CD74HC374E-NG Equivalent & Substitute Parts

Part Overview

The CD74HC374E-NG is a Logic category integrated circuit manufactured by Texas Instruments, functioning as a Flip Flop with 1 Element D-Type configuration and 8-bit capacity. This component operates as a standard D-Type flip flop with tri-state, non-inverted output, designed for positive edge triggering applications. The part is currently in Active product status with 1006 pieces available in new original inventory.

Substitute parts become necessary when the primary manufacturer part experiences supply constraints, when design requirements permit functional equivalents, or when alternative packaging or compliance certifications are required for specific applications.

Substiute Parts

CD74HC374E-NG

Texas InstrumentsIn Stock: 1018CD74HC374E-NG Datasheet

Current PartRFQ

CD74HC374E

Harris CorporationIn Stock: 1408CD74HC374E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74HC374E-NG is determined by strict parametric matching across the following critical criteria:

Functional Parameters: The substitute part must maintain identical D-Type flip flop architecture with 1 element, 8-bit configuration, tri-state non-inverted output, and positive edge triggering.

Electrical Performance: Clock frequency, propagation delay, voltage supply range, output current ratings, quiescent current, and input capacitance must match the specified values exactly.

Physical Compatibility: Package type must be 20-DIP (0.300", 7.62mm) with through-hole mounting to ensure mechanical and electrical compatibility with existing PCB designs.

Temperature Rating: Operating temperature range of -55°C to 125°C must be maintained.

Series Classification: Parts must belong to the 74HC logic series to ensure consistent electrical characteristics and logic family compatibility.

The substitute part CD74HC374E from Harris Corporation meets all parametric requirements for functional equivalence, despite differences in product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CD74HC374E-NG (Texas Instruments) is the recommended choice for new designs and applications requiring active product status and current RoHS3 compliance certification. This part maintains full inventory availability and meets modern environmental and regulatory standards.

Substitute Selection: CD74HC374E (Harris Corporation) provides parametric equivalence for applications where functional compatibility is the sole requirement. However, this part carries Obsolete product status and does not meet RoHS compliance standards. Selection of this substitute is appropriate only when:

• Existing inventory must be utilized in legacy system maintenance
• Design specifications explicitly permit obsolete component usage
• RoHS compliance is not a contractual or regulatory requirement
• Supply chain constraints prevent access to the primary part

Compliance Consideration: Applications subject to RoHS directives, environmental regulations, or customer specifications requiring current compliance certifications must use the CD74HC374E-NG. The Harris Corporation equivalent does not satisfy these requirements.

Frequently Asked Questions (FAQ)

Q: Can CD74HC374E from Harris Corporation be used as a direct replacement for CD74HC374E-NG from Texas Instruments?

A: Yes, from a functional and electrical standpoint. Both parts are parametrically identical across all critical specifications: D-Type flip flop architecture, 8-bit configuration, 60 MHz clock frequency, 28 ns propagation delay, tri-state output, and 20-DIP package. However, product status and compliance differences must be evaluated against application requirements.

Q: What is the difference in product status between these parts?

A: CD74HC374E-NG is Active, indicating current manufacturing and full supplier support. CD74HC374E is Obsolete, meaning Harris Corporation no longer manufactures this part. Obsolete status affects long-term availability and support.

Q: Does RoHS compliance matter for my application?

A: RoHS compliance is mandatory for products sold in the European Union and increasingly required by major OEMs and government contracts. CD74HC374E-NG meets ROHS3 standards; CD74HC374E does not. Verify your application's regulatory and contractual requirements before selecting the substitute.

Q: Are the packages physically identical?

A: Yes. Both parts use 20-DIP (0.300", 7.62mm) through-hole packaging. PCB layouts and mechanical mounting are fully compatible.

Q: What is the difference between Tube and unspecified packaging?

A: CD74HC374E-NG packaging format is not specified in available data. CD74HC374E is supplied in Tube format. Packaging format affects handling, storage, and quantity per container but does not impact electrical performance or PCB compatibility.

Q: Can I mix these parts in the same production batch?

A: Mixing is not recommended for products subject to traceability, compliance documentation, or quality assurance requirements. Maintain consistent part sourcing within a single production run to ensure uniform documentation and compliance records.

Q: What inventory levels are available?

A: CD74HC374E-NG has 1006 pieces in new original stock. CD74HC374E has 1396 pieces available. Verify current inventory with your supplier before committing to design decisions.