CY29FCT818CTPC Equivalent & Substitute Parts

Part Overview

The CY29FCT818CTPC is an 8-bit pipeline shift register logic IC manufactured by Texas Instruments in the 29FCT series. This component functions as a universal register with tri-state output capability, designed for diagnostic scanning applications. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations. The original through-hole 24-DIP packaging limits modern manufacturing flexibility, necessitating evaluation of surface-mount alternatives that maintain electrical and functional equivalence.

Substiute Parts

CY29FCT818CTPC

Texas InstrumentsIn Stock: 1027CY29FCT818CTPC Datasheet

Current PartRFQ

CY29FCT818CTSOCT

Texas InstrumentsIn Stock: 906CY29FCT818CTSOCT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CY29FCT818CTPC is determined by strict equivalence across the following electrical and functional parameters:

• Series alignment: 29FCT series designation
• Logic function: 8-bit pipeline shift register with universal function capability
• Output configuration: Tri-state output type
• Electrical specifications: 4.75V to 5.25V supply voltage range and -40°C to 85°C operating temperature
• Pin count and signal integrity: 24-pin configuration maintaining functional pin assignments
• Compliance standards: ROHS3 compliance and REACH unaffected status

The CY29FCT818CTSOCT qualifies as a direct substitute based on identical electrical parameters and functional specifications. The primary difference is packaging format: surface-mount 24-SOIC replaces through-hole 24-DIP, reflecting modern manufacturing standards while preserving all electrical and logical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The CY29FCT818CTSOCT is the qualified substitute for the obsolete CY29FCT818CTPC. Selection is based on the following engineering criteria:

Product Status: The main part is classified as obsolete, while the substitute maintains active product status, ensuring continued availability and manufacturing support from Texas Instruments.

Electrical Equivalence: Both parts operate within identical voltage supply ranges (4.75V to 5.25V) and temperature ranges (-40°C to 85°C), confirming functional interchangeability in circuit applications.

Compliance Alignment: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing and deployment environments.

Packaging Consideration: The transition from 24-DIP through-hole to 24-SOIC surface-mount packaging requires PCB redesign and assembly process modification. Pin-to-pin electrical functionality remains unchanged; however, board layout and soldering procedures must be adapted to the surface-mount format.

Frequently Asked Questions (FAQ)

Q: Can the CY29FCT818CTSOCT directly replace the CY29FCT818CTPC without circuit modification?

A: Electrical and functional replacement is direct. However, PCB layout modification is required due to packaging format change from through-hole DIP to surface-mount SOIC. Pin assignments and signal characteristics remain identical.

Q: Are there any voltage or temperature operating differences between these parts?

A: No. Both parts operate within the identical supply voltage range of 4.75V to 5.25V and temperature range of -40°C to 85°C. Electrical specifications are fully equivalent.

Q: Why is the main part classified as obsolete?

A: The CY29FCT818CTPC is obsolete due to market transition toward surface-mount technology. The CY29FCT818CTSOCT represents the current-generation equivalent in modern packaging format.

Q: Do both parts meet current regulatory compliance standards?

A: Yes. Both the CY29FCT818CTPC and CY29FCT818CTSOCT are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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

A: The sole difference is packaging format. The main part uses 24-DIP through-hole mounting; the substitute uses 24-SOIC surface-mount. All electrical parameters, pin counts, and functional specifications are identical.

Q: Is the CY29FCT818CTSOCT available in tape and reel packaging?

A: Yes. The substitute part is supplied in tape and reel (TR) format, standard for surface-mount component distribution and automated assembly processes.