	9ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74ACT08PW is determined by the following critical parameters:

Logic Function: All substitutes must be 4-channel 2-input AND gates
Voltage Supply Range: 4.5V ~ 5.5V operation required
Package Type: 14-TSSOP surface mount package mandatory
Electrical Characteristics: Propagation delay, output current, and input logic levels must match or exceed specifications
Operating Temperature Range: -40°C ~ 85°C minimum
Compliance: ROHS3 compliance and MSL Level 1 required

The substitute parts are grouped as follows:

Direct Manufacturer Substitutes (Texas Instruments SN74ACT08PWR): Identical electrical specifications with packaging format variation (Tape & Reel vs. Tube).

Cross-Manufacturer Equivalents (onsemi MC74ACT08DTR2G, 74ACT08MTCX, 74ACT08MTC): Functionally equivalent with identical logic performance. Quiescent current specification differs (4 µA vs. 2 µA maximum), remaining within acceptable parametric tolerance for the 74ACT logic family.

Parameter Comparison

Parameter	SN74ACT08PW	SN74ACT08PWR	MC74ACT08DTR2G	74ACT08MTCX	74ACT08MTC
Manufacturer	Texas Instruments	Texas Instruments	onsemi	onsemi	onsemi
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	4	4	4	4	4
Number of Inputs	2	2	2	2	2
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Quiescent (Max)	2 µA	2 µA	4 µA	4 µA	4 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.8V	0.8V	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	2V	2V	2V
Max Propagation Delay @ V, Max CL	9ns @ 5V, 50pF	9ns @ 5V, 50pF	9ns @ 5V, 50pF	9ns @ 5V, 50pF	9ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP	14-TSSOP
Packaging Format	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tube
Product Status	Discontinued at DiGi Electronics	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

SN74ACT08PWR (Texas Instruments): Recommended as the primary substitute. Maintains identical electrical specifications and manufacturer continuity. Available in active product status with Tape & Reel packaging. Suitable for high-volume production environments.

74ACT08MTCX (onsemi): Recommended as the secondary substitute. Manufacturer-recommended equivalent with highest inventory availability (23,609 pcs). Available in Cut Tape and Digi-Reel packaging formats. Active product status ensures long-term supply continuity.

MC74ACT08DTR2G (onsemi): Acceptable substitute with parametric equivalence. Quiescent current specification of 4 µA (versus 2 µA) remains within 74ACT logic family tolerances. Available in Tape & Reel format with active product status.

74ACT08MTC (onsemi): Acceptable substitute with parametric equivalence. Tube packaging format matches the original SN74ACT08PW. Active product status with adequate inventory (4,300 pcs).

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can I use onsemi 74ACT08 parts as direct replacements for the Texas Instruments SN74ACT08PW?

A: Yes. The onsemi 74ACT08MTCX, MC74ACT08DTR2G, and 74ACT08MTC are parametric equivalents meeting all critical electrical specifications. All parts share identical logic function, voltage supply range, propagation delay, and 14-TSSOP package configuration.

Q: What is the difference between the quiescent current specifications (2 µA vs. 4 µA)?

A: The SN74ACT08PWR maintains the 2 µA maximum quiescent current specification. The onsemi equivalents (MC74ACT08DTR2G, 74ACT08MTCX, 74ACT08MTC) specify 4 µA maximum. Both values are within acceptable operating parameters for the 74ACT logic family and do not affect functional compatibility or circuit performance.

Q: What packaging format should I select?

A: Packaging format depends on procurement and assembly requirements. Tube packaging (SN74ACT08PW, 74ACT08MTC) is suitable for manual assembly or small-volume applications. Tape & Reel (SN74ACT08PWR, MC74ACT08DTR2G) and Cut Tape with Digi-Reel (74ACT08MTCX) are optimized for automated pick-and-place assembly in production environments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 rating, meeting standard environmental and manufacturing requirements.

Q: Which substitute offers the best inventory availability?

A: The 74ACT08MTCX (onsemi) offers the highest inventory availability at 23,609 pcs. This part is designated as the manufacturer-recommended equivalent and is available in Cut Tape and Digi-Reel packaging formats.

Q: Can I mix different substitute parts in the same production run?

A: Yes. All substitute parts are parametrically equivalent and functionally interchangeable. Mixing parts from different manufacturers or packaging formats does not affect circuit performance, provided all parts meet the specified electrical and environmental requirements.

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