74AC11004DW Equivalent & Substitute Parts

Part Overview

The 74AC11004DW is a 6-channel inverter logic IC manufactured by Texas Instruments in a 20-SOIC surface mount package. This component is classified as Last Time Buy, indicating discontinued production with limited availability. The part operates across a 3V to 5.5V supply voltage range and is suitable for digital logic applications requiring signal inversion with fast propagation delays. Due to its Last Time Buy status, identifying functionally equivalent substitute parts is essential for design continuity and long-term component sourcing.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage - Supply	3V ~ 5.5V
Current - Quiescent (Max)	4 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.9V ~ 1.65V
Input Logic Level - High	2.1V ~ 3.85V
Max Propagation Delay @ V, Max CL	6.3ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74AC11004DW is determined by strict equivalence across the following critical parameters:

Logic function: 6-channel inverter with single input per channel
Electrical performance: Supply voltage range 3V ~ 5.5V, output drive capability 24mA, propagation delay 6.3ns @ 5V with 50pF load
Input/output logic levels: Low 0.9V ~ 1.65V, High 2.1V ~ 3.85V
Package form factor: 20-SOIC surface mount configuration
Thermal and environmental specifications: Operating temperature -40°C ~ 85°C, MSL Level 1

The 74AC11004DWR qualifies as a direct substitute based on identical electrical specifications, logic configuration, and package geometry. The primary distinction is packaging format: the main part is supplied in Tube packaging, while the substitute is supplied in Tape & Reel (TR) format. Both parts share the same base product number (74AC11004) and are manufactured by Texas Instruments.

Parameter Comparison

Parameter	74AC11004DW (Main)	74AC11004DWR (Substitute)
Manufacturer	Texas Instruments	Texas Instruments
Series	74AC	74AC
Logic Type	Inverter	Inverter
Number of Circuits	6	6
Number of Inputs	1	1
Voltage - Supply	3V ~ 5.5V	3V ~ 5.5V
Current - Quiescent (Max)	4 µA	4 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.9V ~ 1.65V	0.9V ~ 1.65V
Input Logic Level - High	2.1V ~ 3.85V	2.1V ~ 3.85V
Max Propagation Delay @ V, Max CL	6.3ns @ 5V, 50pF	6.3ns @ 5V, 50pF
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-SOIC (0.295", 7.50mm Width)	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount
Supplier Device Package	20-SOIC	20-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
Product Status	Last Time Buy	Active
Packaging Format	Tube	Tape & Reel (TR)

Engineering Selection Recommendations

The 74AC11004DWR is a direct functional equivalent to the 74AC11004DW. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The primary consideration for selection is product status and availability: the main part (74AC11004DW) is Last Time Buy with limited stock, while the substitute (74AC11004DWR) maintains Active status with ongoing availability.

For new designs or long-term production requirements, the 74AC11004DWR is the appropriate selection. For existing designs currently using the 74AC11004DW in Tube packaging, the 74AC11004DWR in Tape & Reel format provides identical electrical and functional performance with the advantage of continued manufacturer support and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the 74AC11004DWR replace the 74AC11004DW in existing designs?

A: Yes. Both parts are electrically and functionally identical. They share identical logic configuration, electrical specifications, operating temperature range, and 20-SOIC package geometry. The only difference is the packaging format (Tube versus Tape & Reel).

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging supplies components in plastic tubes for manual handling and small-quantity applications. Tape & Reel packaging supplies components on continuous tape wound on reels for automated assembly equipment. Both formats contain the same component with identical specifications.

Q: Are there any compatibility issues when switching from 74AC11004DW to 74AC11004DWR?

A: No compatibility issues exist. The parts are pin-compatible, electrically equivalent, and have identical thermal and environmental specifications. PCB layout, schematic connections, and assembly processes remain unchanged.

Q: Why is the 74AC11004DW marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. Existing inventory is available for a limited time. The 74AC11004DWR remains in Active production status, making it the recommended choice for ongoing component sourcing.

Q: What are the key electrical parameters that define substitution for this inverter IC?

A: Substitution is determined by: 6-channel inverter configuration, 3V to 5.5V supply voltage range, 24mA output drive capability, 6.3ns propagation delay at 5V with 50pF load, and 20-SOIC surface mount package. All these parameters are identical between the main part and substitute.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the 74AC11004DW and 74AC11004DWR operate across -40°C to 85°C, with identical quiescent current (4 µA maximum) and input/output logic level specifications.

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