PI49FCT32803LE Equivalent & Substitute Parts

Part Overview

The PI49FCT32803LE is a Clock Fanout Buffer (Distribution) IC manufactured by Diodes Incorporated, designed for 1:7 clock distribution at frequencies up to 133 MHz. This component operates with CMOS/TTL input and output compatibility, housed in a 16-TSSOP surface mount package. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Substiute Parts

PI49FCT32803LE

Diodes IncorporatedIn Stock: 965PI49FCT32803LE Datasheet

Current PartRFQ

PI49FCT32803LEX

Diodes IncorporatedIn Stock: 7748PI49FCT32803LEX Datasheet

DirectRFQ

PI49FCT32802LE

Diodes IncorporatedIn Stock: 1768PI49FCT32802LE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PI49FCT32803LE are classified based on the following substitution criteria:

Direct Manufacturer Equivalent (Packaging Variant): PI49FCT32803LEX maintains identical electrical specifications and package form factor as the main part. The substitution is valid based on matching input:output ratio (1:7), maximum frequency (133 MHz), supply voltage range (2.97V ~ 3.63V), operating temperature range (-40°C ~ 85°C), and identical 16-TSSOP package dimensions. The only difference is packaging format (Tape & Reel vs. standard packaging). This part is currently in active production status.

Parametric Equivalent (Modified Ratio): PI49FCT32802LE is a parametric equivalent with a modified input:output ratio of 1:5 instead of 1:7. All other electrical parameters remain identical: maximum frequency (133 MHz), supply voltage (2.97V ~ 3.63V), operating temperature range (-40°C ~ 85°C), and package form factor (16-TSSOP). This substitution is valid only when the application can accommodate a 1:5 distribution instead of 1:7. This part is in active production status.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (PI49FCT32803LEX): Select PI49FCT32803LEX when a one-to-one functional replacement is required. This part maintains all electrical and mechanical specifications of the obsolete PI49FCT32803LE while offering active production status and improved supply chain availability. The part is ROHS3 compliant and carries MSL Level 1 rating, suitable for standard manufacturing environments. Packaging format differs (Tape & Reel), which may require adjustment to procurement and assembly processes but does not affect electrical performance.

For Modified Distribution Requirements (PI49FCT32802LE): Select PI49FCT32802LE only when the application architecture can be modified to operate with a 1:5 clock distribution instead of 1:7. This substitution is valid because all other electrical parameters—frequency capability, supply voltage, logic compatibility, and operating temperature range—remain identical. This part is in active production status with ROHS3 compliance and MSL Level 1 rating. Packaging is supplied in Tube format.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component. MSL Level 1 rating across all parts indicates no moisture sensitivity restrictions during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can PI49FCT32803LEX be used as a direct replacement for PI49FCT32803LE? A: Yes. PI49FCT32803LEX is electrically and mechanically identical to PI49FCT32803LE. The only difference is packaging format (Tape & Reel vs. standard packaging). Both maintain the 1:7 distribution ratio, 133 MHz maximum frequency, and 16-TSSOP form factor.

Q: What is the key difference between PI49FCT32803LE and PI49FCT32802LE? A: The input:output ratio differs. PI49FCT32803LE provides 1:7 distribution, while PI49FCT32802LE provides 1:5 distribution. All other electrical specifications are identical. Substitution is valid only if the application can operate with fewer output channels.

Q: Are all substitute parts ROHS3 compliant? A: Yes. PI49FCT32803LEX and PI49FCT32802LE are both ROHS3 compliant, matching the compliance status of the original PI49FCT32803LE.

Q: What is the MSL rating for these parts? A: All parts carry MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard storage and handling procedures are sufficient.

Q: Does packaging format affect electrical performance? A: No. Packaging format (Tape & Reel, Tube, or standard) does not affect electrical performance. Format selection is based on procurement, storage, and assembly process requirements.

Q: Why is PI49FCT32803LE listed as obsolete? A: Product obsolescence is determined by the manufacturer. PI49FCT32803LEX, the active equivalent, is available for new designs and ongoing production support.

Q: Can PI49FCT32802LE be used in all applications designed for PI49FCT32803LE? A: No. PI49FCT32802LE can only be used if the application architecture supports 1:5 clock distribution instead of 1:7. Circuit board layout and firmware/software timing requirements must be evaluated before substitution.