CY2309CSXC-1 Equivalent & Substitute Parts

Part Overview

The CY2309CSXC-1 is a Fanout Buffer (Distribution) Zero Delay Buffer IC manufactured by Infineon Technologies, designed for clock/timing applications. This device features a 1:9 input-to-output ratio with a maximum frequency of 133.33MHz and operates on a 3V to 3.6V supply. The part is packaged in a 16-SOIC (0.154", 3.90mm Width) surface mount package and is ROHS3 compliant with MSL 3 rating.

The CY2309CSXC-1 is currently listed as Obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Manufacturer	Infineon Technologies
Category	Clock/Timing
Type	Fanout Buffer (Distribution), Zero Delay Buffer
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Ratio - Input:Output	1:9
Frequency - Max	133.33MHz
Voltage - Supply	3V ~ 3.6V
Operating Temperature	0°C ~ 70°C
Input Type	LVCMOS, LVTTL
Output Type	LVCMOS
PLL	Yes with Bypass
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

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

Primary Substitutes (Full Electrical Equivalents):

CY2309SXC-1, CY2309SXC-1H, and CY2309CSXC-1H maintain identical electrical specifications: 1:9 input-to-output ratio, 133.33MHz maximum frequency, 3V to 3.6V supply voltage, LVCMOS/LVTTL input, and LVCMOS output. These parts differ only in packaging format (Tube vs. Tape) and product status. All are packaged in 16-SOIC and support the same operating temperature range.

Secondary Substitutes (Reduced Output Count):

CY2308SXC-1 and CY2308SXC-1H feature a 1:8 input-to-output ratio instead of 1:9. These parts are electrically compatible in applications where eight outputs are sufficient. They share identical supply voltage, frequency rating, input/output signal types, package format, and thermal specifications with the main part.

All substitute parts are manufactured by Infineon Technologies, use the same 16-SOIC package, and maintain compliance with ROHS3 and MSL 3 standards.

Parameter Comparison

Part Number	Ratio (Input:Output)	Frequency - Max	Voltage - Supply	Package	Product Status	Inventory (Pcs)
CY2309CSXC-1	1:9	133.33MHz	3V ~ 3.6V	16-SOIC	Obsolete	2101
CY2309SXC-1	1:9	133.33MHz	3V ~ 3.6V	16-SOIC	Active	7757
CY2309SXC-1H	1:9	133.33MHz	3V ~ 3.6V	16-SOIC	Active	4516
CY2309CSXC-1H	1:9	133.33MHz	3V ~ 3.6V	16-SOIC	Last Time Buy	2200
CY2308SXC-1	1:8	133.3MHz	3V ~ 3.6V	16-SOIC	Active	6488
CY2308SXC-1H	1:8	133.3MHz	3V ~ 3.6V	16-SOIC	Active	3630

Engineering Selection Recommendations

For Direct Replacement (1:9 Output Configuration): CY2309SXC-1 and CY2309SXC-1H are the preferred substitutes. Both are Active status parts with higher inventory availability (7757 and 4516 units respectively) compared to the obsolete CY2309CSXC-1. These parts maintain identical electrical specifications and package format. CY2309CSXC-1H is available as a Last Time Buy option with 2200 units in stock.

For Reduced Output Applications (1:8 Output Configuration): CY2308SXC-1 and CY2308SXC-1H are suitable when eight outputs satisfy design requirements. Both are Active status with strong inventory levels (6488 and 3630 units). Maximum frequency is specified as 133.3MHz versus 133.33MHz for CY2309 variants; this difference is negligible for practical applications.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and MSL 3 (168 Hours) rating, ensuring compatibility with standard manufacturing and storage protocols. All parts carry EAR99 ECCN classification and are REACH Unaffected.

Frequently Asked Questions (FAQ)

Q: Can CY2308SXC-1 replace CY2309CSXC-1 directly? A: CY2308SXC-1 is electrically compatible but provides eight outputs instead of nine. Use this substitute only if your application requires eight or fewer clock outputs. All other electrical parameters, supply voltage, frequency rating, and package format are identical.

Q: What is the difference between CY2309SXC-1 and CY2309SXC-1H? A: Both parts are electrically identical with 1:9 output ratio and 133.33MHz frequency. The difference is in packaging format. Consult your procurement requirements for tape versus tube packaging specifications.

Q: Why is CY2309CSXC-1 listed as Obsolete? A: The part has reached end-of-life status. CY2309SXC-1 and CY2309SXC-1H are the active production equivalents and should be used for new designs and ongoing production.

Q: Are all substitute parts in the same 16-SOIC package? A: Yes. All listed substitute parts use the 16-SOIC (0.154", 3.90mm Width) surface mount package, ensuring PCB layout compatibility.

Q: Do substitute parts support the same operating temperature range? A: Yes. All substitute parts operate across 0°C to 70°C, matching the original CY2309CSXC-1 specification.

Q: What is the significance of the frequency difference between CY2309 (133.33MHz) and CY2308 (133.3MHz)? A: The 0.03MHz difference is negligible for practical clock distribution applications. Both specifications support the same functional performance in timing circuits.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message