SN74LS06DG4 Equivalent & Substitute Parts

Part Overview

The SN74LS06DG4 is a 6-channel inverter IC with open collector output configuration, housed in a 14-SOIC surface mount package. This device is classified as discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The open collector architecture enables direct interfacing with multiple voltage domains and load configurations common in legacy and modern digital systems.

Substiute Parts

SN74LS06DG4

Texas InstrumentsIn Stock: 753SN74LS06DG4 Datasheet

Current PartRFQ

SN74LS06D

Texas InstrumentsIn Stock: 2043SN74LS06D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS06DG4 is determined by strict equivalence across the following parameters:

• Logic type (Inverter)
• Number of circuits (6 channels)
• Number of inputs per circuit (1)
• Output configuration (Open Collector)
• Supply voltage range (4.75V ~ 5.25V)
• Output current capability (40mA maximum low)
• Input logic thresholds (0.8V low, 2V high)
• Propagation delay (20ns @ 5V, 15pF)
• Operating temperature range (0°C ~ 70°C)
• Package type (14-SOIC)
• Base product series (74LS)

The SN74LS06D qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction is product status and packaging format (tube vs. alternative packaging).

Parameter Comparison

Engineering Selection Recommendations

The SN74LS06D is the direct substitute for the SN74LS06DG4. Both devices are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications. The SN74LS06D carries active product status, ensuring continued availability and supply chain reliability. Both parts maintain ROHS3 compliance and MSL Level 1 rating, meeting environmental and moisture handling requirements for standard manufacturing processes. Selection of the SN74LS06D eliminates obsolescence risk while preserving full functional and electrical compatibility with existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS06D directly replace the SN74LS06DG4 in existing designs?

A: Yes. Both devices are electrically and mechanically identical. The SN74LS06D operates within the same voltage range (4.75V ~ 5.25V), delivers identical output current (40mA), maintains the same propagation delay (20ns @ 5V, 15pF), and uses the same 14-SOIC package. No circuit modifications are required.

Q: What is the primary difference between these two part numbers?

A: The SN74LS06DG4 is discontinued at DiGi Electronics, while the SN74LS06D maintains active product status. The packaging format differs (the suffix indicates different packaging configurations), but electrical specifications remain identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, carry MSL Level 1 rating, and meet identical environmental and regulatory requirements.

Q: Is the 14-SOIC package compatible with existing PCB layouts?

A: Yes. Both parts use the 14-SOIC package with identical dimensions (0.154" width, 3.90mm). PCB footprints and assembly processes require no modification.

Q: What is the open collector output configuration used for?

A: Open collector outputs enable direct interfacing with multiple voltage domains, pull-up resistor networks, and load switching applications. This configuration allows the output to sink current to ground while requiring external pull-up resistors for high-level output.