74F280PC Equivalent & Substitute Parts

Part Overview

The 74F280PC is a 9-bit parity generator/checker logic integrated circuit manufactured by onsemi in a 14-DIP through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance, repairs, and legacy product support. The 74F280 series provides reliable parity generation and checking functionality for digital systems requiring error detection capabilities.

Substiute Parts

74F280PC

onsemiIn Stock: 142774F280PC Datasheet

Current PartRFQ

SN74F280BN

Texas InstrumentsIn Stock: 3306SN74F280BN Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F280PC is determined by the following critical parameters that must remain constant:

• Logic Type: Parity Generator/Checker (9-Bit configuration)
• Voltage Supply Range: 4.5 V ~ 5.5 V
• Current Output Specifications: 1mA (High), 20mA (Low)
• Operating Temperature Range: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package Configuration: 14-DIP (0.300", 7.62mm)
• Base Product Number: 74F280

The SN74F280BN from Texas Instruments meets all these electrical and mechanical requirements, providing functional equivalence for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The SN74F280BN is the direct equivalent substitute for the 74F280PC. Both components share identical electrical characteristics and physical packaging, enabling pin-for-pin replacement in existing circuit designs.

The primary distinction is product status: the 74F280PC is obsolete, while the SN74F280BN remains in active production by Texas Instruments. This status difference ensures long-term availability and supply chain reliability for the SN74F280BN, making it the preferred choice for new designs, repairs, and legacy system maintenance.

The SN74F280BN carries ROHS3 compliance certification, providing additional environmental and regulatory assurance for applications subject to modern component standards.

Frequently Asked Questions (FAQ)

Q: Can the SN74F280BN replace the 74F280PC in existing circuits?

A: Yes. Both components are electrically and mechanically identical. The SN74F280BN provides direct pin-for-pin replacement with no circuit modifications required.

Q: What is the difference between the 74F280PC and SN74F280BN?

A: The components are functionally equivalent. The primary differences are manufacturer (onsemi vs. Texas Instruments) and product status (obsolete vs. active). The SN74F280BN is actively manufactured and available in higher quantities.

Q: Are there packaging differences between these parts?

A: Both use 14-DIP through-hole packages with identical 0.300" (7.62mm) spacing. The onsemi part uses 14-MDIP supplier packaging, while the Texas Instruments part uses 14-PDIP supplier packaging. These designations refer to supplier-specific packaging formats and do not affect electrical or mechanical compatibility.

Q: What are the key parameters for parity generator/checker substitution?

A: Critical parameters include logic type (9-bit parity generation/checking), supply voltage range (4.5 V ~ 5.5 V), output current specifications (1mA high, 20mA low), operating temperature range (0°C ~ 70°C), and physical package configuration (14-DIP through-hole).

Q: Is the SN74F280BN suitable for new designs?

A: Yes. The SN74F280BN is in active production status with ROHS3 compliance, making it appropriate for new circuit designs and long-term applications.