DM74AS1032AM Equivalent & Substitute Parts

Part Overview

The DM74AS1032AM is a 4-channel 2-input OR gate logic IC manufactured by onsemi in 14-SOIC surface mount packaging. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates within a 4.5V to 5.5V supply voltage range and is suitable for digital logic applications requiring OR gate functionality.

Substiute Parts

DM74AS1032AM

onsemiIn Stock: 872DM74AS1032AM Datasheet

Current PartRFQ

SN74AS32D

Texas InstrumentsIn Stock: 896SN74AS32D Datasheet

SimilarRFQ

SN74AS32DR

Texas InstrumentsIn Stock: 4811SN74AS32DR Datasheet

SimilarRFQ

SN74AS1032AD

Texas InstrumentsIn Stock: 918SN74AS1032AD Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74AS1032AM are classified into two categories based on electrical parameter alignment:

Parametric Equivalent: SN74AS1032AD matches all critical electrical specifications including output current (48mA high, 48mA low) and propagation delay (6.3ns @ 5V, 50pF). This part maintains identical functional performance.

Functional Equivalents: SN74AS32D and SN74AS32DR provide the same logic function (4-channel 2-input OR gate) with identical input/output logic levels and supply voltage range. These parts differ in output current specifications (2mA high, 20mA low) and propagation delay (5.8ns @ 5V, 50pF), representing a different internal design variant within the 74AS series.

All substitute candidates share the following critical parameters with the main part:

• 4 circuits, 2 inputs per circuit
• 4.5V ~ 5.5V supply voltage
• 0.8V input logic level low, 2V input logic level high
• 0°C ~ 70°C operating temperature range
• 14-SOIC surface mount package

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Parametric Equivalent): SN74AS1032AD is the primary substitute for DM74AS1032AM. This Texas Instruments part maintains identical electrical performance specifications and is currently in active production status, ensuring long-term availability. The part carries ROHS3 compliance certification.

For Functional Substitution: SN74AS32D and SN74AS32DR provide equivalent OR gate logic functionality with the same package and pin configuration. These parts exhibit faster propagation delay (5.8ns versus 6.3ns) and reduced output current capability (2mA/20mA versus 48mA/48mA). SN74AS32DR is recommended over SN74AS32D due to active product status and higher inventory availability (4725 units versus 855 units). Both parts are ROHS3 compliant.

Selection between parametric equivalent and functional equivalents depends on output current requirements. Applications requiring 48mA output current must use SN74AS1032AD. Applications with lower current demands can utilize SN74AS32D or SN74AS32DR, which offer improved speed performance.

Frequently Asked Questions (FAQ)

Q: Can SN74AS32D or SN74AS32DR be used as direct replacements for DM74AS1032AM?

A: Yes, with output current considerations. All three parts share identical logic function, pin configuration, package type, and core electrical specifications. However, SN74AS32D and SN74AS32DR have reduced output current (2mA/20mA) compared to DM74AS1032AM (48mA/48mA). If your circuit requires the higher output current capability, use SN74AS1032AD instead.

Q: What is the difference between SN74AS32D and SN74AS32DR?

A: Both parts are electrically identical. The difference is packaging: SN74AS32D is supplied in Tube packaging, while SN74AS32DR is supplied in Tape & Reel (TR) format. SN74AS32DR has significantly higher inventory availability and active product status, making it the preferred choice for new designs.

Q: Is SN74AS1032AD a true equivalent to DM74AS1032AM?

A: Yes. SN74AS1032AD is a parametric equivalent with matching output current (48mA/48mA) and propagation delay (6.3ns @ 5V, 50pF) specifications. It maintains the same 14-SOIC package and operating characteristics.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SN74AS1032AD, SN74AS32D, and SN74AS32DR are all ROHS3 compliant. The original DM74AS1032AM RoHS status was not specified in available documentation.

Q: What is the MSL rating for these parts?

A: All parts, including the original DM74AS1032AM and all substitutes, have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.