DM74ALS14M Equivalent & Substitute Parts

Part Overview

The DM74ALS14M is a 6-channel inverter IC with Schmitt trigger inputs 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 Schmitt trigger feature provides noise immunity for digital signal inversion across industrial and commercial logic applications.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	4.5V ~ 5.5V
Current - Output High, Low	400µA, 8mA
Input Logic Level - Low	0.75V ~ 0.85V
Input Logic Level - High	1.85V ~ 2V
Max Propagation Delay @ 5V, 50pF	12ns
Operating Temperature	0°C ~ 70°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the DM74ALS14M is determined by the following critical parameters:

Logic type (Inverter with 6 channels, 1 input per channel)
Supply voltage range (4.5V ~ 5.5V)
Output current specifications (400µA, 8mA)
Input logic level thresholds
Propagation delay performance
Package compatibility (14-SOIC surface mount)
Operating temperature range (0°C ~ 70°C)

The substitute parts SN74ALS04BD and SN74ALS04BDR meet these electrical and mechanical requirements. Both are manufactured by Texas Instruments and share the same 74ALS logic family base product designation, ensuring functional equivalence within the specified parameter tolerances.

Parameter Comparison

Parameter	DM74ALS14M (Main)	SN74ALS04BD	SN74ALS04BDR
Manufacturer	onsemi	Texas Instruments	Texas Instruments
Logic Type	Inverter	Inverter	Inverter
Number of Circuits	6	6	6
Number of Inputs	1	1	1
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Output High, Low	400µA, 8mA	400µA, 8mA	400µA, 8mA
Input Logic Level - Low	0.75V ~ 0.85V	0.8V	0.8V
Input Logic Level - High	1.85V ~ 2V	2V	2V
Max Propagation Delay @ 5V, 50pF	12ns	11ns	11ns
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Package / Case	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Last Time Buy	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

SN74ALS04BDR is the primary substitute for the obsolete DM74ALS14M. This part carries Active product status from Texas Instruments, ensuring long-term availability and supply chain continuity. It meets ROHS3 compliance requirements and maintains all electrical parameters within specification.

SN74ALS04BD serves as a secondary substitute option. This part is designated Last Time Buy, indicating limited future availability. Both Texas Instruments alternatives provide superior propagation delay performance (11ns versus 12ns) and maintain full electrical and mechanical compatibility with the original DM74ALS14M specification.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS04BD and SN74ALS04BDR be used interchangeably with DM74ALS14M?

A: Yes. Both parts meet the electrical parameter requirements and share identical 14-SOIC packaging. The primary difference is product status: SN74ALS04BDR is Active, while SN74ALS04BD is Last Time Buy.

Q: What is the difference between SN74ALS04BD and SN74ALS04BDR?

A: Both parts are electrically identical. SN74ALS04BD is supplied in Tube packaging, while SN74ALS04BDR is supplied in Cut Tape (CT) packaging. SN74ALS04BDR has Active product status, making it the recommended choice for new designs.

Q: Are there packaging considerations when substituting these parts?

A: All three parts use 14-SOIC surface mount packaging with identical dimensions (0.154", 3.90mm Width). No PCB layout modifications are required for substitution.

Q: Do the substitute parts require different handling or storage?

A: All parts share Moisture Sensitivity Level 1 (Unlimited), indicating identical handling and storage requirements.

Q: What compliance certifications apply to these substitute parts?

A: Both Texas Instruments substitutes are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements for electronic components.

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