74AC11244DW Equivalent & Substitute Parts

Part Overview

The 74AC11244DW is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, designed for digital signal buffering applications requiring 3-state output control. This device features 2 elements with 4 bits per element, operating across a supply voltage range of 3V to 5.5V with output current capability of 24mA for both high and low states.

The 74AC11244DW carries a Last Time Buy product status, indicating that this part number is no longer in active production. Identifying equivalent substitute parts is necessary to ensure continued availability for new designs, production continuity, and long-term component sourcing strategies.

Substiute Parts

74AC11244DW

Texas InstrumentsIn Stock: 125974AC11244DW Datasheet

Current PartRFQ

74AC11244DWR

Texas InstrumentsIn Stock: 200574AC11244DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74AC11244DW is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Current - Output High, Low: 24mA, 24mA
• Voltage - Supply: 3V ~ 5.5V
• Operating Temperature: -40°C ~ 85°C (TA)
• Package / Case: 24-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

The 74AC11244DWR qualifies as a direct substitute because it maintains identical electrical specifications, functional characteristics, and physical packaging. The difference between these part numbers reflects packaging format only: the DW variant is supplied in Tube packaging, while the DWR variant is supplied in Cut Tape (CT) & Digi-Reel® format.

Parameter Comparison

Engineering Selection Recommendations

The 74AC11244DWR is the direct functional equivalent of the 74AC11244DW. Both parts are manufactured by Texas Instruments and maintain identical electrical performance, logic functionality, and physical form factor specifications.

The primary distinction between these parts is product status and packaging format. The 74AC11244DW is designated Last Time Buy, indicating discontinued production. The 74AC11244DWR maintains Active product status with current manufacturing availability. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting current regulatory requirements.

For new designs or production continuity, the 74AC11244DWR is the appropriate selection. The Cut Tape and Digi-Reel® packaging format of the DWR variant provides standard supply chain compatibility and is suitable for automated assembly processes. Existing inventory of 74AC11244DW components may be used interchangeably with 74AC11244DWR in applications where the electrical and mechanical specifications are met.

Frequently Asked Questions (FAQ)

Q: Can the 74AC11244DWR directly replace the 74AC11244DW in existing designs?

A: Yes. The 74AC11244DWR is electrically and functionally identical to the 74AC11244DW. Both parts feature the same logic type, element count, bit configuration, output type, current ratings, supply voltage range, operating temperature range, and 24-SOIC package dimensions. The parts are pin-for-pin compatible.

Q: What is the difference between the DW and DWR part numbers?

A: The difference is packaging format only. The 74AC11244DW is supplied in Tube packaging, while the 74AC11244DWR is supplied in Cut Tape (CT) & Digi-Reel® format. The die and electrical specifications are identical.

Q: Why is the 74AC11244DW marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued production of this specific part number variant. The 74AC11244DWR remains in active production and is the recommended part for ongoing sourcing.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the 74AC11244DW and 74AC11244DWR carry identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings.

Q: What is the 24-SOIC package specification?

A: The 24-SOIC package is a surface-mount integrated circuit package with 24 pins, measuring 0.295 inches (7.50mm) in width. This is a standard package format for logic integrated circuits and is compatible with automated assembly equipment.

Q: Can the 74AC11244DWR be used in high-temperature applications?

A: The 74AC11244DWR operates across the temperature range of -40°C to 85°C (TA). Applications requiring operation outside this range require alternative components with extended temperature specifications.