DM74AS1000AN NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74AS1000AN is a 4-channel 2-input NAND gate logic IC manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74AS series represents a standard logic family with established electrical characteristics suitable for digital circuit applications requiring NAND gate functionality.

Substiute Parts

DM74AS1000AN

onsemiIn Stock: 907DM74AS1000AN Datasheet

Current PartRFQ

SN74AS1000AN

Texas InstrumentsIn Stock: 3275SN74AS1000AN Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74AS1000AN is determined by strict equivalence across the following parameters:

• Logic family and function: 74AS NAND gate with 4 channels and 2 inputs per channel
• Electrical specifications: Supply voltage range 4.5V ~ 5.5V, output current 48mA, propagation delay 4ns @ 5V with 50pF load
• Input logic thresholds: Low 0.8V, High 2V
• Operating temperature range: 0°C ~ 70°C
• Physical package: 14-DIP through-hole configuration with 0.300" (7.62mm) pitch

The SN74AS1000AN from Texas Instruments meets all these criteria and serves as a direct parametric equivalent. Both parts share the same base product number (74AS1000) and maintain identical electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The SN74AS1000AN from Texas Instruments is the appropriate substitute for the obsolete DM74AS1000AN. Both components are REACH compliant and classified under the same ECCN and HTSUS codes, ensuring regulatory consistency. The Texas Instruments variant maintains active product status with established supply availability, whereas the onsemi part is obsolete. The SN74AS1000AN carries RoHS3 compliance, providing additional environmental qualification for modern manufacturing standards. All electrical and mechanical parameters are identical, enabling direct pin-compatible replacement in existing circuit designs without modification to PCB layouts or schematic connections.

Frequently Asked Questions (FAQ)

Q: Can the SN74AS1000AN replace the DM74AS1000AN in existing designs?

A: Yes. Both parts are pin-compatible 14-DIP packages with identical electrical specifications, including supply voltage, output current, propagation delay, and input logic thresholds. No circuit modifications are required.

Q: What is the difference between the 14-MDIP and 14-PDIP package designations?

A: Both designations refer to 14-pin dual in-line packages with 0.300" (7.62mm) pitch suitable for through-hole mounting. The functional and electrical performance is equivalent.

Q: Why is the DM74AS1000AN listed as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The SN74AS1000AN maintains active status with ongoing availability from Texas Instruments.

Q: Are there compliance differences between the two parts?

A: Both parts are REACH compliant and classified as EAR99. The SN74AS1000AN includes RoHS3 compliance certification, which the obsolete DM74AS1000AN does not specify.

Q: Can these parts be used interchangeably in new production designs?

A: Yes. The SN74AS1000AN is the recommended choice for new designs due to its active product status and modern compliance certifications.