74HC299D,653 Equivalent & Substitute Parts

Part Overview

The 74HC299D,653 is a universal shift register manufactured by Nexperia USA Inc., designed for multiplexed 8-bit shift register applications in logic circuits. This component features tri-state output capability and operates across a 2V to 6V supply voltage range. The part is currently in active product status with 2805 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or when design requirements favor alternative packaging or thermal specifications. The 74HC299 series maintains functional equivalence across qualified manufacturers, allowing for direct substitution when electrical and mechanical parameters align.

Substiute Parts

74HC299D,653

Nexperia USA Inc.In Stock: 288974HC299D,653 Datasheet

Current PartRFQ

CD74HC299M

Texas InstrumentsIn Stock: 2280CD74HC299M Datasheet

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CD74HC299M96

Texas InstrumentsIn Stock: 1734CD74HC299M96 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC299D,653 is determined by the following critical parameters:

Functional Equivalence Parameters:

• Logic Type: Register, Multiplexed
• Number of Elements: 1
• Number of Bits per Element: 8
• Function: Universal
• Output Type: Tri-State

Electrical Compatibility Parameters:

• Voltage - Supply: 2V ~ 6V
• Operating Temperature Range: Must support minimum -40°C operation

Mechanical Compatibility Parameters:

• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The identified substitute parts CD74HC299M and CD74HC299M96 maintain identical functional specifications and package geometry. Both are manufactured by Texas Instruments and comply with all required certifications. Differences exist only in packaging format (Tube vs. Cut Tape & Digi-Reel®) and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 74HC299D,653 (Nexperia)

The 74HC299D,653 remains the preferred choice for new designs and ongoing production. This part maintains active product status with the highest inventory availability (2805 units). The component meets all ROHS3 compliance requirements and operates within the specified -40°C to 125°C temperature range.

Secondary Selection: CD74HC299M96 (Texas Instruments)

The CD74HC299M96 is suitable for applications requiring extended low-temperature operation (-55°C minimum vs. -40°C). This part carries active product status and is available in Cut Tape & Digi-Reel® packaging, accommodating both manual and automated assembly workflows. Inventory availability is 1688 units.

Tertiary Selection: CD74HC299M (Texas Instruments)

The CD74HC299M functions as a direct electrical equivalent but carries Last Time Buy status, indicating discontinued production. This part is suitable only for replacement or repair applications where existing inventory exists. Tube packaging is provided with 2200 units currently available.

All three parts satisfy ROHS3 compliance, REACH unaffected status, and identical functional specifications. Selection should prioritize product lifecycle status and packaging requirements for the intended application.

Frequently Asked Questions (FAQ)

Q: Can CD74HC299M96 replace 74HC299D,653 in existing designs?

A: Yes. Both parts maintain identical functional specifications, electrical parameters, and 20-SOIC package geometry. The CD74HC299M96 offers extended low-temperature operation (-55°C vs. -40°C minimum), making it suitable for wider temperature range applications.

Q: What is the difference between CD74HC299M and CD74HC299M96?

A: Both parts are functionally equivalent with identical electrical specifications. The primary difference is packaging format: CD74HC299M is supplied in Tube packaging, while CD74HC299M96 is supplied in Cut Tape & Digi-Reel® format. CD74HC299M carries Last Time Buy status, indicating production discontinuation.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 20-SOIC package with identical pinout and electrical characteristics, enabling direct PCB-level substitution without design modification.

Q: Which part should be selected for new production designs?

A: The 74HC299D,653 is recommended for new designs due to active product status and highest inventory availability. If extended low-temperature operation is required, CD74HC299M96 is the appropriate alternative.

Q: Do all parts meet RoHS compliance requirements?

A: Yes. All three parts are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting standard industrial compliance requirements.

Q: What packaging considerations apply to each part?

A: The 74HC299D,653 is supplied in Tape & Reel format suitable for high-volume automated assembly. CD74HC299M96 offers Cut Tape & Digi-Reel® packaging for flexible assembly volumes. CD74HC299M is supplied in Tube packaging for lower-volume or manual assembly applications.