DM74ALS08M Equivalent & Substitute Parts

Part Overview

The DM74ALS08M is a 4-channel 2-input AND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The 74ALS logic family provides standard AND gate functionality with specified electrical characteristics suitable for digital logic circuit design.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	4.5V ~ 5.5V
Current - Output High, Low	400µA, 8mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	14ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS08M are qualified based on matching the following critical parameters:

Logic Type: AND Gate
Number of Circuits: 4
Number of Inputs: 2
Voltage - Supply: 4.5V ~ 5.5V
Current - Output High, Low: 400µA, 8mA
Input Logic Level - Low: 0.8V
Input Logic Level - High: 2V
Max Propagation Delay @ V, Max CL: 14ns @ 5V, 50pF
Operating Temperature: 0°C ~ 70°C
Mounting Type: Surface Mount
Base Product Number: 74ALS08

Substitutes are categorized by packaging configuration and product status. Direct manufacturer equivalents maintain identical electrical specifications and primary package dimensions. Similar equivalents may vary in secondary packaging format (tape & reel vs. cut tape). Parametric equivalents match all electrical characteristics but may differ in product lifecycle status.

Parameter Comparison

Parameter	DM74ALS08M (onsemi)	SN74ALS08DR (TI)	SN74ALS08NSR (TI)	SN74ALS08D (TI)
Manufacturer	onsemi	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Last Time Buy
Logic Type	AND Gate	AND Gate	AND Gate	AND Gate
Number of Circuits	4	4	4	4
Number of Inputs	2	2	2	2
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Output High, Low	400µA, 8mA	400µA, 8mA	400µA, 8mA	400µA, 8mA
Input Logic Level - Low	0.8V	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	2V	2V
Max Propagation Delay @ V, Max CL	14ns @ 5V, 50pF	14ns @ 5V, 50pF	14ns @ 5V, 50pF	14ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Supplier Device Package	14-SOIC	14-SOIC	14-SO	14-SOIC
Package / Case	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.209", 5.30mm Width)	14-SOIC (0.154", 3.90mm Width)
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

SN74ALS08DR (Texas Instruments) is the primary direct substitute. This part maintains active product status with ROHS3 compliance and identical electrical specifications and primary package dimensions (14-SOIC, 0.154" width). Cut tape and digi-reel packaging options support standard manufacturing workflows.

SN74ALS08NSR (Texas Instruments) provides parametric equivalence with identical electrical performance. The package width specification (0.209", 5.30mm) differs from the primary package dimension, requiring PCB layout verification before implementation. Tape & reel packaging is available. Active product status ensures supply continuity.

SN74ALS08D (Texas Instruments) matches all electrical parameters with identical primary package dimensions. Last Time Buy status indicates limited future availability. Tube packaging format may require process adaptation. ROHS3 compliance is confirmed.

All three Texas Instruments substitutes provide ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for current production environments.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS08NSR be used as a direct replacement for DM74ALS08M?

A: SN74ALS08NSR matches all electrical specifications and operating parameters. The package width differs (0.209" vs. 0.154"), requiring verification that PCB pad spacing accommodates the wider package body. Electrical functionality is identical.

Q: What is the difference between the three Texas Instruments substitutes?

A: All three parts (SN74ALS08DR, SN74ALS08NSR, SN74ALS08D) provide identical electrical performance. Differences exist in product status, packaging format, and package body width. SN74ALS08DR and SN74ALS08D maintain the 0.154" package width. SN74ALS08NSR uses 0.209" width. SN74ALS08DR is active; SN74ALS08D is Last Time Buy.

Q: Are the Texas Instruments substitutes compatible with the onsemi DM74ALS08M in terms of pin configuration?

A: All parts share the 74ALS08 base product number with identical logic type (4-channel 2-input AND gate), circuit count, and pin configuration. Pin-to-pin compatibility is maintained across all substitutes.

Q: What compliance certifications apply to the substitute parts?

A: All Texas Instruments substitutes are ROHS3 compliant and REACH unaffected. The original onsemi part does not specify RoHS status but is REACH unaffected.

Q: Which substitute should be selected for new production designs?

A: SN74ALS08DR is recommended for new production due to active product status, standard cut tape packaging, and confirmed ROHS3 compliance. This part ensures long-term supply availability and regulatory compliance.

Q: Is the DM74ALS08M still available?

A: The DM74ALS08M is classified as obsolete. Texas Instruments substitutes provide active or Last Time Buy status, ensuring continued availability for replacement and new applications.

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