74ACT11623DW Equivalent & Substitute Parts

Part Overview

The 74ACT11623DW is a non-inverting transceiver logic IC manufactured by Texas Instruments, designed for 8-bit data bus applications with 3-state output capability. This device operates within the 4.5V to 5.5V supply voltage range and is housed in a 24-SOIC surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

74ACT11623DW

Texas InstrumentsIn Stock: 78874ACT11623DW Datasheet

Current PartRFQ

74ACT11245DW

Texas InstrumentsIn Stock: 75274ACT11245DW Datasheet

Parametric EquivalentRFQ

MC74ACT646DWG

onsemiIn Stock: 972MC74ACT646DWG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ACT11623DW is determined by strict alignment of the following critical parameters:

• Logic Type: Transceiver, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Current - Output High, Low: 24mA, 24mA
• Voltage - Supply: 4.5V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 24-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

All identified substitute parts meet these electrical and mechanical specifications, ensuring functional compatibility within the original application context.

Parameter Comparison

Engineering Selection Recommendations

Both 74ACT11245DW and MC74ACT646DWG meet the complete electrical and mechanical specifications of the 74ACT11623DW. Selection between these alternatives should be based on product availability and lifecycle status:

The 74ACT11245DW, manufactured by Texas Instruments with Last Time Buy status, represents the primary equivalent option. This part maintains identical electrical characteristics, package configuration, and RoHS3 compliance with MSL rating of 1 (Unlimited), matching the original device's handling requirements.

The MC74ACT646DWG, manufactured by onsemi, provides a secondary equivalent option. While electrically identical, this part carries an MSL rating of 3 (168 Hours), requiring controlled moisture exposure during storage and handling. This difference may impact supply chain logistics and storage protocols compared to the original part.

Both substitutes are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment with the original 74ACT11623DW.

Frequently Asked Questions (FAQ)

Q: What makes 74ACT11245DW and MC74ACT646DWG functionally equivalent to 74ACT11623DW?

A: Both substitute parts match all critical electrical parameters: 8-bit non-inverting transceiver configuration, 3-state output, 24mA output current capability, 4.5V to 5.5V supply voltage range, -40°C to 85°C operating temperature, and 24-SOIC surface mount package. These parameters define functional compatibility for bus transceiver applications.

Q: Are there any differences between the substitute parts?

A: The primary difference is the Moisture Sensitivity Level (MSL). The 74ACT11245DW has MSL 1 (Unlimited), while MC74ACT646DWG has MSL 3 (168 Hours). This affects storage and handling requirements but does not impact electrical performance in the application.

Q: Can these parts be used interchangeably on the same PCB?

A: Yes. All three parts share identical 24-SOIC package dimensions (0.295", 7.50mm Width) and surface mount configuration, allowing direct footprint compatibility without PCB redesign.

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

A: The 74ACT11623DW is classified as Obsolete, while 74ACT11245DW is Last Time Buy. This indicates varying levels of manufacturer support and availability. The MC74ACT646DWG is also Obsolete. Availability should be verified with component distributors for long-term supply planning.

Q: Do all parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.