74ACT11245DWR Equivalent & Substitute Parts

Part Overview

The 74ACT11245DWR is a non-inverting transceiver logic IC manufactured by Texas Instruments, designed for 8-bit data bus applications with 3-state output capability. This Surface Mount device operates across a 4.5V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is currently in Active product status with 850 units in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or alternative sourcing is required for supply chain optimization. The following equivalent parts maintain identical electrical and mechanical specifications while offering alternative manufacturer options.

Substiute Parts

74ACT11245DWR

Texas InstrumentsIn Stock: 89774ACT11245DWR Datasheet

Current PartRFQ

MC74ACT646DWR2G

onsemiIn Stock: 972MC74ACT646DWR2G Datasheet

Parametric EquivalentRFQ

MC74ACT652DWR2G

onsemiIn Stock: 1070MC74ACT652DWR2G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74ACT11245DWR are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• 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)
• Series: 74ACT

All substitute parts listed maintain these electrical and mechanical parameters, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The 74ACT11245DWR remains the primary selection due to its Active product status and superior Moisture Sensitivity Level (MSL 1 - Unlimited), providing unrestricted shelf life and handling flexibility.

MC74ACT646DWR2G and MC74ACT652DWR2G are parametric equivalents with identical electrical and mechanical specifications. Both parts carry Obsolete product status and MSL 3 rating (168 hours), requiring controlled storage and handling conditions. Selection of these alternatives should be based on inventory availability and supply chain requirements, with consideration given to their limited shelf life under standard storage conditions.

All three parts maintain ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT646DWR2G and MC74ACT652DWR2G be used interchangeably with 74ACT11245DWR?

A: Yes. All three parts share identical electrical parameters (voltage supply, output current, operating temperature) and mechanical specifications (24-SOIC package, Surface Mount). They are functionally equivalent in circuit applications.

Q: What is the significance of the Obsolete product status for the onsemi parts?

A: Obsolete status indicates the manufacturer has discontinued production. These parts remain electrically and mechanically valid for use but may have limited future availability. Existing inventory can be utilized for current applications.

Q: Why do the onsemi parts have MSL 3 rating while the TI part has MSL 1?

A: MSL (Moisture Sensitivity Level) indicates moisture absorption characteristics during storage. MSL 1 allows unlimited shelf life under standard conditions, while MSL 3 requires storage below 30°C and 85% relative humidity with a 168-hour floor life after opening. This affects handling and storage protocols but does not impact electrical performance.

Q: Are all parts RoHS compliant?

A: Yes. The 74ACT11245DWR, MC74ACT646DWR2G, and MC74ACT652DWR2G are all ROHS3 Compliant and REACH Unaffected, meeting current environmental regulations.

Q: Can these parts be used in new designs?

A: The 74ACT11245DWR (Active status) is suitable for new designs. The onsemi alternatives (Obsolete status) should be used only when existing inventory is available or for legacy system maintenance, as future procurement may be constrained.