DM74ALS05AMX Equivalent & Substitute Parts

Part Overview

The DM74ALS05AMX is a 6-channel inverter logic IC with open collector outputs, manufactured by onsemi in a 14-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74ALS series inverter logic family provides standardized functionality across multiple manufacturers, enabling direct substitution based on electrical and mechanical parameter compatibility.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Features	Open Collector
Voltage - Supply	4.5V ~ 5.5V
Current - Output High, Low	-, 8mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	54ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Base Product Number	74ALS05
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS05AMX are grouped into two categories based on electrical and mechanical parameter alignment:

Direct Substitutes (Identical Electrical Parameters): Parts that maintain all key electrical specifications including 8mA output current, 54ns propagation delay, and identical logic thresholds. These parts differ only in manufacturer, packaging format, or product status but are electrically interchangeable.

Similar Substitutes (Modified Electrical Parameters): Parts based on the 74ALS1005 variant that maintain the same logic function, pin count, and package footprint but feature enhanced electrical performance (24mA output current, 30ns propagation delay). These parts are functionally compatible but operate at different performance levels.

Critical Parameters for Substitution:

Logic Type: Inverter (6 channels, 1 input per channel)
Package: 14-SOIC surface mount
Supply Voltage: 4.5V ~ 5.5V
Open Collector output configuration
Operating Temperature: 0°C ~ 70°C

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Current (mA)	Propagation Delay (ns)	Package Type	RoHS Status
DM74ALS05AMX	onsemi	Obsolete	8	54	14-SOIC (0.154")	REACH Unaffected
SN74ALS05AD	Texas Instruments	Last Time Buy	8	54	14-SOIC (0.154")	ROHS3 Compliant
SN74ALS05ADR	Texas Instruments	Active	8	54	14-SOIC (0.154")	ROHS3 Compliant
SN74ALS05ANSR	Texas Instruments	Active	8	54	14-SO (0.209")	ROHS3 Compliant
SN74ALS1005D	Texas Instruments	Last Time Buy	24	30	14-SOIC (0.154")	ROHS3 Compliant
SN74ALS1005DR	Texas Instruments	Active	24	30	14-SOIC (0.154")	ROHS3 Compliant
SN74ALS1005NSR	Texas Instruments	Active	24	30	14-SO (0.209")	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Performance): SN74ALS05ADR is the preferred direct substitute. This part is manufactured by Texas Instruments, maintains active product status, and is ROHS3 compliant. It provides identical electrical performance to the DM74ALS05AMX with the same 8mA output current and 54ns propagation delay. The Cut Tape & Digi-Reel packaging format supports both prototype and production volume requirements.

For Enhanced Performance Applications: The SN74ALS1005DR variant offers improved electrical characteristics with 24mA output current and 30ns propagation delay while maintaining the same 14-SOIC package footprint and pin configuration. This part is suitable for applications requiring faster switching or higher output drive capability. SN74ALS1005DR is active and ROHS3 compliant.

For Tape & Reel Packaging: SN74ALS05ANSR (direct equivalent) or SN74ALS1005NSR (enhanced performance) are available in Tape & Reel format. Note that these parts use a wider 14-SO package (0.209" width) compared to the standard 14-SOIC (0.154" width). PCB layout verification is required before selection.

Compliance Considerations: All Texas Instruments substitutes are ROHS3 compliant and REACH unaffected, meeting modern environmental and regulatory requirements. The onsemi DM74ALS05AMX is REACH unaffected but predates RoHS3 certification due to its obsolete status.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS05ADR be used as a direct replacement for DM74ALS05AMX? A: Yes. Both parts share identical electrical specifications: 6-channel inverter configuration, 8mA output current, 54ns propagation delay, and 14-SOIC package. The only differences are manufacturer and product status.

Q: What is the difference between SN74ALS05 and SN74ALS1005 variants? A: The SN74ALS1005 variant provides enhanced performance with 24mA output current (versus 8mA) and 30ns propagation delay (versus 54ns). Both maintain the same logic function and package footprint. Selection depends on application requirements for output drive capability and switching speed.

Q: Are the 14-SOIC and 14-SO packages interchangeable? A: Both are 14-pin surface mount packages with identical pin configurations, but they differ in body width: 14-SOIC is 0.154" wide, while 14-SO is 0.209" wide. PCB footprints must match the selected package. Parts with ANSR and NSR suffixes use the wider 14-SO package.

Q: Which substitute part has the best availability? A: SN74ALS05ANSR has the highest inventory (5,300 pcs) among direct equivalents. SN74ALS05ADR (2,200 pcs) and SN74ALS1005DR (2,100 pcs) also provide adequate stock for production requirements.

Q: Is RoHS3 compliance required for my application? A: All Texas Instruments substitutes are ROHS3 compliant. If RoHS3 compliance is mandatory, select from the Texas Instruments family. The original onsemi DM74ALS05AMX does not carry RoHS3 certification.

Q: Can I use SN74ALS1005 in a design originally specified for SN74ALS05? A: Functionally yes, but electrical performance differs. The SN74ALS1005 provides faster switching (30ns vs 54ns) and higher output current (24mA vs 8mA). Verify that your circuit design can accommodate these enhanced specifications, particularly if timing-critical or current-limited applications are involved.

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