CY29FCT520ATPC Equivalent & Substitute Parts

Part Overview

The CY29FCT520ATPC is an 8-bit pipeline shift register manufactured by Texas Instruments in the 29FCT logic series. This component functions as a universal register with tri-state output capability, designed for digital logic applications requiring pipeline data processing. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations. The CY29FCT520ATSOC provides functional equivalence with modified packaging specifications.

Substiute Parts

CY29FCT520ATPC

Texas InstrumentsIn Stock: 1502CY29FCT520ATPC Datasheet

Current PartRFQ

CY29FCT520ATSOC

Texas InstrumentsIn Stock: 989CY29FCT520ATSOC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution between CY29FCT520ATPC and CY29FCT520ATSOC is determined by electrical and functional parameter equivalence. Both parts share identical specifications across the following critical parameters:

• Logic type and function (Register, Pipeline; Universal)
• Bit configuration (1 element, 8 bits per element)
• Output characteristics (Tri-State)
• Electrical performance (4.75V ~ 5.5V supply voltage)
• Operating temperature range (-40°C ~ 85°C)
• Compliance certifications (ROHS3, REACH Unaffected)
• Moisture sensitivity classification (MSL 1)

The primary distinction between these parts is packaging format: CY29FCT520ATPC uses through-hole 24-DIP mounting, while CY29FCT520ATSOC employs surface-mount 24-SOIC packaging. This difference affects board layout and assembly methodology but does not alter electrical functionality or pin configuration.

Parameter Comparison

Engineering Selection Recommendations

Selection between CY29FCT520ATPC and CY29FCT520ATSOC depends on board assembly technology and design constraints:

For through-hole assembly applications, CY29FCT520ATPC remains viable where inventory is available, despite obsolete status. The part maintains full ROHS3 compliance and unlimited moisture sensitivity rating.

For new designs or surface-mount assembly processes, CY29FCT520ATSOC is the appropriate selection. This part carries active product status from Texas Instruments, ensuring continued availability and manufacturing support. Electrical and functional specifications are identical to the through-hole variant, with substitution requiring only PCB layout and assembly methodology adjustments.

Both parts satisfy identical compliance requirements (ROHS3, REACH Unaffected, EAR99 ECCN classification).

Frequently Asked Questions (FAQ)

Q: Can CY29FCT520ATSOC directly replace CY29FCT520ATPC in existing designs?

A: Electrical and functional replacement is complete. Physical board layout modification is required due to packaging differences (through-hole versus surface-mount). Pin configuration and signal characteristics remain identical.

Q: What is the significance of the obsolete status for CY29FCT520ATPC?

A: Obsolete classification indicates Texas Instruments has discontinued active manufacturing and support. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. CY29FCT520ATSOC provides equivalent functionality with active product status.

Q: Are there electrical performance differences between the two packages?

A: No. Both parts operate within identical voltage ranges (4.75V ~ 5.5V), temperature specifications (-40°C ~ 85°C), and functional parameters. Package format does not affect electrical performance.

Q: What assembly considerations apply when switching from DIP to SOIC packaging?

A: CY29FCT520ATPC requires through-hole PCB mounting and wave soldering or manual insertion processes. CY29FCT520ATSOC requires surface-mount PCB pads and reflow soldering. Pin pitch and footprint dimensions differ; PCB redesign is necessary.

Q: Do both parts meet current compliance standards?

A: Yes. Both CY29FCT520ATPC and CY29FCT520ATSOC are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.