DM74LS30N NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74LS30N is a NAND Gate IC featuring 1 channel with 8 inputs in a 14-MDIP package. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing system maintenance and new design implementations. The 74LS series logic gate remains widely used in legacy systems and applications requiring TTL-compatible switching logic.

Substiute Parts

DM74LS30N

onsemiIn Stock: 23204DM74LS30N Datasheet

Current PartRFQ

SN74LS30N

onsemiIn Stock: 3784SN74LS30N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74LS30N is determined by strict equivalence across the following critical parameters:

• Logic function: NAND Gate with identical circuit configuration
• Number of inputs: 8 inputs
• Number of circuits: 1 channel
• Supply voltage range: 4.75V ~ 5.25V
• Output current specifications: 400µA (high), 8mA (low)
• Input logic thresholds: 0.8V (low), 2V (high)
• Operating temperature range: 0°C ~ 70°C
• Package type: 14-DIP through-hole mounting
• Base product number: 74LS30

The SN74LS30N meets all substitution criteria as a direct functional equivalent within the 74LS logic family.

Parameter Comparison

Engineering Selection Recommendations

Both the DM74LS30N and SN74LS30N are classified as obsolete products with RoHS non-compliant status. Selection between these parts should be based on availability and inventory status. The SN74LS30N variant offers 3,750 units in current stock, while the DM74LS30N maintains 23,137 units. Both parts carry identical electrical specifications and package configurations, ensuring direct functional interchangeability in 14-DIP through-hole applications requiring 8-input NAND gate logic at TTL voltage levels.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS30N directly replace the DM74LS30N in existing designs?

A: Yes. Both parts are functionally equivalent with identical logic configuration, supply voltage range, input/output current specifications, and operating temperature range. The 14-DIP package footprint is identical, enabling direct board-level substitution.

Q: What is the significance of the different propagation delay specifications?

A: The DM74LS30N specifies 20ns propagation delay at 50pF load capacitance, while the SN74LS30N specifies 20ns at 15pF load capacitance. Both meet the same maximum propagation delay requirement; the difference reflects measurement conditions. For applications with load capacitance below 15pF, either part is suitable. For loads between 15pF and 50pF, verify the SN74LS30N performance characteristics with the manufacturer.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts share identical RoHS non-compliant and REACH unaffected status. No compliance differentiation exists between the two variants.

Q: What mounting considerations apply to these parts?

A: Both parts use through-hole mounting in 14-DIP packages with 0.300" (7.62mm) row spacing. Standard DIP sockets and through-hole PCB footprints are compatible with both variants.