DM74132N NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74132N is a 4-channel NAND gate IC with Schmitt trigger inputs manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The DM74132N operates within the standard 7400 logic series voltage range and provides reliable switching performance for digital logic applications.

Substiute Parts

DM74132N

onsemiIn Stock: 1012DM74132N Datasheet

Current PartRFQ

SN74LS132N

Texas InstrumentsIn Stock: 13850SN74LS132N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74132N is determined by the following critical parameters:

• Logic Function: NAND gate with 4 channels and 2 inputs per channel
• Schmitt Trigger Feature: Required for noise immunity in the application
• Supply Voltage Range: 4.75V ~ 5.25V compatibility
• Package Type: 14-DIP form factor with 0.300" (7.62mm) pitch for through-hole mounting
• Propagation Delay: 22ns maximum at 5V with 15pF load
• Operating Temperature Range: 0°C ~ 70°C

The SN74LS132N from Texas Instruments meets all these substitution criteria. Both parts share identical logic configuration, package dimensions, electrical performance specifications, and operating conditions.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS132N is the direct substitute for the DM74132N based on functional equivalence and electrical compatibility. Key selection factors:

Product Status: The DM74132N is obsolete, while the SN74LS132N maintains active production status, ensuring long-term availability and supply chain reliability.

Compliance: The SN74LS132N is ROHS3 compliant, meeting current environmental and regulatory requirements. The DM74132N is RoHS non-compliant, which may restrict use in new designs subject to RoHS directives.

Electrical Performance: Both parts deliver identical propagation delay specifications (22ns @ 5V, 15pF) and operate within the same supply voltage range. The SN74LS132N exhibits lower output current specifications (400µA/8mA versus 800µA/16mA), which is characteristic of LS-series logic and remains compatible with standard TTL/CMOS interface requirements.

Package Compatibility: Both components use the 14-DIP through-hole package with identical pitch and dimensions, enabling direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS132N replace the DM74132N in existing designs?

A: Yes. The SN74LS132N is electrically and functionally equivalent to the DM74132N. Both parts share identical logic configuration, package dimensions, supply voltage range, and propagation delay specifications. Direct substitution is possible without circuit modifications.

Q: What are the differences in output current between these parts?

A: The DM74132N specifies 800µA high and 16mA low output current, while the SN74LS132N specifies 400µA high and 8mA low output current. The SN74LS132N's lower output current is typical of LS-series logic. Both values remain compatible with standard TTL and CMOS input thresholds.

Q: Are there input threshold differences?

A: Minor differences exist. The DM74132N specifies input logic levels of 0.6V (low) and 2V (high), while the SN74LS132N specifies 0.5V (low) and 1.9V (high). Both operate within acceptable Schmitt trigger hysteresis margins and are compatible with standard logic signal levels.

Q: Why is RoHS compliance important for this substitution?

A: The SN74LS132N is ROHS3 compliant, meeting environmental regulations required in many markets and applications. The obsolete DM74132N is RoHS non-compliant. For new designs or products subject to RoHS directives, the SN74LS132N is the appropriate choice.

Q: Is the 14-DIP package identical between both parts?

A: Yes. Both the DM74132N and SN74LS132N use the 14-DIP package with 0.300" (7.62mm) pitch. Pin configuration and physical dimensions are identical, enabling direct board-level substitution.

Q: What is the availability status of each part?

A: The DM74132N is classified as obsolete with limited inventory. The SN74LS132N is in active production with significantly higher stock availability, ensuring reliable supply for current and future production requirements.