DM74ALS30AM NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74ALS30AM is a NAND Gate IC featuring 1 channel with 8 inputs in a 14-SOIC surface mount package, manufactured by onsemi. This logic component operates within the 74ALS series and is classified as obsolete. Due to its obsolete status and limited availability from the original manufacturer, identifying equivalent substitute parts is essential for design continuity and procurement flexibility in applications requiring 8-input NAND gate functionality.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	1
Number of Inputs	8
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	12ns @ 5V, 50pF
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

Substitute parts for the DM74ALS30AM are qualified based on strict electrical and mechanical parameter matching within the 74ALS logic family. The substitution criteria are:

Logic Type: NAND Gate with identical 1 channel, 8-input configuration
Voltage Supply Range: 4.5V ~ 5.5V
Output Current Characteristics: 400µA (High), 8mA (Low)
Input Logic Levels: 0.8V (Low), 2V (High)
Propagation Delay: 12ns @ 5V, 50pF maximum
Operating Temperature Range: 0°C ~ 70°C
Package: 14-SOIC surface mount form factor
Moisture Sensitivity: MSL 1 (Unlimited)

All identified substitutes maintain identical functional and electrical specifications, differing only in manufacturer, product status, and packaging format (Tape & Reel or Tube).

Parameter Comparison

Parameter	DM74ALS30AM (onsemi)	SN74ALS30ADR (TI)	SN74ALS30AD (TI)
Manufacturer	onsemi	Texas Instruments	Texas Instruments
Logic Type	NAND Gate	NAND Gate	NAND Gate
Number of Circuits	1	1	1
Number of Inputs	8	8	8
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	0.8V	0.8V	0.8V
Input Logic Level - High	2V	2V	2V
Max Propagation Delay @ V, Max CL	12ns @ 5V, 50pF	12ns @ 5V, 50pF	12ns @ 5V, 50pF
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	Active	Last Time Buy
Packaging Format	Standard	Tape & Reel (TR)	Tube
RoHS Status	REACH Unaffected	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

SN74ALS30ADR (Texas Instruments, Tape & Reel) is the primary substitute for the DM74ALS30AM. This part carries Active product status, ensuring long-term availability and supply chain stability. It is ROHS3 compliant and maintains all electrical and mechanical specifications identical to the original component. The Tape & Reel packaging format is suitable for high-volume automated assembly operations.

SN74ALS30AD (Texas Instruments, Tube) serves as a secondary substitute option. This part is designated Last Time Buy status, indicating limited future availability. It is ROHS3 compliant and functionally equivalent to the DM74ALS30AM. The Tube packaging format is appropriate for lower-volume applications or manual assembly processes.

Both Texas Instruments substitutes provide superior long-term viability compared to the obsolete onsemi original, with the SN74ALS30ADR offering the most favorable availability outlook for ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS30ADR and SN74ALS30AD be used interchangeably with DM74ALS30AM?

A: Yes. All three parts are electrically and mechanically equivalent within the 74ALS logic family. They share identical logic type (NAND Gate, 1 channel, 8 inputs), voltage supply range (4.5V ~ 5.5V), output current characteristics (400µA, 8mA), input logic levels (0.8V, 2V), propagation delay (12ns @ 5V, 50pF), operating temperature range (0°C ~ 70°C), and 14-SOIC package form factor.

Q: What is the difference between SN74ALS30ADR and SN74ALS30AD?

A: The primary difference is packaging format. SN74ALS30ADR is supplied in Tape & Reel format, optimized for automated pick-and-place assembly. SN74ALS30AD is supplied in Tube format, suitable for manual handling and lower-volume applications. Electrical specifications are identical.

Q: Why is the DM74ALS30AM listed as obsolete?

A: The DM74ALS30AM is an onsemi product classified as obsolete, indicating the manufacturer has discontinued production. Texas Instruments continues to manufacture functionally equivalent parts under the 74ALS30 base product number, providing continuity for applications requiring 8-input NAND gate functionality.

Q: Are there compliance differences between the substitutes?

A: The Texas Instruments substitutes (SN74ALS30ADR and SN74ALS30AD) are ROHS3 compliant. All three parts maintain REACH Unaffected status and MSL 1 (Unlimited) moisture sensitivity rating. Both substitutes are suitable for applications with RoHS compliance requirements.

Q: Which substitute should be selected for new designs?

A: SN74ALS30ADR is recommended for new designs due to its Active product status, ensuring sustained availability and supply chain support. This part is optimized for modern automated assembly processes via Tape & Reel packaging.

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