74HC280N,652 Equivalent & Substitute Parts

Part Overview

The 74HC280N,652 is a 9-bit parity generator/checker logic integrated circuit manufactured by NXP Semiconductors in a 14-DIP through-hole package. This component is classified as obsolete, indicating discontinued production and limited availability through standard distribution channels. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure project completion, and secure long-term component supply for legacy systems and new designs requiring this functional specification.

Substiute Parts

74HC280N,652

NXP SemiconductorsIn Stock: 124974HC280N,652 Datasheet

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CD74HC280E

Harris CorporationIn Stock: 2192CD74HC280E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74HC280N,652 is determined by the following critical parameters:

• Logic Function: Parity Generator/Checker with 9-bit capability
• Supply Voltage Range: 2 V ~ 6 V compatibility
• Package Type: 14-DIP (0.300", 7.62mm) through-hole configuration
• Series Compatibility: 74HC logic family

The CD74HC280E qualifies as a substitute based on matching all critical functional and physical parameters. Both parts operate within the same voltage range, provide identical 9-bit parity generation/checking functionality, and utilize the same 14-DIP package footprint. The substitute maintains electrical compatibility and pin-for-pin equivalence required for direct replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The CD74HC280E serves as a direct functional substitute for the 74HC280N,652 based on identical logic specifications and package compatibility. Both components share the same base product number (74HC280) and provide equivalent 9-bit parity generation/checking functionality within the 2 V ~ 6 V supply voltage range.

Selection between these parts should consider compliance requirements. The 74HC280N,652 maintains ROHS3 compliance, while the CD74HC280E is RoHS non-compliant. For applications subject to RoHS regulations or environmental compliance mandates, the 74HC280N,652 is the appropriate choice. For legacy systems or applications without RoHS requirements, the CD74HC280E provides functional equivalence with documented availability of 2100 units in stock.

Both parts are classified as obsolete, indicating that long-term availability cannot be guaranteed through standard distribution channels. Component selection should account for supply chain considerations and project timeline requirements.

Frequently Asked Questions (FAQ)

Q: Can the CD74HC280E be used as a direct replacement for the 74HC280N,652?

A: Yes. Both parts provide identical 9-bit parity generator/checker functionality, operate within the same 2 V ~ 6 V supply voltage range, and utilize the same 14-DIP through-hole package. Pin-for-pin compatibility is maintained, allowing direct substitution in existing circuit designs.

Q: What is the primary difference between these two parts?

A: The main differences are manufacturer (NXP Semiconductors vs. Harris Corporation) and RoHS compliance status. The 74HC280N,652 is ROHS3 compliant, while the CD74HC280E is RoHS non-compliant. Both are classified as obsolete products.

Q: Are there any electrical performance differences?

A: The CD74HC280E specifies output current ratings (5.2mA high and low) and operating temperature range (-55°C ~ 125°C), while the 74HC280N,652 does not provide these specifications in the available data. Both parts operate within the identical 2 V ~ 6 V supply voltage range and provide equivalent functional performance.

Q: Which part should be selected for new designs?

A: Both parts are obsolete and not recommended for new designs. For applications requiring 9-bit parity generation/checking functionality, evaluation of current-production alternatives within the 74HC logic family or modern equivalents is advised. If legacy compatibility is required, the 74HC280N,652 is preferred due to ROHS3 compliance.

Q: Are there packaging or mounting differences?

A: No. Both parts use identical 14-DIP (0.300", 7.62mm) through-hole packages and mounting configurations. PCB layouts and mechanical designs are fully compatible.

Q: What is the moisture sensitivity level for these parts?

A: The 74HC280N,652 specifies MSL 1 (Unlimited), indicating minimal moisture sensitivity. The CD74HC280E does not provide MSL data in the available specifications.