DM74AS04SJX Equivalent & Substitute Parts

Part Overview

The DM74AS04SJX is a 6-channel inverter logic IC manufactured by onsemi in a 14-SOP package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The DM74AS04SJX operates within the 74AS logic family and provides standard inverter functionality for digital circuit applications requiring signal inversion across six independent channels.

Substiute Parts

DM74AS04SJX

onsemiIn Stock: 1051DM74AS04SJX Datasheet

Current PartRFQ

SN74AS04D

Texas InstrumentsIn Stock: 1843SN74AS04D Datasheet

SimilarRFQ

SN74AS04DR

Texas InstrumentsIn Stock: 2221SN74AS04DR Datasheet

SimilarRFQ

SN74AS04NSR

Texas InstrumentsIn Stock: 2534SN74AS04NSR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74AS04SJX are qualified based on strict electrical and mechanical parameter matching within the 74AS logic family. All substitute candidates maintain identical functional specifications: 6-channel inverter configuration, single input per channel, 4.5V to 5.5V supply voltage operation, 2mA/20mA output current ratings, and 5ns maximum propagation delay at 5V with 50pF load. Operating temperature range, input logic thresholds, and MSL rating remain constant across all qualified substitutes.

Package compatibility is evaluated at the functional level. While the DM74AS04SJX uses a 14-SOP package (0.209" width), substitute parts employ 14-SOIC packages with varying widths (0.154" or 0.209"). Both package types are surface-mount configurations with 14-pin configurations suitable for PCB integration. Mechanical substitution requires verification of PCB footprint compatibility and board layout constraints specific to your application.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts—SN74AS04D, SN74AS04DR, and SN74AS04NSR—are electrically equivalent to the DM74AS04SJX and satisfy identical functional requirements for 6-channel inverter applications within the 74AS logic family.

SN74AS04DR is the primary recommendation for new designs. This part carries Active product status from Texas Instruments, ensuring long-term availability and supply chain stability. It is ROHS3 compliant and available in Tape & Reel packaging suitable for automated assembly processes. The 14-SOIC package with 0.154" width represents the standard form factor for this logic family.

SN74AS04NSR provides an alternative with identical electrical performance and Active status. This part uses a 14-SOIC package with 0.209" width, matching the original DM74AS04SJX package width. This configuration may be preferred if existing PCB layouts require the wider package footprint without redesign.

SN74AS04D carries Last Time Buy status, indicating limited future availability. This part is suitable for legacy system support or repair applications where supply continuity is not a primary concern.

Frequently Asked Questions (FAQ)

Q: Are all substitute parts pin-compatible with the DM74AS04SJX?

A: Yes. All substitute parts maintain identical pin configurations and electrical characteristics within the 14-pin surface-mount package format. Pin-to-pin compatibility is guaranteed across all qualified substitutes.

Q: What is the difference between the package widths (0.154" vs 0.209")?

A: Package width refers to the physical dimension of the integrated circuit body. The DM74AS04SJX and SN74AS04NSR use 0.209" width packages, while SN74AS04D and SN74AS04DR use 0.154" width packages. Both are 14-SOIC configurations. PCB footprint compatibility depends on your specific board design. Narrower packages (0.154") may require footprint adjustment if your layout was designed for the wider 0.209" package.

Q: Which substitute should I select for new production?

A: SN74AS04DR is recommended for new production designs. It maintains Active product status, ensuring availability throughout the product lifecycle, and is ROHS3 compliant for regulatory compliance.

Q: Can I use SN74AS04D as a substitute?

A: SN74AS04D is electrically equivalent and functionally compatible. However, it carries Last Time Buy status, indicating that Texas Instruments will discontinue this part. Use this substitute only for legacy system support or repair applications where long-term supply is not required.

Q: Are there any thermal or environmental differences between substitutes?

A: No. All substitute parts operate within the identical temperature range (0°C to 70°C) and maintain the same MSL rating (1 - Unlimited). Environmental performance is equivalent across all qualified substitutes.

Q: What packaging formats are available?

A: SN74AS04D is available in Tube packaging. SN74AS04DR and SN74AS04NSR are available in Tape & Reel (TR) format, which is standard for automated assembly processes. Select packaging based on your procurement and assembly requirements.