DM74ALS133N NAND Gate IC Equivalent & Substitute Parts

Part Overview

The DM74ALS133N is a 13-input NAND gate IC manufactured by onsemi, housed in a 16-pin DIP package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The part operates within the 4.5V to 5.5V supply voltage range and is suitable for through-hole mounting applications requiring single-channel NAND logic functionality.

Substiute Parts

DM74ALS133N

onsemiIn Stock: 4530DM74ALS133N Datasheet

Current PartRFQ

SN74ALS133N

Texas InstrumentsIn Stock: 3316SN74ALS133N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74ALS133N is determined by strict equivalence across the following parameters:

• Logic Type: NAND Gate (single channel)
• Number of Inputs: 13
• Voltage - Supply: 4.5V ~ 5.5V
• Current - Output High, Low: 400µA, 8mA
• Input Logic Level - Low: 0.8V
• Input Logic Level - High: 2V
• Max Propagation Delay @ V, Max CL: 25ns @ 5V, 50pF
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Series: 74ALS

The SN74ALS133N from Texas Instruments meets all specified electrical and mechanical parameters, qualifying it as a parametric equivalent for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS133N from Texas Instruments is the direct parametric equivalent for the obsolete DM74ALS133N. Selection of the Texas Instruments part is supported by:

• Identical electrical specifications across all functional parameters
• Active product status ensuring continued availability
• ROHS3 compliance providing regulatory alignment for new designs
• Equivalent through-hole 16-DIP packaging for direct board-level substitution
• Maintained 74ALS series compatibility

The transition from the obsolete onsemi part to the active Texas Instruments equivalent presents no functional or mechanical constraints for system integration.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS133N replace the DM74ALS133N in existing designs?

A: Yes. The SN74ALS133N meets all electrical and mechanical specifications of the DM74ALS133N, including supply voltage, output current, propagation delay, and 16-DIP package dimensions. Direct substitution is supported without circuit modification.

Q: Are there differences in packaging between these parts?

A: Both parts use identical 16-DIP (0.300", 7.62mm) through-hole packaging. The SN74ALS133N is supplied in tube packaging, while the DM74ALS133N was supplied without specified packaging format. Pin-to-pin compatibility is maintained.

Q: What is the significance of the product status difference?

A: The DM74ALS133N is classified as obsolete, indicating discontinued manufacturing and limited availability. The SN74ALS133N maintains active status, ensuring reliable sourcing for current and future applications.

Q: Does the ROHS3 compliance of the SN74ALS133N affect compatibility?

A: No. ROHS3 compliance indicates adherence to environmental and material restrictions. This status does not alter electrical performance or mechanical fit. The part remains fully compatible with existing designs.

Q: Are the input logic levels identical between both parts?

A: Yes. Both parts specify identical input logic levels: 0.8V for low and 2V for high. Threshold compatibility is maintained across all signal processing stages.