CY2309CSXC-1HT Equivalent & Substitute Parts

Part Overview

The CY2309CSXC-1HT is a fanout buffer (distribution) zero delay buffer IC manufactured by Infineon Technologies. This 16-SOIC surface mount device operates at a maximum frequency of 133.33MHz with a 1:9 input-to-output ratio, designed for clock distribution applications requiring LVCMOS/LVTTL signal compatibility. The part is currently in Last Time Buy status, making identification of active equivalent and substitute parts essential for ongoing design support and procurement planning.

Substiute Parts

CY2309CSXC-1HT

Infineon TechnologiesIn Stock: 5187CY2309CSXC-1HT Datasheet

Current PartRFQ

CY2308SXC-1HT

Cypress Semiconductor CorpIn Stock: 9479CY2308SXC-1HT Datasheet

Parametric EquivalentRFQ

CY2308SXC-1T

Infineon TechnologiesIn Stock: 3699CY2308SXC-1T Datasheet

Parametric EquivalentRFQ

CY2309SXC-1HT

Infineon TechnologiesIn Stock: 40405CY2309SXC-1HT Datasheet

Parametric EquivalentRFQ

CY2309SXC-1T

Infineon TechnologiesIn Stock: 18597CY2309SXC-1T Datasheet

Parametric EquivalentRFQ

CY23S09SXC-1HT

Infineon TechnologiesIn Stock: 2134CY23S09SXC-1HT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CY2309CSXC-1HT is determined by the following critical parameters:

Primary Substitution Criteria:

• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Voltage - Supply: 3V ~ 3.6V
• Operating Temperature: 0°C ~ 70°C
• Input Signal Type: LVCMOS, LVTTL
• Output Signal Type: LVCMOS
• Frequency - Max: 133.33MHz or higher
• Ratio - Input:Output: 1:9 (for direct functional equivalence)
• PLL: Yes with Bypass
• Number of Circuits: 1

Substitution Groups:

Group 1: Direct Functional Equivalents (1:9 Ratio) Parts with identical 1:9 input-to-output ratio and all matching electrical parameters:

• CY2309SXC-1HT (Tape & Reel packaging, Active status)
• CY2309SXC-1T (Tape & Reel packaging, Active status)
• CY23S09SXC-1HT (Tape & Reel packaging, Last Time Buy status)

Group 2: Parametric Equivalents (1:8 Ratio) Parts with different input-to-output ratio (1:8 instead of 1:9) but matching all other electrical and mechanical parameters:

• CY2308SXC-1HT (Cypress Semiconductor Corp, Bulk packaging, Active status)
• CY2308SXC-1T (Infineon Technologies, Tape & Reel packaging, Active status)

Parameter Comparison

Engineering Selection Recommendations

For Direct Functional Replacement (1:9 Ratio Requirement):

Select CY2309SXC-1HT or CY2309SXC-1T as primary alternatives. Both parts are in Active product status, ensuring long-term availability and supply chain stability. CY2309SXC-1HT is available in Tape & Reel packaging with 40,345 units in stock, while CY2309SXC-1T is also Tape & Reel packaged with 18,550 units in stock. Both maintain identical electrical specifications, RoHS3 compliance, and MSL rating as the original CY2309CSXC-1HT.

CY23S09SXC-1HT is functionally equivalent but carries Last Time Buy status, indicating limited future availability. Use this part only when other Active alternatives are unavailable.

For Parametric Equivalence (1:8 Ratio Alternative):

CY2308SXC-1T (Infineon Technologies, Active status, Tape & Reel) is the preferred alternative when a 1:8 output ratio is acceptable for the application. This part maintains all other electrical and mechanical compatibility parameters. CY2308SXC-1HT (Cypress Semiconductor Corp, Active status, Bulk packaging) is also available but offers lower inventory levels (9,459 units).

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and MSL 3 (168 Hours) rating, ensuring compatibility with standard PCB assembly processes and environmental requirements.

Frequently Asked Questions (FAQ)

Q: Can CY2308SXC-1T replace CY2309CSXC-1HT directly?

A: CY2308SXC-1T is electrically and mechanically compatible in the 16-SOIC package and operates within the same voltage and temperature ranges. However, it provides a 1:8 input-to-output ratio instead of 1:9. Use this part only if your circuit design can accommodate eight output channels instead of nine.

Q: What is the difference between Bulk and Tape & Reel packaging?

A: Bulk packaging is suitable for manual assembly or small-volume applications. Tape & Reel packaging is designed for automated pick-and-place assembly equipment. Both contain identical die and electrical specifications. Select based on your assembly process requirements.

Q: Why is CY2309CSXC-1HT in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer has discontinued or is discontinuing production. Existing inventory remains available, but no new production runs are planned. For new designs or long-term production, select an Active status alternative such as CY2309SXC-1HT or CY2309SXC-1T.

Q: Are all substitute parts RoHS3 compliant?

A: CY2309SXC-1HT, CY2309SXC-1T, CY23S09SXC-1HT, and CY2308SXC-1T are confirmed ROHS3 compliant. CY2308SXC-1HT (Cypress Semiconductor Corp) does not specify RoHS status in available documentation. Verify compliance requirements with your procurement or quality department before selection.

Q: What is the MSL rating and why does it matter?

A: MSL (Moisture Sensitivity Level) 3 (168 Hours) indicates the component can be exposed to ambient conditions for up to 168 hours before soldering without requiring baking. All recommended substitutes maintain this rating, ensuring compatibility with standard PCB assembly workflows.

Q: Can I use CY2308SXC-1HT from Cypress Semiconductor instead of Infineon parts?

A: CY2308SXC-1HT is functionally compatible in package, voltage, temperature, and frequency specifications. However, it is manufactured by Cypress Semiconductor Corp rather than Infineon Technologies, and RoHS compliance status is not specified. Verify with your design and quality teams if cross-manufacturer substitution is acceptable for your application.