CD74HC27M96 Equivalent & Substitute Parts

Part Overview

The CD74HC27M96 is a NOR Gate IC featuring 3 channels with 3 inputs per channel in a 14-SOIC surface mount package, manufactured by Texas Instruments. This logic gate is part of the 74HC series and operates across a 2V to 6V supply voltage range with a maximum propagation delay of 16ns at 6V with 50pF load. The part is currently active in production with 2154 units in stock. Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when sourcing from multiple manufacturers is needed for supply chain resilience.

Substiute Parts

CD74HC27M96

Texas InstrumentsIn Stock: 2233CD74HC27M96 Datasheet

Current PartRFQ

CD74HC27MT

Texas InstrumentsIn Stock: 1250CD74HC27MT Datasheet

Parametric EquivalentRFQ

74HC27D,653

Nexperia USA Inc.In Stock: 1450174HC27D,653 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CD74HC27M96 are qualified based on the following criteria:

Functional Equivalence: All substitute parts must implement the same logic function (3-channel NOR gate with 3 inputs per channel).

Electrical Parameters: Supply voltage range (2V ~ 6V), quiescent current (2 µA max), output current (5.2mA), input logic levels, and propagation delay must remain within the specified tolerances.

Package Compatibility: All parts use the 14-SOIC package footprint (0.154", 3.90mm width), ensuring mechanical and electrical compatibility on the PCB.

Compliance Standards: All substitute parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status.

Allowed Variations: Propagation delay may vary within the specified range (15ns to 16ns at 6V, 50pF). Operating temperature range may extend to -40°C minimum (versus -55°C for the primary part). Packaging format (Tape & Reel versus Cut Tape) and manufacturer do not affect functional substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (CD74HC27M96): This part is the recommended choice for new designs. It is currently active in production with 2154 units in stock, ensuring immediate availability. Texas Instruments maintains full support for this part number.

First Alternative (74HC27D,653): This Nexperia part is functionally equivalent and currently active in production with 14406 units in stock, providing superior availability. The propagation delay is 15ns (1ns faster than the primary part), which is within acceptable tolerance for most applications. The operating temperature minimum is -40°C, which is suitable for commercial and industrial applications but may not meet military-grade requirements (-55°C). This part is recommended when supply of the primary part is constrained.

Secondary Alternative (CD74HC27MT): This Texas Instruments part is electrically and mechanically identical to the primary part but is discontinued at DiGi Electronics. Use only when existing inventory is available and no other alternatives are accessible. Inventory availability is lower (1148 units) compared to the primary part.

Compliance Verification: All three parts maintain ROHS3 compliance, MSL Level 1 rating, and REACH unaffected status, ensuring regulatory compliance across all substitute selections.

Frequently Asked Questions (FAQ)

Q: Can CD74HC27MT be used as a direct replacement for CD74HC27M96?

A: Yes. Both parts are manufactured by Texas Instruments and share identical electrical specifications, package dimensions, and pin configurations. The only difference is product status; CD74HC27MT is discontinued at DiGi Electronics. Use only if inventory is available.

Q: Is the Nexperia 74HC27D,653 compatible with designs using CD74HC27M96?

A: Yes. The Nexperia part is functionally equivalent with identical logic function, pin configuration, and 14-SOIC package footprint. All electrical parameters are within specification. The propagation delay is 15ns (1ns faster), which does not affect compatibility. The operating temperature range is -40°C to 125°C instead of -55°C to 125°C; verify this meets your application requirements.

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

A: Both are surface mount packaging formats for automated assembly. Tape & Reel is supplied on continuous tape for high-volume production. Cut Tape & Digi-Reel® is supplied in smaller quantities on tape segments. Functionally, there is no difference; selection depends on production volume and assembly equipment compatibility.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three parts (CD74HC27M96, CD74HC27MT, and 74HC27D,653) are ROHS3 compliant with MSL Level 1 rating, meeting environmental and regulatory requirements.

Q: Which part should I select for a new design?

A: Select CD74HC27M96 (primary part) for new designs. It is active in production with the highest inventory availability. If supply constraints occur, 74HC27D,653 from Nexperia is the recommended alternative due to superior stock levels and active production status.

Q: Can I mix different manufacturers in the same design?

A: Yes. All three parts are pin-compatible and functionally equivalent. Mixing manufacturers is acceptable for supply chain flexibility, provided all parts meet your operating temperature and performance requirements.