DM74AS10M NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74AS10M is a 3-channel, 3-input NAND gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system support and new design implementations. The DM74AS10M operates within the 74AS logic family standard, which defines specific electrical and mechanical parameters that govern substitution eligibility.

Key Parameters

Parameter	Value
Logic Type	NAND Gate
Number of Circuits	3
Number of Inputs	3
Voltage - Supply	4.5V ~ 5.5V
Current - Output High, Low	2mA, 20mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ V, Max CL	4.5ns @ 5V, 50pF
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Series	74AS
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DM74AS10M is determined by strict equivalence across the following parameters: logic type (NAND gate), circuit count (3 channels), input count (3 inputs per channel), supply voltage range (4.5V ~ 5.5V), output current specifications (2mA high, 20mA low), input logic thresholds (0.8V low, 2V high), propagation delay (4.5ns @ 5V, 50pF), operating temperature range (0°C ~ 70°C), and mounting type (surface mount). Package variations within the 14-SOIC family are permitted when mechanical dimensions remain compatible with the specified footprint tolerance. All substitute parts must belong to the 74AS logic series to maintain timing and electrical characteristics.

Parameter Comparison

Parameter	DM74AS10M (onsemi)	SN74AS10DR (TI)	SN74AS10NSR (TI)	SN74AS10D (TI)
Logic Type	NAND Gate	NAND Gate	NAND Gate	NAND Gate
Number of Circuits	3	3	3	3
Number of Inputs	3	3	3	3
Voltage - Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Current - Output High, Low	2mA, 20mA	2mA, 20mA	2mA, 20mA	2mA, 20mA
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	4.5ns @ 5V, 50pF	4.5ns @ 5V, 50pF	4.5ns @ 5V, 50pF	4.5ns @ 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
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)
Series	74AS	74AS	74AS	74AS
Product Status	Obsolete	Active	Active	Last Time Buy
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

SN74AS10DR (Texas Instruments) is the primary direct substitute for DM74AS10M. This part maintains identical electrical parameters, package dimensions (14-SOIC 0.154" width), and series classification. SN74AS10DR carries active product status and ROHS3 compliance, providing long-term availability and regulatory alignment.

SN74AS10D (Texas Instruments) is a parametric equivalent with identical electrical specifications and package footprint. This part is designated Last Time Buy, indicating limited future availability. Selection of SN74AS10D should be reserved for applications where existing inventory or specific supply chain requirements justify its use.

SN74AS10NSR (Texas Instruments) is a similar substitute with all electrical parameters matching the DM74AS10M. The package case differs (14-SOIC 0.209" width versus 0.154" width), requiring PCB footprint verification before implementation. This part maintains active product status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can SN74AS10NSR be used as a direct replacement for DM74AS10M?

A: SN74AS10NSR is electrically equivalent but has a different package width (0.209" versus 0.154"). PCB footprint compatibility must be confirmed. If the design accommodates the wider 14-SOIC package, SN74AS10NSR is functionally suitable.

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

A: SN74AS10DR and SN74AS10D are identical in electrical performance and package dimensions (0.154" width). SN74AS10DR is packaged in Tape & Reel format with active status; SN74AS10D is in Tube format with Last Time Buy status. SN74AS10NSR has a wider package (0.209" width) but identical electrical characteristics.

Q: Why is DM74AS10M classified as obsolete?

A: Obsolete status indicates the manufacturer (onsemi) has discontinued production. Active alternatives from Texas Instruments ensure continued component availability and supply chain continuity.

Q: Are all substitutes ROHS3 compliant?

A: SN74AS10DR, SN74AS10NSR, and SN74AS10D are all ROHS3 compliant. The original DM74AS10M RoHS status is not specified in the available data.

Q: What packaging format should be selected for production?

A: SN74AS10DR (Tape & Reel) is standard for high-volume production. SN74AS10D (Tube) is suitable for lower volumes or prototype builds. Packaging selection depends on manufacturing process requirements and order quantities.

Q: Do all parts share the same pin configuration?

A: All parts are 3-channel, 3-input NAND gates in 14-pin packages. Pin configuration is consistent across all substitutes within the 74AS series.

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