Equivalent & Substitute Parts for 9DB833AFILF

Part Overview

The 9DB833AFILF is a PCI Express (PCIe) Fanout Buffer with Zero Delay capability, manufactured by Renesas Electronics Corporation. This clock distribution IC operates at a maximum frequency of 166MHz with a 1:8 input-to-output ratio, featuring HCSL differential signaling on both input and output. The device is packaged in a 48-SSOP configuration and is currently classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is necessary for ongoing system support, design updates, and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer	Renesas Electronics Corporation
Category	Clock/Timing
Main Purpose	PCI Express (PCIe)
Frequency - Max	166MHz
Input/Output Ratio	1:8
Input Signal Type	HCSL
Output Signal Type	HCSL
Differential Signaling	Yes/Yes (Input/Output)
Voltage Supply Range	3.135V ~ 3.465V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Number of Circuits	1
PLL	Yes
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 9DB833AFILF is determined by the following critical parameters:

Functional Equivalence: PCI Express (PCIe) fanout buffer with zero delay capability
Signal Integrity: HCSL differential input and output
Distribution Ratio: 1:8 input-to-output configuration
Frequency Compatibility: Maximum operating frequency of 166MHz or higher
Electrical Specifications: Supply voltage range 3.135V ~ 3.465V, operating temperature -40°C ~ 85°C
Compliance: ROHS3 compliance and REACH unaffected status
Mounting: Surface mount technology

The identified substitute parts maintain these core parameters while offering variations in packaging, product status, and frequency headroom. Both substitute parts are manufactured by Renesas Electronics Corporation and share the same base functional architecture.

Parameter Comparison

Parameter	9DB833AFILF (Main)	9DB833AGILF (Substitute)	9DBL0841BKILF (Substitute)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Category	Clock/Timing	Clock/Timing	Clock/Timing
Main Purpose	PCI Express (PCIe)	PCI Express (PCIe)	PCI Express (PCIe)
Frequency - Max	166MHz	166MHz	200MHz
Input/Output Ratio	1:8	1:8	1:8
Input Signal Type	HCSL	HCSL	HCSL
Output Signal Type	HCSL	HCSL	HCSL
Differential Signaling	Yes/Yes	Yes/Yes	Yes/Yes
Voltage - Supply	3.135V ~ 3.465V	3.135V ~ 3.465V	3.135V ~ 3.465V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Number of Circuits	1	1	1
PLL	Yes	Yes	Yes
Package / Case	48-BSSOP (0.295", 7.50mm Width)	48-TFSOP (0.240", 6.10mm Width)	48-VFQFN Exposed Pad (6x6)
Product Status	Obsolete	Active	Obsolete
MSL Rating	3 (168 Hours)	1 (Unlimited)	3 (168 Hours)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

9DB833AGILF is the primary recommended substitute. This part maintains identical electrical specifications and frequency performance while offering an active product status, ensuring long-term availability and manufacturer support. The transition from 48-BSSOP to 48-TFSOP packaging requires PCB layout modification but provides a smaller footprint. The MSL rating of 1 (unlimited moisture sensitivity) offers superior handling characteristics compared to the original part's MSL 3 rating.

9DBL0841BKILF provides an alternative with enhanced frequency headroom at 200MHz, accommodating future performance requirements. However, this part carries an obsolete product status, limiting its suitability for new designs requiring long-term supply assurance. The 48-VFQFN package represents a significant form factor change from the original 48-SSOP, requiring substantial PCB redesign. This option is suitable only when frequency upgrade is a critical design requirement and supply chain risk is acceptable.

For applications requiring immediate replacement with minimal redesign effort and assured long-term availability, 9DB833AGILF is the optimal selection.

Frequently Asked Questions (FAQ)

Q: Can 9DB833AGILF be used as a direct drop-in replacement for 9DB833AFILF?

A: Electrical and functional compatibility is confirmed. However, the package change from 48-BSSOP to 48-TFSOP requires PCB layout modification. Pin assignments and signal integrity characteristics remain equivalent.

Q: What are the key differences between the substitute parts?

A: 9DB833AGILF maintains the 166MHz frequency specification with active product status and improved moisture handling (MSL 1). 9DBL0841BKILF offers 200MHz maximum frequency but remains obsolete and requires significant package redesign (48-VFQFN).

Q: Are there any compliance or certification differences?

A: All three parts maintain ROHS3 compliance and REACH unaffected status. No compliance barriers exist for substitution.

Q: What is the impact of the package change from 48-BSSOP to 48-TFSOP?

A: The 48-TFSOP package is narrower (0.240" vs 0.295"), requiring PCB footprint redesign. Signal layer routing and via placement may require optimization to maintain signal integrity for PCIe applications.

Q: Is 9DBL0841BKILF suitable for new product designs?

A: Due to obsolete product status, this part is not recommended for new designs. It is suitable only for legacy system support where frequency upgrade justifies the redesign effort and supply risk is acceptable.

Q: What is the moisture sensitivity level (MSL) impact?

A: 9DB833AGILF has MSL 1 (unlimited shelf life), while both the original and 9DBL0841BKILF have MSL 3 (168-hour limit). MSL 1 provides superior handling flexibility and reduced risk of moisture-induced failures during storage and assembly.

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