DM74ALS1034M Equivalent & Substitute Parts

Part Overview

The DM74ALS1034M is a non-inverting buffer logic IC manufactured by onsemi, featuring 6 elements with 1 bit per element and 3-state output capability. This component operates within the 4.5V to 5.5V supply voltage range and is housed in a 14-SOIC surface mount package. The part is currently classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	DM74ALS1034M
Manufacturer	onsemi
Logic Type	Buffer, Non-Inverting
Number of Elements	6
Number of Bits per Element	1
Output Type	3-State
Current - Output High, Low	15mA, 24mA
Voltage - Supply	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C (TA)
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Series	74ALS
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the DM74ALS1034M is determined by strict alignment of the following electrical and mechanical parameters:

Logic type and function: Buffer, Non-Inverting
Element and bit configuration: 6 elements, 1 bit per element
Output architecture: 3-State
Output current specifications: 15mA (high), 24mA (low)
Supply voltage range: 4.5V ~ 5.5V
Operating temperature range: 0°C ~ 70°C
Package type: 14-SOIC surface mount
Series classification: 74ALS

Substitute parts are categorized as follows:

Direct Manufacturer Substitute: SN74ALS1034DR (Texas Instruments) — identical electrical specifications and 14-SOIC package footprint with tape & reel packaging.

Similar Manufacturer Substitute: SN74ALS1034NSR (Texas Instruments) — matches all electrical parameters but uses a 14-SO package variant (0.209", 5.30mm width) requiring PCB layout verification.

Parametric Equivalent: SN74ALS1034D (Texas Instruments) — identical electrical and package specifications with tube packaging format.

Parameter Comparison

Parameter	DM74ALS1034M (onsemi)	SN74ALS1034DR (TI)	SN74ALS1034NSR (TI)	SN74ALS1034D (TI)
Logic Type	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting	Buffer, Non-Inverting
Number of Elements	6	6	6	6
Number of Bits per Element	1	1	1	1
Output Type	3-State	3-State	3-State	3-State
Current - Output High, Low	15mA, 24mA	15mA, 24mA	15mA, 24mA	15mA, 24mA
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C	0°C ~ 70°C
Package / Case	14-SOIC (0.154", 3.90mm)	14-SOIC (0.154", 3.90mm)	14-SO (0.209", 5.30mm)	14-SOIC (0.154", 3.90mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Series	74ALS	74ALS	74ALS	74ALS
Product Status	Obsolete	Active	Active	Last Time Buy
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

SN74ALS1034DR (Texas Instruments) is the primary substitute for the obsolete DM74ALS1034M. This part maintains identical electrical specifications and package footprint (14-SOIC, 0.154" width) with no PCB layout modifications required. The part is currently in active production status with ROHS3 compliance certification, ensuring long-term availability and regulatory alignment.

SN74ALS1034D (Texas Instruments) provides parametric equivalence with identical package dimensions and electrical performance. This part is designated as Last Time Buy, indicating limited future availability. Selection of this part should be considered only when SN74ALS1034DR is unavailable and immediate design implementation is required.

SN74ALS1034NSR (Texas Instruments) is functionally equivalent but uses a wider 14-SO package (0.209" width) compared to the standard 14-SOIC footprint. PCB layout verification is mandatory before implementation, as the increased package width may conflict with existing trace routing or component placement constraints.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS1034NSR be used as a direct drop-in replacement for DM74ALS1034M?

A: SN74ALS1034NSR is electrically equivalent but not a direct drop-in replacement. The 14-SO package is wider (0.209" vs. 0.154") than the original 14-SOIC package. PCB layout review is required to confirm compatibility with existing footprint spacing and trace routing.

Q: What is the difference between SN74ALS1034DR and SN74ALS1034D?

A: Both parts are electrically and mechanically identical with the same 14-SOIC package. The primary difference is packaging format: SN74ALS1034DR is supplied in tape & reel format suitable for automated assembly, while SN74ALS1034D is supplied in tube format. SN74ALS1034DR is in active production; SN74ALS1034D is designated Last Time Buy.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SN74ALS1034DR, SN74ALS1034NSR, and SN74ALS1034D are all ROHS3 compliant. The original DM74ALS1034M RoHS status was not specified in available documentation.

Q: What is the moisture sensitivity level for these parts?

A: All parts, including the original DM74ALS1034M and all Texas Instruments substitutes, have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Can I use these parts interchangeably in my design?

A: SN74ALS1034DR and SN74ALS1034D are fully interchangeable with identical package footprints. SN74ALS1034NSR requires PCB layout verification due to package width differences. All three maintain identical electrical performance within the specified operating parameters.

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