SN74HC08DRG4 Equivalent & Substitute Parts

Part Overview

The SN74HC08DRG4 is a 4-channel AND gate logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The device operates across a 2V to 6V supply range with a maximum propagation delay of 17ns at 6V with 50pF load, suitable for general-purpose logic applications requiring AND gate functionality.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.5V ~ 1.8V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	17ns
Operating Temperature	-40°C ~ 85°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SN74HC08DRG4 is determined by the following critical parameters: logic type (AND gate), circuit count (4 channels), input count (2 inputs per channel), supply voltage range (2V ~ 6V), package type (14-SOIC), and surface mount mounting type. All substitute parts listed maintain these core functional and physical specifications.

Substitute parts are grouped into three categories based on manufacturer and product status:

Parametric Equivalents (Texas Instruments): SN74HC08DR and SN74HC08DT maintain identical electrical specifications and 14-SOIC packaging. SN74HC08DR is active and available in Cut Tape & Digi-Reel packaging. SN74HC08DT is discontinued at DiGi Electronics but available in Tape & Reel packaging.

Direct Manufacturer Alternatives (onsemi): MC74HC08ADR2G and MC74HC08ADG provide enhanced performance with 1 µA quiescent current (versus 2 µA) and faster propagation delay (13ns versus 17ns). Operating temperature range extends to -55°C ~ 125°C. Both are active products.

Manufacturer Recommended Alternatives (Nexperia, Diodes, Fairchild): 74HC08D,653, 74HC08D-Q100,118, 74HC08S14-13, MM74HC08M, and MM74HC08MX maintain core specifications with minor variations in propagation delay (13ns to 20ns) and quiescent current (1 µA to 20 µA). All are active products except where noted.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Logic Type	Circuits	Inputs	Supply Voltage	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Package	Product Status
SN74HC08DRG4	Texas Instruments	AND Gate	4	2	2V ~ 6V	2 µA	17ns	-40°C ~ 85°C	14-SOIC	Discontinued at DiGi Electronics
SN74HC08DR	Texas Instruments	AND Gate	4	2	2V ~ 6V	2 µA	17ns	-40°C ~ 85°C	14-SOIC	Active
SN74HC08DT	Texas Instruments	AND Gate	4	2	2V ~ 6V	2 µA	17ns	-40°C ~ 85°C	14-SOIC	Discontinued at DiGi Electronics
MC74HC08ADR2G	onsemi	AND Gate	4	2	2V ~ 6V	1 µA	13ns	-55°C ~ 125°C	14-SOIC	Active
MC74HC08ADG	onsemi	AND Gate	4	2	2V ~ 6V	1 µA	13ns	-55°C ~ 125°C	14-SOIC	Active
74HC08D,653	Nexperia USA Inc.	AND Gate	4	2	2V ~ 6V	2 µA	15ns	-40°C ~ 125°C	14-SOIC	Active
74HC08D-Q100,118	Nexperia USA Inc.	AND Gate	4	2	2V ~ 6V	2 µA	15ns	-40°C ~ 125°C	14-SOIC	Active
74HC08S14-13	Diodes Incorporated	AND Gate	4	2	2V ~ 6V	20 µA	15ns	-40°C ~ 125°C	14-SOIC	Active
MM74HC08M	Fairchild Semiconductor	AND Gate	4	2	2V ~ 6V	2 µA	20ns	-40°C ~ 85°C	14-SOIC	Active
MM74HC08MX	Fairchild Semiconductor	AND Gate	4	2	2V ~ 6V	2 µA	20ns	-40°C ~ 85°C	14-SOIC	Active

Engineering Selection Recommendations

For Direct Replacement: SN74HC08DR is the primary substitute, offering identical electrical and physical specifications with active product status and Cut Tape & Digi-Reel packaging availability.

For Enhanced Performance: MC74HC08ADR2G and MC74HC08ADG from onsemi provide superior performance characteristics with reduced quiescent current (1 µA) and faster propagation delay (13ns). Extended operating temperature range (-55°C ~ 125°C) supports broader application environments. Both are active products with established supply chains.

For Extended Temperature Range: 74HC08D,653 and 74HC08D-Q100,118 from Nexperia extend the upper operating temperature to 125°C while maintaining 2 µA quiescent current. The 74HC08D-Q100,118 variant includes AEC-Q100 automotive qualification for applications requiring automotive-grade components.

For Cost-Optimized Selection: MM74HC08M and MM74HC08MX from Fairchild Semiconductor maintain baseline specifications with 20ns propagation delay. These are suitable for applications where timing margins accommodate the slower response.

For High Quiescent Current Tolerance: 74HC08S14-13 from Diodes Incorporated operates with 20 µA quiescent current, acceptable only in applications where power consumption is not a constraint.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and 14-SOIC packaging compatibility with the original SN74HC08DRG4.

Frequently Asked Questions (FAQ)

Q: Can I use SN74HC08DR as a direct replacement for SN74HC08DRG4?

A: Yes. SN74HC08DR is a parametric equivalent with identical electrical specifications, supply voltage range, propagation delay, and 14-SOIC package. The primary difference is packaging format (Cut Tape & Digi-Reel versus Cut Tape & Digi-Reel) and active product status.

Q: What is the difference between MC74HC08ADR2G and the original SN74HC08DRG4?

A: MC74HC08ADR2G provides improved performance with lower quiescent current (1 µA versus 2 µA) and faster propagation delay (13ns versus 17ns). Operating temperature range extends to -55°C ~ 125°C. All functional parameters and 14-SOIC packaging remain compatible.

Q: Are the onsemi parts (MC74HC08ADR2G, MC74HC08ADG) pin-compatible with the original?

A: Yes. Both onsemi parts maintain 14-SOIC packaging and identical pin configuration. Electrical specifications are compatible with the original design.

Q: Which substitute should I use for automotive applications?

A: 74HC08D-Q100,118 from Nexperia includes AEC-Q100 automotive qualification. This part maintains core specifications with 15ns propagation delay and extended temperature range to 125°C.

Q: What is the significance of the propagation delay differences among substitutes?

A: Propagation delay ranges from 13ns (onsemi parts) to 20ns (Fairchild parts). Applications with tight timing requirements should use faster alternatives. Applications with relaxed timing margins can accommodate slower parts. All values remain within acceptable logic gate performance for standard digital circuits.

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

A: All listed substitutes maintain identical logic functionality and 14-SOIC packaging. Mixing is permissible provided the application timing requirements accommodate the slowest part used (20ns maximum propagation delay).

Q: What packaging formats are available among the substitutes?

A: Substitutes are available in Cut Tape (CT) & Digi-Reel, Tape & Reel (TR), and Tube packaging. SN74HC08DR and MC74HC08ADR2G offer Cut Tape & Digi-Reel. MC74HC08ADG is available in Tube. Nexperia and Diodes parts are available in Tape & Reel format.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original SN74HC08DRG4 environmental specifications.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message